Effects of winter green manure cultivation on rice yield and soil fertility in paddy field

Yang, Biao; Guo-qin, Huang; Chao, Wang; Qing, Lin; Ning, Xu

doi:10.3724/sp.j.1011.2013.01209

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…It is believed that the combination of organic and inorganic sources is one of the efficient measures for achieving high rice yield (Liu et al, 2016) and reducing chemical fertilizer application and GHG emissions (Yang et al, 2015; Liu et al, 2015). Crop straw and green manure contain many nutrients and are important organic fertilizer resources (Wang et al, 2010; Ma et al, 2017), which can increase soil organic matter content, replenish soil nutrients, and maintain farmland fertility (Yang et al, 2013). China has abundant crop straw resources, with an average annual production of 7.6 to 8.2 million tons (Han et al, 2016; Pan et al, 2015), accounting for about 25% of the world's total straw (Jiang et al, 2015).…”

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confidence: 99%

Rice Yield and Greenhouse Gas Emissions Affected by Chinese Milk Vetch and Rice Straw Retention with Reduced Nitrogen Fertilization

et al. 2019

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Straw retention and fertilization management can affect rice yield and greenhouse gas (GHG) emission in paddy field. To investigate the effect of leguminous green manure and straw retention plus nitrogen (N) fertilizer on rice yield and GHG emissions, field experiments were conducted from 2017 to 2018 and four treatments were designed, including the treatments of Chinese milk vetch (Astragalus sinicus L.) and rice (Oryza sativa L.) straw retention with reduced chemical N fertilizer application amount named RA (6000 kg hm−2 rice straw plus 102 kg hm−2 N fertilizer during early and late rice respectively), RB (6000 kg hm−2 rice straw plus 87 kg hm−2 N fertilizer during early and late rice season respectively), RC (6000 kg hm−2 rice straw plus 72 kg hm−2 N fertilizer during early and late rice season respectively) and control CK (winter fallow, without straw retention, 120 kg hm−2 N fertilizer during early and late rice season respectively). The results showed treatments RA, RB, and RC significantly increased the early rice yield by 15.79, 21.27, and 13.60% (P < 0.05), and RA and RB significantly increased the annual yield by 14.76 and 15.79% (P < 0.05) compared with control CK. For CH4 cumulative emissions, only RB had no significant impact on it (P > 0.05); treatments RA, RB, and RC had no significant effect on N2O cumulative emissions (P > 0.05). Meanwhile, treatments RA and RC significantly increased GWP and greenhouse gas emission intensity (GHGI) (P < 0.05) of CH4 and N2O, but the difference between RB and control CK was not significant (P > 0.05). Therefore treatment RB had the best effect on rice production and GHG mitigation in paddy fields. Core Ideas Straw and vetch retention with reduced N fertilizer were studied on yield and GHGs in double‐cropped rice. Chinese milk vetch and rice straw retention plus reduced N fertilizer significantly increased rice yields compared with control. Effect of Chinese milk vetch and rice straw retention plus 87 kg of N fertilizer on GWP and GHGI was not obvious. Straw and vetch retention can help offset N fertilizer to increase yield and reduce costs, waste, and environment pollution.

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confidence: 99%

Rice Yield and Greenhouse Gas Emissions Affected by Chinese Milk Vetch and Rice Straw Retention with Reduced Nitrogen Fertilization

et al. 2019

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“…This is consistent with a previous study showing rapeseed and milkvetch have no effect on rice yield (Yu et al 2014). However, other studies have showed positive effects of rapeseed and milkvetch on rice yield (Fan et al 2009, Yang et al 2013). These different effects on grain yield may be also influenced by agricultural management, such as fertilizers, crop residues tillage, fire, and flooding (Whitbread et al 2003, Zong et al 2007, Schipanski et al 2014).…”

Section: Discussionmentioning

confidence: 97%

Effects of Winter Cover Crops on Rice Pests, Natural Enemies, and Grain Yield in a Rice Rotation System

