1. Long-term conservation agriculture and best nutrient management improves productivity and profitability coupled with soil properties of a maize–chickpea rotation
- Author
-
K. Swarnalakshmi, C.M. Parihar, R.R. Zhiipao, T. Satyanarayana, R.K. Jat, Hardev Ram, Kajal Das, Akshat Verma, Shankar Lal Jat, A. Nath, Niraj Biswakarma, Kaushik Majumdar, Debasish Roy, R. D. Jat, Vijay Pooniya, P. C. Ghasal, Dinesh Kumar, and Achal Lama
- Subjects
0106 biological sciences ,Restoration ecology ,Field experiment ,Conservation agriculture ,Science ,engineering.material ,01 natural sciences ,Article ,Nutrient ,Ecosystem services ,Agroecology ,Mathematics ,Multidisciplinary ,Nutrient management ,04 agricultural and veterinary sciences ,Bulk density ,Sustainability ,Agronomy ,040103 agronomy & agriculture ,engineering ,0401 agriculture, forestry, and fisheries ,Soil horizon ,Medicine ,Fertilizer ,010606 plant biology & botany - Abstract
Conservation agriculture (CA)-based practices have been promoted and recouped, as they hold the potential to enhance farm profits besides a consistent improvement in soil properties. A 7 years' field experiment consisting of three crop establishment practices viz., zero-till flatbed (ZTFB), permanent beds (PNB), conventional system (CT) along with the three-nutrient management; nutrient expert-based application (NE), recommended fertilization (RDF), and farmers’ fertilizer practice (FFP), was carried out from 2013 to 2020. The CA-based practices (ZTFB/PNB) produced 13.9–17.6% greater maize grain-equivalent yield (MGEY) compared to the CT, while NE and RDF had 10.7–20% greater MGEY than the FFP. PNB and ZTFB gave 28.8% and 24% additional net returns than CT, while NE and RDF had 22.8% and 17.4% greater returns, respectively over FFP. PNB and ZTFB had 2.3–4.1% (0.0–0.20 m soil layers) lower bulk density than the CT. Furthermore, microbial biomass carbon (MBC) increased by 8–19% (0.0–0.50 m soil layers) in ZTFB/PNB over the CT, and by 7.6–11.0% in NE/RDF over FFP. Hence, CA-based crop establishment coupled with the NE or RDF could enhance the yields, farm profits, soil properties of the maize–chickpea rotation, thereby, could sustain production in the long run.
- Published
- 2021