Long-Term Integrated Nutrient Management in the Maize–Wheat Cropping System in Alluvial Soils of North-Western India: Influence on Soil Organic Carbon, Microbial Activity and Nutrient Status

Agronomy

Akbar Hossain¹  Sohan Singh Walia²  Ahmed Gaber³  Majid Alhomrani⁴  Mehakpreet Kaur Randhawa⁵  Prabhjot Singh⁵  Lovedeep Kaur Pandher⁵  Sandeep Sharma⁵  Vivek Sharma⁵  Salwinder Singh Dhaliwal⁵  Amardeep Singh Toor⁵  Vibha Verma⁵  Arvind Kumar Shukla⁶ 

[1] Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur 5200, Bangladesh;Department of Agronomy, Punjab Agricultural University, Ludhiana 141004, India;Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;Department of Soil Science, Punjab Agricultural University, Ludhiana 141004, India;Indian Institute of Soil Science, Bhopal 462038, India;

关键词: organic manure;    inorganic fertilizers;    cropping pattern;    soil physicochemical and biological properties;   

DOI  :  10.3390/agronomy11112258

来源: DOAJ

【 摘 要 】

Integrated nutrient management (INM) is a widely recognized tool to ensure sustainable crop productivity while preserving soil fertility. The addition of organic manures in soil has been evidenced to improve soil characteristics, in addition to improving nutrient availability. The soil samples, with five treatment combinations of chemical fertilizers with farmyard manure (FYM), were collected from a 17-year-old field experiment conducted at PAU, Ludhiana to investigate the effect of INM on the buildup of organic carbon (OC), microbial community, soil nutrient status and improvement in soil physical properties under the maize–wheat cropping system. The INM technique enhanced the OC content (0.44 to 0.66%), available N (152.8 to 164.9 kg ha⁻¹), P (22.8 to 31.4 kg ha⁻¹) and K (140.6 to 168.0 kg ha⁻¹) after 17 years. The DTPA-extractable and total micronutrients (Zn, Cu, Fe, and Mn) status also improved significantly with FYM supplementation. The organic source, coupled with inorganic fertilizers, improved the water holding capacity, total porosity, soil respiration, microbial biomass C, microbial biomass N, and potentially mineralizable N. However, pH, EC, and bulk density of soil decreased with the addition of FYM, coupled with chemical fertilizers.

【 授权许可】

Unknown