1.
Study on the Nitrogen Intensive Gradient Affecting the Nitrate Accumulation in Chinese Cabbage
氮肥集约度对小白菜硝酸盐积累的影响
2.
Potted experiments were used to study the influence of nitrogen intensive gradient on the nitrate content in Chinese cabbage.
利用盆栽试验,研究了氮肥集约度对小白菜中硝酸盐含量的影响。
3.
Effects of Nitrogen Fertilization of Different Intensive Cropping Systems on Environment in North China Plain
华北平原集约化农作区不同种植体系施用氮肥对环境的影响
4.
Fertiliser nitrogen must be a sensibly used tool and not an addiction in intensive grassland management.
在集约的草地管理中，氮肥必须是合理使用的一种手段，而不是一种嗜好。
5.
NITROGEN UTILIZATION EFFICIENCY AND FATE OF FERTILIZER UNDER DIFFERENT TRANSPLANTING DENSITY
水稻不同移栽密度的氮肥效应及氮素去向
6.
Approach to the reform mode of property right system for medium-sized nitrogenous fertilizer enterprises;
中型氮肥企业产权制度改革模式探讨
7.
Effects of Nitrogen Management on Rice Nitrogen Uptake and Nitrogen Concentrations in the Leachate from Rice Field
氮肥运筹对水稻氮素吸收和稻田渗漏液氮素浓度影响
8.
Effects of the Amount of Nitrogen and Density on Yield,Quality and N-absorbing Utilization Efficiency of Rice "Fengyouxiangzhan";
氮肥与密度对丰优香占产量、品质及吸氮特性的影响
9.
Effects of Soil Salinity and Fertigation Method on Growth and Fertilizer N Use-efficiency of Cotton under Film Drip Irrigation;
土壤盐度和滴灌施肥方式对棉花生长与氮肥利用率的影响
10.
Effects of Density and Nitrogen Amount on Yield and Quality of High Starch Maize;
密度及氮肥量对高淀粉玉米产量与品质的影响
11.
Study on N-application of the Three Kinds of Cultivating System of Rice for Small,Middle and Big Shoot;
小、中、大苗三种栽培制度水稻的氮肥运筹研究
12.
Under Different Planting Density Effect of Nitrogen Fertilizer on Potato Production
不同种植密度下氮肥对马铃薯产量构成的影响
13.
The influence of C/N ratio on NH_3 emission and compost maturity
碳氮比对堆肥过程NH_3挥发和腐熟度的影响
14.
Effect of Nitrogen Application and Planting Density on Forage Yield and Quality in Maize(Zea mays L.)
氮肥与密度对青贮玉米产量和品质的影响
15.
Effects of nitrogen fertilization and planting density on Ageratina adenophora growth and its competitive traits.
氮肥和种植密度对紫茎泽兰生长和竞争的影响
16.
Effects of Density and Nitrogen Fertilizer Applied Ratio on the groups quality of High Gluten Wheat
密度、氮肥基追比例对强筋小麦群体质量的影响
17.
As regards fertility status, almost all soils are deficient in N and about 90% are low to medium in P.
至于肥力状况，几乎所有土壤缺氮，约90%土壤低磷或中磷。
18.
Study on Temporal and Spatial Variation of Soil Nitrogen and Phosphorus in an Intensive Managed Phyllostachys Praecox Stands;
集约经营雷竹林土壤氮、磷时空变化的研究