Long-term effects of inorganic fertilizer and farmyard manure application on productivity, sustainability and profitability of rice-wheat system in Mollisols. Issue 2 (28th January 2019)

• Record Type: Journal Article
• Authors: Singh, Dhananjay Kumar; Pandey, Pooran Chandra; Nanda, Gangadhar; Gupta, Shilpi
• Is Part Of: Archives of agronomy and soil science. Volume 65:Issue 2(2019)
• Page Start: 139
• Page End: 151
• Publication Date: 2019-01-28
• Subjects: Rice-wheat system -- productivity -- sustainability -- profitability; Horticulture -- Periodicals; Soils -- Periodicals; 630.5
• DOI: 10.1080/03650340.2018.1491032
• Languages: English
• ISSNs: 0365-0340

Abstract

ABSTRACT: In this investigation, productivity, sustainability and profitability of rice-wheat system were evaluated using the data of a long-term fertility experiment initiated during 1984 at Pantnagar, Uttarakhand, India. Eight treatments (application of N, NP, PK, NK, NPK, NPK + Zn, NPK + FYM and control) were tested in randomized block design. Results revealed that application of NPK + FYM gave the highest and sustainable grain yields for rice, wheat and the system. None of the treatments except NPK + FYM was able to enhance the soil organic carbon content after 31 crop cycles over the initial level. Application of NPK + FYM was the most profitable treatment which provided the highest net return and B: C ratio for rice, wheat and the system. Trend analysis indicated that there were yield declines in all the treatments. Response to P, K and Zn in rice and wheat, and to FYM in terms of system productivity increased over the studied period. The results suggest that continuous application of NPK + FYM would sustain higher yields of rice and wheat over longer period of time with higher profits in rice-wheat system.