relation: http://oar.icrisat.org/10599/ title: Enhanced nutrient and rainwater use efficiency in maize and soybean with secondary and micronutrient amendments in the rainfed semi-arid tropics creator: Chander, G creator: Wani, S P creator: Sahrawat, K L creator: Rajesh, C subject: Cereals subject: Semi-Arid Tropics subject: Soil subject: Maize subject: Water Resources subject: Legume Crops description: In view of widespread deficiencies, a long-term experiment was started at the International Crops Research Institute for the Semi-Arid Tropics, Patancheru, India in 2007 to identify economically efficient application strategy (full or 50% dose every or every second year) of sulphur (S) (30 kg ha−1), boron (B) (0.5 kg ha−1) and zinc (Zn) (10 kg ha−1). During the fourth year in 2010, balanced fertilization through adding S, B and Zn increased maize grain yield by 13–52% and soybean yield by 16–28% compared to nitrogen (N) and phosphorus (P) fertilization alone. Balanced nutrition increased N and P uptake, utilization and use efficiency for grain yield and harvest index indicating improved grain nutritional quality. The N, P plus 50% of S, B and Zn application every year recorded highest crop yields and N and P efficiencies indices and increased rainwater use efficiency with a benefit:cost ratio of 11.9 for maize and 4.14 for soybean. This study showed the importance of a deficient secondary nutrient S and micronutrients B, Zn in improving N and P use efficiency while enhancing economic food production. publisher: Taylor & Francis date: 2015 type: Article type: PeerReviewed format: application/pdf language: en identifier: http://oar.icrisat.org/10599/1/Enhanced%20nutrient%20and%20rainwater.pdf identifier: Chander, G and Wani, S P and Sahrawat, K L and Rajesh, C (2015) Enhanced nutrient and rainwater use efficiency in maize and soybean with secondary and micronutrient amendments in the rainfed semi-arid tropics. Archives of Agronomy and Soil Science, 61 (3). pp. 285-298. ISSN 0365-0340 relation: http://dx.doi.org/10.1080/03650340.2014.928928 relation: 10.1080/03650340.2014.928928