1.
Effects of Partial Mineral Nitrogen Substitution by Organic Fertilizer Nitrogen on the Yields of Rice Grains and Their Proper Substitution Rate
有机肥料氮替代部分化肥氮对稻谷产量的影响及替代率
2.
The optimum ratio of N:P:K should be 2. 1:1: 0. 4.
化肥氮磷钾比例应是2.1∶1∶0.4。
3.
INVESTIGATIONS ON NITROGEN LOSSES FROM FERTILIZERS APPLIED TO FLOODED CALCAREOUS PADDY SOIL
石灰性稻田土壤上化肥氮损失的研究
4.
Nitrate content in plant tissue was increased with the percentage of chemical nitrogen in the mixture of chemical fertilizer and AFR.
沼肥中配施化肥 (简称沼化肥 ) ,随化肥氮比例增加 ,油菜硝酸盐含量增加。
5.
Dynamics of nitrogen in double-rice paddy soil under application of chemical fertilizer combined with manure
化肥有机肥配合施用下双季稻田氮素形态变化
6.
A Study on Nitrogen Transformation and NH_3 Emission During Composting;
堆肥化过程中氮素转化和NH_3挥发研究
7.
Mechanism of Soil N Supply in Paddy Soil and Reaching Optimal N Application for Rice;
稻田土壤供氮机理及水稻氮肥优化施用研究
8.
Studies on the Nitrogen Transform and Reducing Nitrogen Loss during Composting;
堆肥氮素转化及原位减少氮素损失的研究
9.
Effect of Nitrogen Application on Nitrogen Assimilation in Strong Gluten Wheat Cultivated on Sand Beach Soil of Huanghe River
氮肥运筹对黄河沙滩地优质麦氮素同化的影响
10.
Where they do use chemical fertilizer, they tend to use nitrogen only, thereby mining the soils.
使用化肥时，只施用氮肥，从而其它养分逐渐耗竭。
11.
Characteristic of Nitrogen Use Efficiency of Central Food Crops under Long-term Fertilization;
长期施肥下我国粮食作物氮肥利用率变化特征
12.
Effect of Chemical Fertilizer Applied Combing with Organic Manure on Yield of Rice and Nitrogen Using Efficiency
化肥有机肥配合对水稻产量和氮素利用的影响
13.
The application impact of bioorganic manure plus nitrogen fertilizer on rice yield
生物有机肥配施氮素化肥对水稻产量的影响
14.
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
15.
Studies on the Method of Eluviationing and Controlling Nitrogenous Fertilizer Pollution;
氮素化肥淋溶污染与控制方法的研究
16.
Study on the Effects of Nitrogen, Phosphorus and Potassium Optimum Fertilization on Export Broccoli Production;
出口青花菜氮磷钾优化施肥效应研究
17.
Study on the Effect of Fertilizing Management on Nitrogen Transition in Phaiozems;
培肥方式对黑土氮素转化影响的研究
18.
A Study of Fertilization and Nitrous Oxide Losses on Loess Soil;
黄土性土壤施肥与氧化亚氮排放研究