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Soil nutrients research 土壤养分研究
RESEARCH ON THE CHANGES OF SOIL NUTRIENTS IN THE FiELDS OF SHANXI AGR.UNI. 山西农业大学农作站土壤养分变化浅析
Movement of soil nutrient of wheat field in arid desert area. 沙漠地区麦田土壤养分运动特征。
A layer loss in soil profile is a sign of soil nutrient loss. 土壤剖面中A层的流失是土壤养分流失的标志。
Soil nutrient and water have a great spatiotemporal heterogeneity. 在森林土壤中;养分和水分具有很大的时间和空间异质性.
Title： Research on soil nutrient released from rice straw buried in deep soil layer by rotocultivator and the effect of yield promotion in paddy fields. 期刊：浙江大学学报（农业与生命科学版）--2000/03关键词：稻田；机械秸秆深施；养分释放；
To improve work efficiency, bagged soil nutrient management should be fixed. 为提高工作效率，营养袋装土应采用定额管理。
Effects of Soil Nutrients on Plasticity of Floral Characteristics in Iris japonica Thunb. 土壤养分对蝴蝶花的花形态可塑性的影响。
Integrated evaluation of soil nutrients in modern agricultural demonstration garden of Dongyang county. 东阳万亩园区土壤养分综合评价研究
Dynamics of Soil Nutrients during Natural Recovery Process of Abandoned Farmland in Huailai Basin,Hebei Province. 怀来盆地弃耕地自然恢复过程中土壤养分动态
The differences of soil nutrients might be related to soil texture and application rate of fertilizer. 各调查点土壤养分含量之间的差异与施肥量和土壤质地有关。
The subarea of soil nutrients could provide the theoretical basis for subarea management in crop fertilization. 摘要土壤养分分区可为作物施肥分区管理提供理论依据。
Regression analysis found that clay content was more important in the situation of low pH for conservation of soil nutrients. 研究显示,土壤黏粒含量对土壤养分的保持能力在低pH条件下比在高pH条件下显得更为重要。
Fertilizer applications were investigated and soil nutrients were determined under Cabernet Sauvignon cultivar in Changli County of Heibei Province. 摘要试验采用实地调查和土壤测定的方法，研究了河北省昌黎县赤霞珠葡萄产区土壤养分和施肥状况。
The accumulation speed of soil nutrients in higher density stands was higher while low density stands had negtive effect on the nutrient accumalation. 较大密度的林分林地土壤养分的累积速度较快，而较小密度林分不利于土壤养分的累积。
The relations between soil dehydrogenase activity and soil nutrients of wetland in Yellow River Delta were studied through path analysis. 摘要运用通径分析法研究黄河三角洲冲击平原湿地土壤中氧化还原酶活性与土壤养分的关系。
Multiple variable indicator Kriging method is also proved to be an alterative for integrated evaluation of soil nutrients. 同时也证明了多变量指标克里格法在土地养分状况的综合评价中应用的可行性。
Results showed that both soil salt accumulation and acidulation in topsoil were evident and the amounts of main soil nutrients are increased. 结果表明，随着连作年限的增加，温室土壤盐分表聚和酸化现象明显，土壤主要养分含量有增加的趋势。
The spacial distribution of soil nutrients was studied at Hongta district of Yuxi city,Yunnan province by applying GPS and GIS technique. 摘要：采用GPS和GIS技术研究了云南省玉溪市红塔区植烟土壤养分分布状况和施肥分区。
Lions and other predators control the populations of African herbivores, which in turn influence the distribution of plants and soil nutrients. 狮子和其他食肉动物也能控制非洲食草动物的族群数量，间接影响植物和土壤养份的分布情形。