CAJ | 학술논문

根据天津武清地区设施菜田施肥状况，进行不同缓控释氮肥在设施菠菜上的试验探究，分析不同氮肥在菠菜的长势、产量、收益等方面的差异及对土壤环境的影响。结果表明，施用促根剂包膜尿素的菠菜667 m2产量和667 m2净收益最高。对于不同氮肥，无包膜尿素的硝态氮含量在土层表现上明显下移；有包膜尿素中，除高分子聚合物包膜尿素，其余尿素包膜中均有活性物质，起到增效作用，施用前期效果好，但高分子聚合物包膜尿素的肥效期长，施用后期还会继续释放。因此，选用适当缓控肥料非常必要。本研究对提高氮肥利用率与不同作物增产增效具有重要意义。
근거천진무청지구설시채전시비상황，진행불동완공석담비재설시파채상적시험탐구，분석불동담비재파채적장세、산량、수익등방면적차이급대토양배경적영향。결과표명，시용촉근제포막뇨소적파채667 m2산량화667 m2정수익최고。대우불동담비，무포막뇨소적초태담함량재토층표현상명현하이；유포막뇨소중，제고분자취합물포막뇨소，기여뇨소포막중균유활성물질，기도증효작용，시용전기효과호，단고분자취합물포막뇨소적비효기장，시용후기환회계속석방。인차，선용괄당완공비료비상필요。본연구대제고담비이용솔여불동작물증산증효구유중요의의。
It is great significance that would study the application and effect of different slow-release nitrogen(N) fertilizers. This paper described the research progress on fertilizers coated and vegetable development status in Wuqing district, and carried out with different slow-release N fertilizers to explore the spinaches, then analyzed the data and discussed the different fertilizers in spinach growing, production, income and other differences, and the impact on soil environment after applying fertilizers. The results showed that application of coated urea with promoting root could receive the highest spinach yield and net return. For non-coated urea, the content of nitrate in soil moved significantly down;In addition to polymer coated urea, other coated urea was both the remaining active substances and application of good effect early, but polymer had a long coated urea efficiency period, the application would continue to be released lately. So, the choice of appropriate slow-release fertilizers was very necessary. This study was important for improving nitrogen utilization efficiency and increasing efficiency of different crops.