An Asian Journal of Soil Science

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Effect of Nutrient Management Approaches on Maximizing Productivity, Nutrient Uptake, Soil Fertility and Economics of Maize (Zea mays L.)-Chickpea (Cicer arietinum L.) Cropping Sequence


Affiliations
1 Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Raichur (Karnataka), India
     

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Present investigation was conducted during Kharif and Rabi seasons of 2013-14 and 2014-15 at ARS, Raddewadagi, dist. Kalaburagi, UAS, Raichur, Karnataka to study the effect of nutrient management approaches on maximizing productivity, nutrient uptake, soil fertility and economics of maize-chickpea cropping sequence. Application of nutrients through SSNM for targeted yield of 7.0 or 8.0 t ha-1 recorded significantly higher growth attributes, yield and yield attributes and uptake of N, P2O5 and K2O in maize-chickpea cropping system as compared to farmers practice, RDF and STL method. However, it was at par with STCR approach targeted yield of 7 or 8.0 t ha-1. Organic carbon content was non-significant in maize-chickpea sequence cropping system. However, significantly higher available N, P2O5 and K2O (301.05, 62.93 and 439.38 kg ha-1, respectively) were noticed with nutrients applied through 125 per cent SSNM approach for targeted yield of 8.0 t ha-1 as compared to absolute control, farmers practice, state recommendation, STL method and 125 per cent SSNM approach for targeted yield of 7.0 t ha-1 after harvest of second crop in maize-chickpea sequence cropping system and it was on par with SSNM or STCR approach for targeted yield of 7.0 or 8.0 t ha-1. The cost of cultivation of maize-chickpea sequence was higher (Rs. 50,542 ha-1) with nutrients applied through 125 per cent SSNM approach for targeted yield of 8.0 t ha-1. However, the higher maize-equivalent yield, gross returns, net returns and BC ratio (19083 kg ha-1, Rs.2,53,985, Rs. 2,04,279 ha-1 and 5.11, respectively) could be achieved in SSNM approach targeted yield of 8.0 t ha-1 followed by STCR approach targeted yield of 8.0 t ha-1 (18751 kg ha-1, Rs. 2,49,360, Rs. 1,99,828 ha-1 and 5.03, respectively) in maize-chickpea sequence cropping system.

Keywords

Targeted Yield, Productivity, Nutrient Uptake, Soil Fertility, Economics.
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  • Effect of Nutrient Management Approaches on Maximizing Productivity, Nutrient Uptake, Soil Fertility and Economics of Maize (Zea mays L.)-Chickpea (Cicer arietinum L.) Cropping Sequence

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Authors

B. V. Shreenivas
Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Raichur (Karnataka), India
M. V. Ravi
Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Raichur (Karnataka), India
H. S. Latha
Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Raichur (Karnataka), India

Abstract


Present investigation was conducted during Kharif and Rabi seasons of 2013-14 and 2014-15 at ARS, Raddewadagi, dist. Kalaburagi, UAS, Raichur, Karnataka to study the effect of nutrient management approaches on maximizing productivity, nutrient uptake, soil fertility and economics of maize-chickpea cropping sequence. Application of nutrients through SSNM for targeted yield of 7.0 or 8.0 t ha-1 recorded significantly higher growth attributes, yield and yield attributes and uptake of N, P2O5 and K2O in maize-chickpea cropping system as compared to farmers practice, RDF and STL method. However, it was at par with STCR approach targeted yield of 7 or 8.0 t ha-1. Organic carbon content was non-significant in maize-chickpea sequence cropping system. However, significantly higher available N, P2O5 and K2O (301.05, 62.93 and 439.38 kg ha-1, respectively) were noticed with nutrients applied through 125 per cent SSNM approach for targeted yield of 8.0 t ha-1 as compared to absolute control, farmers practice, state recommendation, STL method and 125 per cent SSNM approach for targeted yield of 7.0 t ha-1 after harvest of second crop in maize-chickpea sequence cropping system and it was on par with SSNM or STCR approach for targeted yield of 7.0 or 8.0 t ha-1. The cost of cultivation of maize-chickpea sequence was higher (Rs. 50,542 ha-1) with nutrients applied through 125 per cent SSNM approach for targeted yield of 8.0 t ha-1. However, the higher maize-equivalent yield, gross returns, net returns and BC ratio (19083 kg ha-1, Rs.2,53,985, Rs. 2,04,279 ha-1 and 5.11, respectively) could be achieved in SSNM approach targeted yield of 8.0 t ha-1 followed by STCR approach targeted yield of 8.0 t ha-1 (18751 kg ha-1, Rs. 2,49,360, Rs. 1,99,828 ha-1 and 5.03, respectively) in maize-chickpea sequence cropping system.

Keywords


Targeted Yield, Productivity, Nutrient Uptake, Soil Fertility, Economics.

References