Luo

Wang

Yang

et al. 2019

Journal of Insect Science

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Rotations that include winter cover crops are widely used in agricultural systems and can provide numerous agroecological and economic benefits. However, the effects of winter cover crops on arthropod diversity, specifically rice pests and related natural enemies in rice rotation systems, are still largely unknown. We compared the effects of three winter cover crops, rapeseed, Brassica napus L. (Brassicales: Brassicaceae), Chinese milkvetch, Astragalus sinicus L. (Fabales: Fabaceae), and garlic, Allium sativum L. (Asparagales: Amaryllidaceae), on arthropods species diversity and evenness, densities of populations of major rice pests and major natural enemies, and grain yield in an experimental double cropping rotational rice field in Jiangxi Province, China. We did not observe any effects of cover crops on arthropod species diversity and evenness. The presence of prior cover crops also had no effect on the number of plants infested by the two major rice pests, Chilo suppressalis Walker (Lepidoptera: Pyralidae) and Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae). Our study did not show any effects of rapeseed and Chinese milkvetch on grain yield. However, grain yield was increased in the garlic treatment. Our results suggest that although the winter cover crops we tested in our study do not affect the number of rice plants infected by major rice pests, they do not negatively affect the arthropod community and grain yields in rice rotation systems. Therefore, planting of winter cover crops may increase agricultural land utilization and have an overall economic benefit in rice rotational systems.

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“…At present, under the conditions of combined application of organic and inorganic fertilizers, a large number of studies have been carried out on rice yield at home and abroad, and the results consistently show that the combined application of organic and inorganic fertilizers significantly increases rice yield compared with single application of chemical fertilizers [14][15][16][17][18][19] . Studies shown under the conditions of milk vetch and chemical fertilizer reduction, rice yield and economic benefits are significantly higher than the yield of single application of chemical fertilizer [20] . Among them, the rice yield of milk vetch combined with chemical fertilizer R 1 N 2 treatment is different from that of single application.…”

Section: Effect Of Returning Straw To Field On Rice Yieldmentioning

confidence: 95%

Effects of Returning Straw and Milk Vetch on Rice Growth and Greenhouse Gas Emissions

Zhang

Guo-qin

2021

Res. in Ecol.

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The effects of different nitrogen application levels on rice yield and greenhouse gas (NO2, CH4) emissions from rice fields under the combined action of straw and milk vetch. Two treatments were set up in the main area of this experiment: R0 (no straw returned to the field, 0); R1 (amount of straw returned to the field under normal conditions, 6000kg·hm-2). Before turning the straw back into the field, use a circular knife to cut the straw into 10~13cm.And 3 kinds of nitrogen application treatments in the sub-district: N1 (no nitrogen application, 0), N2 (nitrogen application, 15 kg·hm-2), N3 (nitrogen application, 30kg·hm-2), two-factor cross-combination,and a non-nitrogen control CK, total of 7 treatments. The results showed that in 2017, early rice R1N2 treatment increased the most obvious yield, which was 32.44% higher than CK, and late rice R1N1 treatment increased the most significantly, which was 17.91% higher than CK. CH4 emissions is positively correlated with the amount of straw returned to the field, while the amount of N2O is the opposite.The N2O emission flux was highest in the treatment of R1N3, and the CH4 emission flux was the highest in the treatment of R1N2.

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Effects of winter green manure cultivation on rice yield and soil fertility in paddy field

Cited by 8 publications

References 2 publications

Rice Yield and Greenhouse Gas Emissions Affected by Chinese Milk Vetch and Rice Straw Retention with Reduced Nitrogen Fertilization

Rice Yield and Greenhouse Gas Emissions Affected by Chinese Milk Vetch and Rice Straw Retention with Reduced Nitrogen Fertilization

Effects of Winter Cover Crops on Rice Pests, Natural Enemies, and Grain Yield in a Rice Rotation System

Effects of Returning Straw and Milk Vetch on Rice Growth and Greenhouse Gas Emissions

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