Effects of Mixed Sowing of Chinese Milk Vetch (Astragalus sinicus L.) and Rape on Rice Yield and Soil Physical and Chemical Properties

Research on World Agricultural Economy Pub Date : 2022-03-04 DOI:10.36956/rwae.v3i1.483

Qiliang Hu, Binjuan Yang, Na Li, Ning Liu, Shu-jiang Guo, Guoqin Huang

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Abstract

In order to explore the effects of Chinese milk vetch and rape mixed sowing on rice yield and soil fertility, and select the best planting mode, five different ratios of Chinese milk vetch and rape mixed sowing were designed to study the effects of different ratios on rice yield, soil physicochemical properties and soil fertility in 0-10 cm, 10- 20 cm and 20-30 cm layers. Grey correlation analysis of soil nutrient and yield was carried out by using grey system theory. The influence of different soil layers on soil chemical properties was greater than physical properties. The effect on shallow soil is greater than that on deep soil. Mixed sowing of Chinese milk vetch and rape improved soil comprehensive fertility in all soil layers, and rice yield was the highest in 2M2R treatment. pH value had the greatest effect on actual rice yield, followed by available potassium. Therefore, mixed sowing of Chinese milk vetch and rape could significantly increase the yield of early rice and soil nutrient content, and the pattern of “1/2 Chinese milk vetch +1/2 rape-early rice-late rice” had the best effect.

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黄芪与油菜混播对水稻产量及土壤理化性质的影响

为了探讨紫云英与油菜混播对水稻产量和土壤肥力的影响，选择最佳种植模式，设计了5种不同比例的紫云英与油菜混播，研究了不同比例在0-10 cm、10- 20 cm和20-30 cm土层上对水稻产量、土壤理化性质和土壤肥力的影响。运用灰色系统理论对土壤养分与产量进行了灰色关联分析。不同土层对土壤化学性质的影响大于物理性质的影响。对浅层土壤的影响大于深层土壤。紫薇与油菜混播提高了各土层的土壤综合肥力，水稻产量以2M2R处理最高。pH值对水稻实际产量影响最大，速效钾次之。因此，紫薇与油菜混播能显著提高早稻产量和土壤养分含量，以“1/2紫薇+1/2油菜-早稻-晚稻”模式效果最好。

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来源期刊

Research on World Agricultural Economy

CiteScore

0.70

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0.00%

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