Scholarlink

<p>Burning crop residue, continuous intensive tillage, imbalanced fertilization, and indiscriminate use of herbicides have all contributed to the depletion of natural resources. Therefore, three weed management practices (WMPs) (recommended herbicides [H–H], integrated weed management [IWM-IWM], and hand weeding [HW-HW]) and five tillage combinations (conventional-till maize and wheat [CT-CT], conventional-till maize and no-till wheat [CT-NT], no-till maize and wheat [NT-NT], no-till maize and no-till wheat with residue incorporation [NT-NTR], and no-till with residue incorporation in both maize and wheat [NTR-NTR; CA, conservation agriculture]) were assessed in monsoon maize‒winter wheat cropping systems (MWCSs) from 2018–20. The results indicated that the NTR-NTR treatment consistently reduced total weed biomass (TWB) in maize. In wheat, however, while NTR-NTR initially suppressed TWB during the early growth stages, lower TWB was observed under the CT-CT treatment at later stages. Compared with CT-CT, NTR requires ~ 54% less energy as diesel and has a total energy utilization increase of ~ 250%. Compared with NT-NT, NTR-NTR had 3.2 and 3.8% greater partial factor productivity (PFP), and nitrogen use efficiency (NUE), respectively, and higher system productivity by 118 and 105%, respectively, than NT-NT and CT-CT. Among WMPs, recommended herbicide application (H–H) had a lower TWB and higher PFP, economic nutrient-use efficiency (ENUE) and system productivity than the IWM-IWM and HW-HW. Hence, we found that NTR-NTR in combination with H–H was superior in achieving sustainably high productivity, resource and energy efficiencies in the MWCS under rainfed North-Western Himalayan conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Resource optimization, energy use, and weed dynamics in a conservation agriculture–based rainfed maize–wheat system

  • 期刊论文

  • 发表日期：

    2025年11月22日

查看全文
  • Sachin Kumar,
  • Surinder Singh Rana,
  • Pankaj Chopra,
  • Abdulrahman Alasmari,
  • Akbar Hossain

摘要

Burning crop residue, continuous intensive tillage, imbalanced fertilization, and indiscriminate use of herbicides have all contributed to the depletion of natural resources. Therefore, three weed management practices (WMPs) (recommended herbicides [H–H], integrated weed management [IWM-IWM], and hand weeding [HW-HW]) and five tillage combinations (conventional-till maize and wheat [CT-CT], conventional-till maize and no-till wheat [CT-NT], no-till maize and wheat [NT-NT], no-till maize and no-till wheat with residue incorporation [NT-NTR], and no-till with residue incorporation in both maize and wheat [NTR-NTR; CA, conservation agriculture]) were assessed in monsoon maize‒winter wheat cropping systems (MWCSs) from 2018–20. The results indicated that the NTR-NTR treatment consistently reduced total weed biomass (TWB) in maize. In wheat, however, while NTR-NTR initially suppressed TWB during the early growth stages, lower TWB was observed under the CT-CT treatment at later stages. Compared with CT-CT, NTR requires ~ 54% less energy as diesel and has a total energy utilization increase of ~ 250%. Compared with NT-NT, NTR-NTR had 3.2 and 3.8% greater partial factor productivity (PFP), and nitrogen use efficiency (NUE), respectively, and higher system productivity by 118 and 105%, respectively, than NT-NT and CT-CT. Among WMPs, recommended herbicide application (H–H) had a lower TWB and higher PFP, economic nutrient-use efficiency (ENUE) and system productivity than the IWM-IWM and HW-HW. Hence, we found that NTR-NTR in combination with H–H was superior in achieving sustainably high productivity, resource and energy efficiencies in the MWCS under rainfed North-Western Himalayan conditions.