Five years of conservation tillage and weed management in a rice-chickpea rotation of northern Gangetic Plains of India: Weed growth, yield benefits and economic profitability

Nath, C.P.; Kumar, Narendra; Hazra, K.K.; Dutta, Asik; Praharaj, C.S.; Singh, Raghavendra; Singh, S.S.; Dubey, R.P.; Sen, Suman; Dixit, G.P.; Kumar, Deepak

doi:10.1016/j.still.2024.106226

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Cited by 2 publications

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Cover crop and herbicides can control purple nutsedge (Cyperus rotundus L.) and increase crop yields in conservation agriculture-based crop rotations

Nath,

Kumar,

Dutta

et al. 2025

Crop Protection

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Cover crop and herbicides can control purple nutsedge (Cyperus rotundus L.) and increase crop yields in conservation agriculture-based crop rotations

Nath,

Kumar,

Dutta

et al. 2025

Crop Protection

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RETRACTED: Low rate of biochar with nitrogen fertilizer improved rice yield and economic benefits in rainfed lowland rice production system

Iboko,

Dossou-Yovo,

Obalum

et al. 2024

Preprint

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Rice production and food security in Sub-Saharan Africa are limited by low soil fertility and sub-optimal fertilization. However, the cost of improving soil nutrient content has become a significant challenge. Therefore, this study evaluated the agronomic and economic benefits of integrating low rate of locally produced biochar, nitrogen (N) fertilizer and no-tillage into the rainfed lowland rice production system in Côte d’Ivoire. Over two years, six treatments combining two rates of biochar (3 and 6 t ha⁻¹) and three rates of N fertilizer (0, 60, and 120 kg N ha⁻¹) under no-till condition (T0) were evaluated against a control (i.e., the current farmers’ practice of manual tillage and 120 kg N ha⁻¹). Data on rice growth, grain yield, labour productivity and production costs were collected and used to assess the partial N use efficiency, benefit, and benefit-cost ratio. Results indicated that the co-application of biochar and N fertilizer significantly improved rice growth, grain yield and labour productivity. The highest partial N use efficiency (113%) was observed under no-tillage combined with 6 t ha⁻¹ of biochar and 60 kg of N ha⁻¹, which also reduced the production cost by 22% and increased the benefit by 224%, relative to the current farmers’ practice. These findings suggest that the application of locally produced biochar at a low rate of 6 t ha⁻¹ with 60 kg N ha⁻¹ and no-tillage, can be recommended to smallholder rice farmers to enhance rice growth, yield, and economic benefits.

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Five years of conservation tillage and weed management in a rice-chickpea rotation of northern Gangetic Plains of India: Weed growth, yield benefits and economic profitability

Cited by 2 publications

References 38 publications

Cover crop and herbicides can control purple nutsedge (Cyperus rotundus L.) and increase crop yields in conservation agriculture-based crop rotations

Cover crop and herbicides can control purple nutsedge (Cyperus rotundus L.) and increase crop yields in conservation agriculture-based crop rotations

RETRACTED: Low rate of biochar with nitrogen fertilizer improved rice yield and economic benefits in rainfed lowland rice production system

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