Field-specific nutrient management using Rice Crop Manager decision support tool in Odisha, India.

ABSTRACT: The requirement of rice (Oryza sativa L.) for fertilizer can depend on crop and soil management practices, which can vary among fields within a rice-growing area. A web-based decision support tool named Rice Crop Manager (RCM) was developed previously to calculate field-specific rates of fertilizer N, P, and K for rice in Odisha State in eastern India. We compared field-specific nutrient management calculated by RCM with farmers' fertilizer practice (FFP) and a blanket fertilizer recommendation (BFR), which used a uniform 80 kg N ha^-1, 17 kg P ha^-1, and 33 kg K ha^-1. A total of 209 field trials were conducted in two seasons (kharif and rabi) for two years across ten districts in six agro-climatic zones. Grain yield was consistently higher with fertil

SUBMITTER: Sharma S 

PROVIDER: S-EPMC6737991 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature