© The Authors, 2024, Published by the Universidad del Zulia*Corresponding author: gloria.cobena@iniap.gob.ec
Keywords:
Treatment
Yield
Commercial tuberous roots
INIAP-Toquecita
INIAP-Buena Vista
Inuence of inorganic fertilization on production parameters of two varieties of sweet potato



1*
Eddie Ely Zambrano Zambrano



2



Crop production



1
     

2



272
Abstract

       
          
        

    

          
            

N+P
2
5
+K
2

2
5
+K
2

more N+P
2
5
+K
2

2
5
+K
2




   

         
      


This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Rev. Fac. Agron. (LUZ). 2024, 41(1): e244109 January-March. ISSN 2477-9407.2-6 |
Resumen
         
       
      


     

          
       
           

        
N+P
2
5
+K
2

2
5
+K
2


2
5
+K
2


2
5
+K
2




 
         
       
             
        
       

Palabras clave:    

Resumo
         



       
      


       


N+P
2
5
+K
2

2
5
+K
2


2
5
+K
2


2
5
+K
2

      
       

    
        





Palavras-chave:

Introduction
  Ipomoea batatas   
et al





et
al

     

        

         



Table 1. Nutritional requirements of sweetpotato (Ipomoea batatas
L.) according to soil analysis interpretation performed by
the National Institute of Agricultural Research-Ecuador
(INIAP-Ecuador) during 2022.
Interpretation of soil
analysis
Requirement
kg.ha
-1
N P
2
O
5
K
2
O
   
   
   

         
tuberous
    et al    


in addition
the lea        
et al
The soil 



characteristic         

        



-1






This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Cobeña et al. Rev. Fac. Agron. (LUZ). 2024 40(1): e2441093-6 |
Materials and methods

   
 
          

 


     
       

Ipomoea batatas



           


        





          
        


      
         

Table 2. Inorganic fertilization treatments of the varieties
“INIAP-Toquecita” and “INIAP-Buena Vista”.
Treatment
N P
2
O
5
K
2
O S Mg B Zn Mn Fe
kg.ha
-1
1    25  
2    25     
 15 15   
  


         



        


      


          
         
    
        


-1


        


Table 3. Frequency of application and fractionation of doses of nutrients applied to the soil according to the treatments studied.
Treatment 
N P
2
5
K
2
S  B Zn  Fe

-1
T1
  
  25  
 
T2
  
  25    
 

 15 15
    
 

  
 
 
T5



This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Rev. Fac. Agron. (LUZ). 2024, 41(1): e244109 January-March. ISSN 2477-9407.4-6 |

by the International Potato Center (CIP et al   





           







         




-1



           





         
      
        

        

Results and discussion
    
       

          
      

          
       
         


       


       
   


et al

Table 4. Average yield in the “INIAP-Toquecita” and “INIAP-
Buena Vista” varieties at 15 dap.
Treatment
“INIAP-Toquecita” “INIAP-Buena Vista”
Sprouting (%)
1  
2  
 
 
  
X
 
  
ns *



et al




et al

-1

Table 5. Total number, length and mass of 100 guides of the varieties “INIAP-Toquecita” and “INIAP-Buena Vista”.
Treatment
“INIAP-Toquecita” “INIAP-Buena Vista”
Total number of
guides per plant
Guide length (m)
Mass of 100 guides
(kg)
Total number of
guides per plant
Guide length (m)
Mass of 100 guides
(kg)
1    6  
2     
25   6  
   6  
 15   5  
X
   6  
      
ns ns ns ns ns ns

This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Cobeña et al. Rev. Fac. Agron. (LUZ). 2024 40(1): e2441095-6 |
Table 6. Yields and number of commercial tuberous roots of the
variety “INIAP-Toquecita”.
Treatament Foliage yield (t.ha
-1
)
Number of
commercial
tuberous roots
(ha)
Yield of
commercial
tuberous roots
(t.ha
-1
)
1   
2   
  
  
   
X   
   
  
p: probability, ns: not signicant.
  
     
   
        
        
et al



-1

Table 7. Yield data and number of commercial tuberous roots of
the variety “INIAP-Buena Vista”.
Treatment
Foliage yield
(t.ha
-1
)
Number of
commercial
roots (ha)
Commercial root
yields
(t.ha
-1
)
1   
2   
  
  
   
X
  
   
  *
p: probability, ns: not signicant, *: signicant (Tukey, p<0.05).

         

et al
          
        



-1



           
         
    
         
 




Figure 1. Chlorophyll index of sweetpotato (Ipomoea batatas L.)
var. “INIAP-Toquecita”.

        

et al


Figure 2. Chlorophyll index of sweetpotato (Ipomoea batatas L.)
var. “INIAP-Buena Vista”.
     


et al

This scientic publication in digital format is a continuation of the Printed Review: Legal Deposit pp 196802ZU42, ISSN 0378-7818.
Rev. Fac. Agron. (LUZ). 2024, 41(1): e244109 January-March. ISSN 2477-9407.6-6 |
Table 8. Macro and micro element content determined in the foliage of the varieties “INIAP-Toquecita” and “INIAP-Buena Vista” at
120 dap.
Treatment Variety
N P K Ca  S B Zn Cu Fe 

-1
1


251   1  26   12  12
2 2   212  25 56 65   26
2   1       
2   2   62    
 2  66 225      161 
1


2   2 51 25   16  26
2 2   1       65
2   2  26   16  
   1  26   56  
 2   1  26     62


 Ipomoea batatas   


      




PLoS ONE, 14

            

Revista Brasileira de Ciencia
Do Solo, 44

      Research Journal
of Chemistry and Environment, 16  




          
           
camote (Ipomoea batatas      
     




           
Journal of Agronomy and Crop Science, 180


     
Ciencia y Desarrollo, 20 


lpomoea batatas

           
         
(Ipomoea batatasRevista de Investigación e Innovación Agropecuaria
y de Recursos Naturales, 10  

           
       
     Field Crops Research,
238
Conclusions

        



         
      

       

Acknowledgments
         




Literature cited
             
    Triticum aestivum
Journal of Agriculture & Social Science, 1  

           
       








     
     
