Compared with the higher fertility field,the amount of fertilizer N and soil N absorbed by flue-cured tobacco was higher at the earlier stage.
结果表明,在高低土壤肥力条件下,烤烟吸收的土壤氮量多于吸收的肥料氮量,烤烟吸收的氮素18。
Research on the Relationship between the Application of Nitrogen and Phosphorus Fertilizer and the Character of Rice Yield
氮磷肥料与水稻产量性状关系的研究
Methods for determination of nitrogen,phosphorus and potassium in fertilizer and some practical experiences
肥料中氮、磷、钾的检测方法与实践经验
The Release and Transport of NP from Coated Fertilizers and the Law of Absorption and Utilization by Crop in Soil;
土壤中包膜肥料氮磷释放运移及作物吸怍利用
The Study on New Technology of Using Fertilizer Nitrogen and Phosphorus Efficiently;
氮、磷化学肥料高效利用新技术探索研究
Study on NPK Fertilization Effect and Optimum Application Rate for Rapeseed in Hubei Province
湖北省油菜氮磷钾肥施用效果及肥料推荐用量研究
Influence of N,P and Organic Matter of Fertilizers on Heavy Metals in Soil and Its Application
肥料中氮磷和有机质对土壤重金属的影响及治污中的应用
The effect of sugar beet root yield under assortative applying with N,P,K in the Northwest of Hebei Province
冀西北地区氮磷钾肥料配合施用对甜菜根产量的效应
Effect of Different NPK Fertilizers Cooperating Application on Yield and Quality of High Starch Maize;
氮磷钾肥料配施对高淀粉玉米产量和品质的影响
boron zinc superphosphate fertilizer
硼锌过磷酸石灰肥料
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。
Relationship between the Contents of N.P.K.and Water Supply and Fertilizer in Summer Soybean
夏大豆植株氮、磷、钾含量与水肥的关系
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
The Effect of NPK Fertilizer Application Amount on the Main Rice Quality;
氮磷钾肥不同用量对稻米品质的影响
The Effect of Spraying Npk Fertilizer on the Content of Protein and Fat in Soyben;
喷施氮、磷、钾肥对大豆品质的影响
Studies on Nitrogen,Phosphorus and Potassium for Mulation Apply Fertilizer of Hubei Maidong;
湖北麦冬氮、磷、钾优化配方施肥研究
Effect of Nitrogen, Phosphorus, and Potassium on Yield and Quality of Sophora Flavescens
氮、磷、钾肥对苦参产质量影响的研究
Effects of Nitrogen and Phosphate Fertilizer on Isoflavone Yield of Red clover
氮磷肥对红三叶中异黄酮产量的影响
The Effect of Formula Application on Yield of Liaodan 121,a Introduced Maize Variety
氮磷钾肥配施对辽单121产量的影响