摘要:水稻是世界上最重要的粮食作物之一,在亚洲包括中国在内的粮食生产中具有十分突出的地位。秸秆还田是秸秆利用的最直接的方式,不仅能解决环境污染问题,还能促进农田养分的循环利用和环境的可持续发展。 农作物秸秆是农业生产过程中产生的废弃物,它含有氮、磷、钾、中量元素、微量元素、有机质等,是重要的有机肥资源。然而近年来,农村天然气等化石燃料的普及导致大量的秸秆被弃置或露天风少,不仅浪费资源还污染环境。本文通过田间大区试验探究在麦秸还田时,不同的水分管理对稻田土壤微生物特征的影响,为在麦秸还田时达到最优的水肥利用率提供理论依据。29142 毕业论文关键词:麦秸还田;水分管理;土壤微生物;可持续发展
Effects of Wheat Straw Returning to Field and Water Management on Microbial Characteristics in Paddy Field
Abstract:Rice is one of the most important food crops in the world and has a very prominent position in grain production in Asia, including China. Straw return is the most direct way of straw utilization, not only can solve the problem of environmental pollution, but also promote the recycling of farmland nutrients and the sustainable development of the environment. Crop Straw is a waste produced in the agricultural production process, it contains nitrogen, phosphorus, potassium, the amount of elements, trace elements, organic matter, is an important organic fertilizer resources. However, in recent years, the popularity of fossil fuels such as natural gas in rural areas has led to the abandonment of large quantities of straw or less open air, not only wasting resources but also polluting the environment. , Straw in the soil microbial production of hydrolase under the mineralization, decomposition of a large number of small molecules and anions and cations, increase soil mineral nutrient content. In the field of microbial production of oxidoreductase, the synthesis of high stability humus substances, thereby increasing the soil organic matter content of fertility .In this paper, through the field experiment to explore the wheat straw to the field, the different water management on the paddy soil microbial And to provide the theoretical basis for the optimal utilization of water and fertilizer in wheat straw.
Key words:Wheat straw; water management; soil microbe; sustainable development
目 录