Manure has become a minor source of nitrogen in all major agricultural countries.
在主要的农业国家动物粪便已经不是氮肥的主要来源。
The liquid manure is still a major source of environmental pollution, although the way of separating solid and liquid manure reduces the environmental effect in certain extent.
虽然采取固体粪便与液体粪水相分离的方法在一定程度上减少了对环境的影响，但液体粪水仍是污染环境的主要来源。
During the time of traditional agriculture in Guangdong, the main manure source of mountainous areas was ash, while in the plains, the main manure source was the river filth.
传统农业时代广东地区山区和平原分别以获取灰粪和泥肥作为主要肥源。
Studies were conducted on the changes of physicochemical quality of sawdust substrates using urinate as manure source during fermentation and the effect on growth of pepper seedling.
研究了以尿素为氮源的锯末基质发酵腐熟过程中理化性质的变化以及对辣椒幼苗生长发育的影响。
Results indicated that the contribution of brute manure, domestic pollution source, runoff and food-supplied fishpond to water pollution load was 43.81%, 29. 91%, 22. 43%and 3. 85%, respectively.
研究结果表明，当前各类农业非点源污染对水体的污染负荷贡献率为：畜禽粪尿43.81%，生活污染29.91%，农田径流和渗漏22.43%精养鱼塘3.85%。
Results indicated that the contribution of brute manure, domestic pollution source, runoff and food-supplied fishpond to water pollution load was 43.81%, 29. 91%, 22. 43%and 3. 85%, respectively.
研究结果表明，当前各类农业非点源污染对水体的污染负荷贡献率为：畜禽粪尿43.81%，生活污染29.91%，农田径流和渗漏22.43%精养鱼塘3.85%。
应用推荐