1.
Effect of Grazing on the Soil Reserve Nitrogen Season Dynamics of Stipa
放牧对短花针茅草原生态系统土壤贮氮季节动态的影响
2.
As most of the yield increase resulted from the imbalanced use of nitrogen, native soil P and K reserves were depleted.
不平衡施用氮肥带来的产量增加，使土壤中贮存的P、K被逐渐耗竭。
3.
nitrogen fixer
(土壤中的)固氮微生物
4.
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
5.
Impact of climate change to soil pondage in Huanxian
气候暖干化对环县土壤贮水量的影响
6.
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
7.
Contents of Active Organic Carbon, Nitrogen and Its Relationship with Nitrogen Mineralization of Soil on the Loess Plateau;
黄土区几种土壤中活性有机碳、氮含量及其与土壤氮素矿化的关系
8.
The Impacts of Soil Nitrogen Loss on Soil Properties and Environments under Soil Erosion Conditions
侵蚀条件下土壤氮素流失对土壤和环境的影响
9.
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
10.
Vegetation and Soil Carbon Storage Estimate in Southwest Quer Mountains;
雀儿山西南坡植被碳贮量与土壤有机碳贮量估算
11.
Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content.
秸秆还田增加了土壤全氮和无机氮含量。
12.
Effects of Soil and Nitrogen on Nitrogen Absorption, Distribution and Quality of Flue-cured Tobacco;
土壤与氮营养对烤烟氮吸收分配及品质影响
13.
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
14.
Effect of Nitrogen and Mineralization of Soil Nitrogen on Growth and Quality of Flue-Cured Tobacco;
氮及土壤氮素矿化对烤烟生长及品质的影响
15.
Characteristics of Soil Nitrogen Supply and Its Effect on the Nitrogen Nutrition of Flue-cured Tobacco
土壤供氮特征及其对烤烟氮素营养的影响
16.
Spring Maize Response to Soil Nitrogen Supply and Indices of Nitrogen Recommendation
春玉米对土壤供氮的反应及氮肥推荐指标研究
17.
A New Index for Nitrogen Supplying Capacity in Arid Land-Fumigation-Extraction with Chloroform
旱地新型土壤供氮力指标——氯仿熏蒸浸提氮
18.
Comparison of Determining the Soil Total Nitrogen Concentration with a Continuous Flow Injection Analyzer and Kjeldahl Method
流动注射法与凯氏定氮法测定土壤全氮的比较