N fertilizer

Influence of herbicides on denitrification loss of nitrogen fertilizer and emission of N_2O.;

除草剂对氮肥反硝化损失与N_2O排放的影响

Study on the residual effect of nitrogen fertilizer in spring wheat cultivation in semiarid areas;

半干旱地区春小麦氮肥后效的研究

Effects of combined application of organic and inorganic nitrogen fertilizer on the soil nitrogn leaching and the growth of leaf-used lettuce;

有机无机氮肥配施对土壤氮淋失及油麦菜生长的影响

Study on the Effects of Nitrogen Application and Planting Density on the Yield of Jingdan 28;

不同氮肥和密度水平对京单28产量效应的研究

Effects of interaction of photoperiod and nitrogen on activities of enzymes of carbon and nitrogen metabolism of Huanong No.1 ensilage corn;

光周期与氮肥互作对华农1号青饲玉米碳氮代谢相关酶的影响

The Effect of Nitrogen on Nitrate Leaching and Absorption under Spring Corn in Dry Arears of North China;

北方旱作条件下玉米施用氮肥对氮吸收和淋溶的影响

Global scope assessment of China's nitrogenous fertilizer industry;

对我国氮肥工业的全方位评价

Interactive effects of super absorbent polymer and nitrogenous fertilizer;

土壤保水剂与氮肥的互作效应研究

Competitive Strategic Analysis on China Nitrogenous Fertilizer Industry;

中国氮肥行业市场竞争战略分析

The border effect and utilization rate of N fertilizer as base under wheat intercropped with spinach;

小麦间作菠菜的边际效应与基施氮肥利用率

Four treatments were designed as the control (without urea incorporation); low N fertilizer level(0.

鉴于氮肥施用对农田CH4排放的影响还有很大不确定性,室外盆栽试验于2 0 0 2年在南京农业大学实施。

In this paper,the concept related to ~(15)N application were introduced and interpreted,and the studies on N fertilizer research,N cycling and agricultural environment protection since 1980 were reviewed in detail.

本文介绍了15N的相关概念,列举了20世纪80年代以来15N在氮肥研究、氮素转化研究以及农业环境保护中的应用进展,阐明了应用15N的新技术已解决的问题,以及将要解决的问题,并展望了性核素示踪技术的应用前景。

Effect of N-fertilizer Levels on Physiobiochemistry in the Middle and Late Growth Stage of Super Hybrid Rice Ⅱ Youhang 1;

氮肥水平对超级稻Ⅱ优航1号生长中后期生理生化特性的影响

Effect of Application Level of N-fertilizer on Nutritional Values of Corn Stalks;

氮肥追施量对玉米秸秆营养价值的影响

Effect of N-fertilizer Application Patterns on Yield and N-fertilizer Efficiency of Corn;

氮肥施用方式对玉米产量和肥效的影响

Effects of Different Ratios of Base N to Dress N Fertilizer on Nitrate Content in Chinese Cabbage and the N Use Efficiency

氮肥不同基肥、追肥比例对小白菜硝酸盐含量及氮肥利用率的影响

high-clearance liquid nitrogen applicator

高地隙液体氮肥注施机

Effect of controlled-release nitrogen fertilizer on growth and fertilizer nitrogen use efficiency of double rice in southern China

控释氮肥对双季水稻生长及氮肥利用率的影响

The Study on Fate of Fertilizer Nitrogen in Different Soils in Shanxi Province;

山西省不同土壤上氮肥氮的去向研究

Effects of Nitrogen Application Time on Carbon Assimilate and Nitrogen Translocation and Nitrogen Use Efficiency of Summer Maize

施氮时期对夏玉米碳氮运转及氮肥利用的影响

Experiment Research of New Biological Denitrification Process to Low C/N Wastewater of Nitrogenous Fertilizer Plant

氮肥厂低碳氮比废水生物脱氮新工艺试验研究

Relationship between soil nitrate,nitrogen balance and utilization in rainfed land

旱地土壤硝态氮与氮素平衡、氮肥利用的关系

Studies on Nitrogen Uptake Characteristics, Nitrogen Use Efficiency, Real Time Nitrogen Management, and Site Specific Nutrient Management of Irrigated Rice;

水稻氮素营养特性、氮肥利用率与实时实地氮肥管理的研究

Effects of Different Nitrogen Fertilizer Application Rate and Different Topdressing Way on Yield and Efficiency for Maize Zhongyu 15

氮肥用量和追肥方式对玉米中玉15产量和氮肥利用效率的影响

Wheat fertilization mainly in basal, all organic manure, P and K and half of N fertilizers are applied at plowing, the rest N fertilizer dressed in jointing stage along with irrigation.

小麦施肥主要为基肥，全部有机肥、、和一半氮肥翻地时施入，其余氮肥在拔节期随灌水追施。

Studies on Effects of the Application Rate of Chemical Nitrogen Fertilizer on Yield and Quality and Nitrogen Fertilizer Utilization Ratio of Vegetables;

化学氮肥用量对蔬菜产量、品质及氮肥利用率影响的研究

Effects of the Basic and Tillering Nitrogen Amount on Population Quality and Nitrogen Use Efficiency in Rice;

基蘖氮肥用量对水稻群体质量影响及氮肥高效利用机理研究

Effects of Nitrogen Application on Grain Yield and Quality as Well as Nitrogen Use Efficiency in Wheat cv. Yangmai 10;

氮肥运筹对扬麦10号产量品质及其氮肥利用率的影响

Absorption and Utilization of N Nutrients by Flue-cured Tobacco and Effects of Different Forms of N Fertilizer on Yield and Quality of Flue-cured Tobacco;

烤烟对氮肥的吸收利用及不同形态氮肥对烤烟产量和品质的影响

Study on the Select of Nitrogen Fertilization Models for Winter Wheat and the Effects of it on Result of Fertilizing Nitrogen;

冬小麦氮肥肥料效应模型的选择及其对推荐施氮效果的影响

Effects of Different Nitrogen Fertilizer Topdressing on Growth Characteristics and Nitrogen Use Efficiencies of Spring Maize

追施不同氮肥对春玉米生长特性和氮肥利用效率的影响

Effects of Different Ratio of Base N to Dressed N and Type of Nitrogen Fertilizer on Maize Yield and Nitrogen Use Efficiency in Fluvio-aquic Soil Region

潮土区氮肥不同基追比和种类对玉米产量和氮肥利用率的影响

The effects of coated slow/controlled fertilizer on winter wheat yield,soil Nmin and nitrogen use efficiency

包裹型缓/控释肥对冬小麦产量、土壤无机氮和氮肥利用效率的影响