Effect of site-specific nutrient management on productivity and economics of rice (Oryza sativa)–wheat (Tritucum aestivum) system Mauriya A.K.*, Subject Matter Specialist, Maurya V.K., Ph.D. Student (Horticulture), Tripathi H.P., Assistant Professor-cum-Junior Scientist (Agronomy), Verma R.K.1, Shyam Radhey2 Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad, Uttar Pradesh-224 229 1Professor & Head, NDUAT, Faizabad, U.P. 2Assistant Professorcum-Junior Scientist, BPS Agriculture College, Bihar Agricultural University, Sabour, Bhagalpur *Corresponding author Email: ak.mauriya12@gmail.com
Online published on 25 September, 2013. Abstract A field study was conducted during two consecutive years 2006–08, to evaluate the response of site-specific nutrient management (SSNM) on productivity and economics of rice (Oryza sativa L.)–wheat {Triticum aestivum (L.) emend Fiori and Paol} cropping system. The total productivity of the cropping system in terms of rice yield equivalent (14.8 t/ha/annum) was the highest with the application of SSNM treatment i.e. N150P60K120S40B5Mn20Zn25 in rice and N150P60K120 in wheat, which was 66.4% higher over farmer's practice and 28.2% over state recom mended practice. All the yield attributing characters as well as yield of both rice and wheat showed beneficial effects of site-specific nutrient management. Highest net returns of  67,033/ha/annum obtained with SSNM treatment, which was 31,681 and  16,905/ha/annum higher over that of farmer's practice and state recommended doses, respectively. Thus, nutrients in rice–wheat cropping system may be applied on site-specific soil test basis including micronutrients along with major nutrients for higher productivity and profitability. Top Keywords Economics, Rice–wheat system, Site-specific nutrient management. Top |