Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Soil Test Crop Response approach for Chickpea Crop in Vertisol
T4-38P-1390
Y. S. Satish Kumar * , K. Arun Kumar, K. Prabhakar, K. Mohan Vishnuvardhan,
K. Jaya Lakshmi, S. Isha Parveen and M. Jyotsna Kiranmayi
Regional Agricultural Research Station, Acharya N. G. Ranga Agricultural University,
Nandyal-518502
* ys.sathishkumar@angrau.ac.in
Various approaches have been tried to determine the amount of fertilizer needed for different
crop yield. Among different approaches the targeted yield approach has proved its variation in
the recommendation of chemical fertilizers to variety of crops. Chickpea (Cicer arientinum) is
the world 3rd most important source of food legume crop. Chickpea grains are rich source of
protein contains about 23% protein, 57% carbohydrates and 5% fat. It is also good source of
vitamine B and minerals like potassium, phosphorus and zinc. In India, chickpea is grown on an
8.59 million ha area with 7.05 million tonne production. In Maharashtra chickpea is grown on
1.44 million ha area with 0.73-million-ton production. The average productivity of chickpea in
India is 840 kg ha-1 which is considerably low as compared to the production potential of the
improved cultivars of chickpea. The productivity of chickpea can be increased by judicious and
balanced fertilization. Fertilizer management through Integrated Plant Nutrient Supply (IPNS)
based yield target fertilizer prescription equations can be the best option for increase in
productivity as well as maintaining the soil health. It is necessary to supply essential nutrient
elements in appropriate proportion to maintain soil health and soil fertility and also to increase
the crop production. Several approaches have been used for fertilizer recommendation based on
chemical soil test so as to attain maximum yield per unit of fertilizer use. Among the various
approaches, the target yield approach has found popularity in India (Subba Rao and Srivastava,
2000). This method not only estimates soil test-based fertilizer dose but also the level of yield the
farmer can achieve with that particular dose. It gives a real balance between applied nutrients and
the available nutrients already present in the soil. Crop fertilization based on generalized
recommendation leads to under fertilization or over fertilization, which leads lower production,
profitability along with environmental pollution. Enhancement of farm profitability under
different soil climate condition it is necessary to have information on optimum fertilizer
recommendation for different crop which are based on the soil test and crop response studies.
Keeping in view, the present investigation entitled ‘Soil test crop response approach for chickpea
crop in Vertisol’ was undertaken to assess the effect of STCR based N, P and K application on
productivity of Chickpea crop.
Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming,
INM, soil-microorganisms-plant interactions
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