The dynamics of various soil nitrogen pool after nitrogen fertilizer application at wheat seedling stage was studied by pot experiment and 15n trace technique.
应用盆栽试验和15n标记技术研究了小麦苗期施入N肥后土壤不同N库的动态。
Mixing application of organic and inorganic fertilizer is favorable to increase amount of soil organic matter and to improve soil physical environment.
有机肥与化肥配合施用，土壤有机质呈增加趋势，有利于土壤物理环境的改善。
Ammonia volatilization appears regular change in the condition of the same amount of urea applied to the soil with different treatments of phosphorus fertilizer application.
当等量尿素追施入不同施磷处理土壤后，氨挥发速率出现规律变化。
To investigate the changes of soil hydrolase activities under application of corn straws with manure, N and P fertilizer, a field experiment was conducted.
通过田间试验，进行了玉米秸秆与厩肥、N肥和P肥配合施入农田后土壤中水解类酶活性变化的研究。
Based on the balance equation of soil nutrient and the law of the minimum limiting factor, some general principles are proposed for making fertilizer application tactics.
由土壤养分平衡方程和最小限制因子定律，讨论了因时因地制定施肥策略的必要性。
The pollution of soil, water and atmosphere caused by dung pollution of animal breeding and inappropriate application of chemical fertilizer has received more and more attention.
畜牧业养殖产生的粪便污染和不恰当施用化肥而导致土壤、水质和大气污染已经引起人们越来越多的关注。
The results showed that, (1) the sustainable index of soil fertility was affected by different treatments of fertilizer application.
结果表明：（1）不同施肥处理对土壤肥力可持续性指数影响不同；
Analyses of soil pollution show that it is mainly associated with application of pesticides with Hg and garbage fertilizer.
分析了菜地土壤汞污染的主要原因，可能与使用含汞农药和生活垃圾肥有关。
The key to fertilization technology lies in increasing investment of organic fertilizer, paying attention to microelement fertilizer's application and extending fertilizer formula after soil testing.
四川盆周山区猕猴桃施肥技术的关键在于大力增加有机肥的投入、重视微肥的有效施用、推广测土配方施肥。
The nurture role of different fertilizer application strategies was discussed by the measurements of the C and N dynamic of soil microbial biomass in wheat field.
通过测定不同施肥制度下小麦土壤微生物量C、N的动态变化，探讨了不同施肥制度对小麦土壤的培肥效应。
Long term application of the fertilizer will supplement the soil with organic matter and the heavy metals in the fertilizer wil not pollute the soil environment.
长期施用，可补充土壤中有机质，且肥料中重金属元素不会引起菜地环境的污染。
The yield increase of K fertilizer was quite high at two rates of nitrogen application, and it closely relative to the content of available K in soil and potassium application rate.
钾肥的增产效率在两种氮肥水平下都较高，单位钾肥的增产量与土壤有效钾含量及施钾量呈极显著负相关；
As to the application method of budding fertilizer, the soil surface broadcast was better than foliar spray.
促芽肥的施用方法以田面施为佳，叶面施用效果较差。
In the total rate, the contribution of variety change, cultural improvement, the application of fertilizer, and soil productivity was 54%, 36%, 15%, and 27% respectively.
其中，品种更换、栽培技术改进、施肥水平与地力变化和三因子综合作用对产量增长的贡献分别占54％、36％、15％和27％。
Thus, to improve soil fertility in this farm, the main measures should be the application of efficient organic manure and chemical fertilizer, adjusting plant structure and planting green manure.
因此，大量施用有机肥，合理施用化肥，调整种植结构，扩种绿肥是培肥该农场土壤的主要措施。
The increase of amount of fertilizer application was the main reason for the result of soil nutrient increase from the planting structure changes.
施肥量的提高是种植结构变化导致土壤养分提高的主要原因。
The influence of application of organic and nitrogen fertilizer on the content of alkali hydrolysable N in fertilities soil was studied.
对设施土壤中长期施有机肥与氮肥对土壤中碱解氮含量的影响进行了研究。
Application of N fertilizer significantly increased the amount of residual nitrate-N, and affected its distribution in the soil profile.
施用氮肥可明显增加土壤硝态氮残留数量，并影响其剖面分布；
The yield increase of K fertilizer for wheat was closely related to the content of available K in soil and potassium application rate.
小麦钾肥的增产效应与土壤有效K含量和施K量有极大关系。
The factors affecting soil fertility are: river harnessing, fertilizer application, and the changes in cropping system and land utilization after the adoption of high yield hybrid verities.
影响肥力变化的因子包括河流治理、施肥、高产品种使用后种植制度和土地利用程度的变化等等。
Study was carried out on the effects of application of sulphur fertilizer on yield and quality of winter wheat in sand soil.
在砂质土壤条件下，研究了追施硫肥对冬小麦产量和品质的影响。
Zeolites application can increase fertilizer use efficiency and nutrient preserving capability of soil.
土壤施用沸石后，可以提高土壤保肥能力，活化土壤中难溶性磷，改良土壤结构。
Effect of different basal-dressing application methods and different amounts of fertilizer on NO emission from the soil grown with winter wheat was studied with the technique of static chamber.
用静态箱法对冬小麦不同基肥施用方式(表施、深施)和不同施用量下的土壤NO排放通量进行了研究，结果表明：肥料在土壤中的位置对NO排放通量的影响非常显著。
Effect of application of K fertilizer and wheat straw to soil on crop yield and status of soil K in plough layer under different planting systems was studied.
研究施钾和秸秆还田对华北地区不同种植制度下作物产量和耕层土壤钾素状况的影响。
According to the experimental results, application of both Aquasorb-fertilizer and liquid membrane could increase soil moisture and enhance the growth amount of Armeniaca vulgaris Lam. in short time.
结果表明：保水肥、液态地膜同时使用，在短期就可以明显提高土壤含水量，增加树木生长量。
Available potassium and slow-released potassium contents were decreased, and total potassium content was changed insignificantly in the soil of mono-application of nitrogen fertilizer.
单施氮肥的土壤，速效钾、缓效钾含量均降低，全钾含量变化不明显。
Results showed that soil total nitrogen and organic nitrogen fractions were significantly influenced by long-term application of chemical fertilizer and manure.
结果表明，长期施用化肥和有机肥对土壤全氮和土壤有机氮组成有显著影响。
Suggesting the combined application of organical and chemical fertilizer and straw returning is the most effective measure to in crease soil organic matter.
有机、无机物料配施和秸秆还田是快速提高南方红壤地区不同母质土壤有机质含量的重要措施。
Suggesting the combined application of organical and chemical fertilizer and straw returning is the most effective measure to in crease soil organic matter.
有机、无机物料配施和秸秆还田是快速提高南方红壤地区不同母质土壤有机质含量的重要措施。
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