养分供应与土壤肥力的关系以及低地水稻的肥料管理

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通过增加无机肥料的数量,改善管理条件和有机无机结合完整的养分管理,可能使水稻产量有更大幅度的增加。世界上的一些地区,由于利用了新的生产技术,水稻产量获得了增长。随着集约化种植的不断发展,需要更多的养分去补充和支持这样高的生产率,例如一季低地水稻大约在115天内每公顷生产9.8吨稻谷和8.2吨稻草,要吸收218公斤氮,31公斤磷,258公斤钾,9公斤硫。印度和中国在耕作制度中(包括有粮食作物在内)成功地采用了绿肥,中国所采用的维持集约化高产栽培的是豆科和谷类作物轮作。以水稻为基础的耕作制度中,有机和无机营养资源和它们的养分管理也是完整的营养。因此保持和提高低地水稻为基础的耕作制度的土壤肥力是研究整体营养的关键。本文概述了近年来亚洲国家以水稻为基础的耕 By increasing the amount of inorganic fertilizers, improving management conditions and organic and inorganic integrated nutrient management, it is possible to increase rice production more significantly. In some parts of the world, rice production has increased due to the use of new production technologies. As intensive farming continues to evolve, more nutrients are needed to supplement and support such high productivity. For example, a seasonally lowland rice produces 9.8 tons of rice and 8.2 tons of straw per hectare in about 115 days, absorbs 218 kilograms of nitrogen and 31 kilograms Phosphorus, 258 kilograms of potassium, 9 kilograms of sulfur. India and China have succeeded in using green manures in the farming system (including food crops), and China has maintained a focus on high-yielding cultivation of leguminous and cereal crops. In rice-based farming systems, organic and inorganic nutrient resources and their nutrient management are also intact nutrients. Therefore, maintaining and improving the soil fertility of lowland rice-based farming systems is the key to studying holistic nutrition. This article provides an overview of paddy-based farming in Asian countries in recent years
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