通过经济学和能量学分析评估花生杂草管理方法对杂草控制和产量的影响

Prakash Rabari, V. Hatti, J. R. Jat, M. G. Chaudhary, G. K. Chaudhary, Vikash Kumar
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摘要

2021 年 Kharif 期间,在萨达克鲁西那加(Sardarkrushinagar)丹提瓦达农业大学 C. P. 农学院农艺教学农场的壤质砂土上进行了一项田间试验,以评估各种杂草管理方法对花生的影响。在不同的处理中,20 和 40 DAS 期的两次人工除草、15 和 30 DAS 期的间作和人工除草、萌芽后施用炔草酯钠 16.5 + clodinafop-propargyl 8 EC @ 165+80 g/ha 和 imazethapyr 35 WG + imazamox 35 WG @ 70 g/ha,这些处理的杂草密度(莎草、禾本科杂草、阔叶杂草和总杂草)类别百分比较低,导致在 20 和 40 DAS 期进行两次人工除草的豆荚和茎秆产量显著增加(分别为 1980 和 3082 kg/ha),与在 15 和 30 DAS 期进行的人工除草的豆荚和茎秆产量相当、分别为 1980 千克/公顷和 3082 千克/公顷),与 15 和 30 DAS 期的间作和人工除草产量(分别为 1892 千克/公顷和 2950 千克/公顷)相当。5 + clodinafop-propargyl 8 EC @ 165+80 克/公顷(分别为 1835 和 2864 千克/公顷)和咪鲜胺 35 WG + imazamox 35 WG @ 70 克/公顷(分别为 1800 和 2811 千克/公顷)、与未除草的对照相比,这些处理除了能有效控制禾本科杂草、莎草、阔叶杂草和总杂草外,还能获得更高的总收益、净收益、净能源收益、能源利用效率和能源生产率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of Weed Management Practices on Weed Control and Productivity as Evidenced by Economics and Energetics Analysis in Groundnut
A field experiment was conducted during Kharif 2021 to assess the effect of various weed management practices in groundnut at Agronomy Instructional Farm, C. P. College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar on loamy sand soil. Among different treatments, two hand weeding at 20 and 40 DAS, interculturing and hand weeding at 15 and 30 DAS, post-emergence application of sodium acifluorfen 16.5 + clodinafop-propargyl 8 EC @ 165+80 g/ha and imazethapyr 35 WG + imazamox 35 WG @ 70 g/ha have recorded lower % of category wise weed density (sedges, grasses, broad leaf weeds and total weeds) resulting in significantly higher pod and haulm yield in two hand weeding at 20 and 40 DAS (1980 and 3082 kg/ha, respectively) which was found at par with interculturing and hand weeding at 15 and 30 DAS (1892 and 2950 kg/ha, respectively), post-emergence application of sodium acifluorfen 16.5 + clodinafop-propargyl 8 EC @ 165+80 g/ha (1835 and 2864 kg/ha, respectively) and imazethapyr 35 WG + imazamox 35 WG @ 70 g/ha (1800 and 2811 kg/ha, respectively) as compared to unweeded check (846 and 1333 kg/ha, respectively) apart from witnessing higher gross monetary returns, net monetary returns, net energy returns, energy use efficiency, energy productivity due to effective control of grasses, sedges, broad leaf and total weeds in these treatments as compared to unweeded check.
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