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Development of Protocol for Custom Mixed Fertilizers for Elephant Foot Yam under Intercropping in Coconut Gardens of the Two Agro- Ecological Units of Kerala

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Title Development of Protocol for Custom Mixed Fertilizers for Elephant Foot Yam under Intercropping in Coconut Gardens of the Two Agro- Ecological Units of Kerala
Not Available
 
Creator P.S. Anju1, K. Susan John1, Subhendu Bhadraray2, G. Suja1, Jeena Mathew3, K.M. Nair4, S. Sunitha1 and S.S. Veena1
 
Subject Amorphophallus paeoniifolius, agro ecological units, tuber yield, nutrient requirement, fertilizer use efficiency, customized fertilizer, soil test crop response, response curve
 
Description Not Available
Root and tubers are the third most important food crops constituting either the staple or subsidiary
food for about one fifth of the world population. Elephant foot yam (EFY) (Amorphophallus paeoniifolius
(Dennst).Nicolson) is a highly potential tropical tuber crop and an ideal intercrop for the coconut
gardens of Kerala especially in Agro Ecological Unit (AEU) 9 (South central laterites) and AEU 3
(Onattukara sandy plain) having laterite and sandy soil types. This paper narrates the protocols designed
for the development of nutrient mixtures comprising of major, secondary and micronutrients for EFY
intercropped in coconut gardens known as ‘custom mixed fertilizers’. It is a mixed multi nutrient
carrier whose sources are from inorganic and organic origin which are formulated through specific
systematic process of granulation and satisfies the nutritional demands of the crop, specific to agro
ecology, soil type and plant need designed taking into account the farmers nutrient management
strategy also. The present study for the formulation of the custom fertilizer for the two AEU’s included
the optimization of all required nutrients based on the weighted average of the soil data of the two
AEU’s comprising of 43 (AEU 3) and 161 (AEU 9) panchayats followed by validation of the optimum
fixed through nutrient omission and nutrient level plot techniques for both major, secondary and
micronutrients as field experiments in farmers plots and on station. Based on the survey on farmers’
nutrient application strategy, tuber yield, plant nutrient contents, total plant uptake, pre and post soil
test data, parameters like nutrient requirement, % contribution from soil, fertilizer use efficiency and
nutrients to be applied through fertilizers were arrived. By fitting these parameters in soil test crop
response and response curve approaches, the rate/ grades of component nutrients for the custom
made fertilizers and their levels of application for the two AEU’s were designed. The three grades
designed were tried in two rates in five locations of the two AEU’s with eight treatments (including
package of practices and farmers’ practice) replicated thrice in randomized block design.
Not Available
 
Date 2021-08-04T06:05:16Z
2021-08-04T06:05:16Z
2016-12-01
 
Type Article
 
Identifier Not Available
0378-2409
http://krishi.icar.gov.in/jspui/handle/123456789/52842
 
Language English
 
Relation Not Available;
 
Publisher Indian Society for Root Crops