... 预订旅馆的凭证 hotel voucher 氮的管理 nitrogen management 公司的管理 the conduct of the company ...
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water and nitrogen management model 水氮管理模型
water and nitrogen management 水氮管理
optimized nitrogen management 氮肥优化管理
integrated nitrogen management 氮素优化
irrigation and nitrogen management 水氮运筹
water and nitrogen management systems 水氮管理系统
water and nitrogen management pattern 最优水肥管理模式
A field trial was carried out to study the effect of optimized nitrogen management system on crop yield, biomass, N uptake, soil Nmin and N balance by comparing those of conventional nitrogen managerial system and no N fertilization control.
通过田间小区试验，以对照和传统氮肥管理体系作对比，研究优化氮肥管理体系对作物产量、生物量、吸氮量、土壤残留无机氮及氮素的表观平衡的影响。
参考来源 - 华北平原冬小麦The appropriate nitrogen management remarkably improved soybean yield.
7．适宜氮肥运筹方式提高套作大豆产量。
参考来源 - 氮肥运筹对套作大豆生长发育影响的研究A field experiment was conducted to study the effects of nitrogen management modes on yield formation and nitrogen utilization efficiency of summer maize,Zhengdan 958.
以郑单958玉米为材料,研究了氮素运筹对夏玉米产量形成与氮素利用效果的影响。
参考来源 - 氮素运筹对夏玉米产量形成与氮素利用效果的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
The concept of controlled-release nitrogen fertilizers( CRN) as a nitrogen management tool is not new.
用控释氮肥（rn）为氮素管理的一项措施已不是新概念。
Under the field experiment conditions, effects of site-specific nitrogen management(SSNM)on grain yield and grain quality of rice were studied.
在大田试验条件下，观察了实地氮肥管理对水稻产量和稻米品质的影响。
The effect of different rainfall years and different water and nitrogen management ways on winter wheat and summer maize was studied in northern part of north China Plain.
在华北平原北部研究了不同降水年型、不同水氮管理措施对冬小麦和夏玉米产量和氮素平衡的影响。
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