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首页> 外文期刊>Soil Science and Plant Nutrition >Comparison of paddy soil fertility under conventional rice straw application versus cow dung compost application in mixed crop-livestock systems in a cold temperate region of Japan
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Comparison of paddy soil fertility under conventional rice straw application versus cow dung compost application in mixed crop-livestock systems in a cold temperate region of Japan

机译：常规稻草秸秆施用水稻土壤肥力与牛粪堆肥在日本寒气地区混合作物畜牧系统中的牛粪堆肥应用

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After the rice harvest in Japan, rice straw (RS) is usually cut by combine harvester and incorporated into the soil to improve its fertility. In mixed crop-livestock systems, however, RS is collected and used as livestock feed, and cow dung compost (CDC) is then applied to the soil. This system utilizes the residual organic matter from both rice production and livestock husbandry to make each product. CDC application is also considered to improve the fertility of paddy soil. However, the nutrient input from CDC and the effect of CDC application on soil fertility vary among regions and/or soil types. We compared soil fertility between RS application (RS treatment, avg. 32 years) and RS removal plus CDC application (CDC treatment, avg. 21 years) in 79 paddy fields in Mamurogawa town, Yamagata Prefecture, a cold temperate region of Japan, and measured the nutrient contents in the applied RS and CDC. The total C content of RS was significantly higher than that of CDC, whereas the N, P, K, and Si contents of CDC were significantly higher than those of RS. However, there was no significant difference in paddy soil fertility - as measured by soil organic C, total N, CEC, available N, P, and Si, exchangeable K, Ca, and Mg, base saturation percentage, pH, and bulk density - between the treatments. The soil fertility of most fields was adequate by RS or CDC treatment. Thus, leaving RS in paddy fields or removing it and then adding CDC to the paddy fields has a similar effect in maintaining adequate soil fertility for single rice production or rice-livestock production systems.
机译：在日本的大米收获后，稻草（RS）通常通过结合收割机切割并纳入土壤中以改善其生育率。然而，在混合作物 - 牲畜系统中，收集RS并用作牲畜饲料，然后将牛粪堆肥（CDC）施加到土壤中。该系统利用水稻生产和畜牧业的残留有机物来制造每种产品。 CDC申请也被认为是改善水稻土的生育能力。然而，CDC的营养输入和CDC应用对土壤肥力的影响在地区和/或土壤类型之间变化。我们比较了RS申请（RS治疗，AVG。32年）和RS去除加入CDC申请（CDC治疗，AVG。21年）在Mamuroga镇，Yamagata县，日本寒气地区，以及日本寒气地区的79个稻田，测量应用RS和CDC中的营养物质。 CR的总C含量明显高于CDC，而CDC的N，P，K和Si含量显着高于Rs。然而，水稻土壤肥力没有显着差异 - 通过土壤有机C，总N，CEC，可用N，P和Si，可更换K，Ca和Mg，基础饱和百分比，pH和散装密度来测量 - 治疗之间。大多数田地的土壤肥力足以通过卢比或CDC治疗。因此，在稻田中留下Rs或去除它，然后将CDC添加到稻田中具有类似的效果，在维持单米生产或稻米畜牧生产系统的充分土壤肥力方面具有类似的效果。

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