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Diversification of rice with pigeonpea in a rice-wheat cropping system on a Typic Ustochrept: effect on soil fertility, yield and nutrient use efficiency

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Relation http://oar.icrisat.org/3600/
http://dx.doi.org/10.1016/j.fcr.2004.09.011
 
Title Diversification of rice with pigeonpea in a rice-wheat cropping system on a Typic Ustochrept: effect on soil fertility, yield and nutrient use efficiency
 
Creator Singh, VK
Dwivedi, B S
Shukla, A K
Chauhan, Y S
Yadav, R L
 
Subject Pigeonpea
 
Description Continuous adoption of rice-wheat cropping system (RWCS) has led to depletion of inherent soil fertility resulting in a serious threat to its sustainability in the Indo-Gangetic plain region (IGPR) of India. The inclusion of legumes in RWCS assumes a great significance to restore soil fertility. But farmers in the IGPR rarely grow legumes in the system. We, therefore, carried out farmers' participatory diagnostic survey in the Upper Gangetic plain zone (UGP) to understand farmers' fertilizer management practices for wheat (Trititicum aestivum L. Emend Fiori & Paol) following rice (Oryza sativa L.) or pigeonpea (Cajanus cajan (L.) Millsp). The survey indicated that most of the farmers in UGP grew pigeonpea in place of rice under RWCS as only a break crop at a 2-3 year interval. The farmers applied, on average, 11 kg N ha-1 and 24 kg P ha-1 to wheat sown after rice, and 12 kg N ha-1 and 19 kg P ha-1 to wheat sown after pigeonpea. Wheat yields, however, were lower (3.3 t ha-1) when sown after pigeonpea than after rice (3.7 t ha-1). The survey was followed by a field experiment at Modipuram (29°4′N), Meerut, India that continued during the three consecutive years (1998-1999 to 2000-2001) to examine the effect of inclusion of pigeonpea in place of rice on soil fertility, N and P use efficiency and yields of wheat. In 1998-1999, wheat yields after pigeonpea were lower than after rice, but improved significantly (p
 
Publisher Elsevier
 
Date 2005
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/3600/1/FieldCropsResearch_92_1_85-105_2005.pdf
Singh, VK and Dwivedi, B S and Shukla, A K and Chauhan, Y S and Yadav, R L (2005) Diversification of rice with pigeonpea in a rice-wheat cropping system on a Typic Ustochrept: effect on soil fertility, yield and nutrient use efficiency. Field Crops Research, 92 (1). 85-105 . ISSN 0378-4290