3) synthetic nitrogen fertilizer application
施用化学氮肥
1.
,synthetic nitrogen fertilizer application,no-tillage and conservation tillage,irrigation,straw return,manuring and sewage sludge application) for net mitigation based on their soil carbon sequestration and impacts on the GHG leakage.
综述总结了目前较受重视的一些农田措施(包括施用化学氮肥、免耕和保护性耕作、灌溉、秸秆还田、施用禽畜粪便以及污灌)的土壤固碳潜力,温室气体泄漏和净减排潜力研究成果。
5) optimized fertilization
优化施肥
1.
In this experiment the optimized fertilization for Cymbiduim was carried out by saturated design of N,P,K.
试验研究了大花蕙兰优化施肥技术,在不同施肥水平和不同NPK比例下,测定了叶面积增长速率(LAIR)、叶绿素含量(Chl)、光和速率(NPR)和单枝小花数量(FNPR)。
2.
The results show that the treatments of optimized fertilization and high water-fertilizer were beneficial to the increasing of water absorption ability of crop root,to the increasing of the fertilizer N use ratio by crops,to the increasing of crop yield and quality,and to the decreasing of soil alkalescency.
结果表明:优化施肥和高水肥措施有利于提高作物根系吸水能力、增加作物对土壤氮素的利用、提高耕地作物产量和品质、抑制土壤碱性增加。
3.
Therefore,30% of nitrogen fertilizer could be expected to be saved by optimized fertilization,and postponing N application is a rational and practicable N fertilization method for reducing AV in winter wheat-summer corn rotation system.
采用密闭室间歇通气法研究优化施肥条件下华北冬小麦/夏玉米体系的土壤氨挥发损失。
6) Optimum fertilization
优化施肥
1.
Optimum fertilization could reduce the accumulation and loss of soil nitrate nitrogen and protect the groundwater and environment.
田间小区试验结果表明,优化施肥能提高作物产量及氮肥利用率,节约氮肥38。
补充资料：施用
1.施行﹐实行。 2.使用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条