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- soil nutrient deficiency 土壤养分缺乏
- 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.
- The principal nutrient deficiency affecting fermentation is a lack of usable nitrogen. 营养缺乏症,影响发酵的主要是缺乏可用氮气。
- The yellowing or whitening of normally green plant tissue because of a decreased amount of chlorophyll, often as a result of disease or nutrient deficiency. 缺绿病正常时为绿色的植物组织因为叶绿素数量减少而变黄或变白的现象,常常由于疾病或养分不足所致
- 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。
- Root exudates play an important role in relieving nutrient deficiency and determining the number of rhizosphere bacteria. 根系分泌物的产生机制多样,组成成分复杂,影响因素繁多。
- Balanced nutrient application was beneficial to N accumulation in seeds, but nutrient deficiency was inclined to accumulate N in straws. 均衡的养分供应有利于N在子粒中积累,而养分缺乏的处理,秸秆中N含量相对较高。
- In several cases, new nutrient deficiency problems that have been holding back responses to N,P and /or K have been found. 许多试验中,我们发现了因某种元素的缺乏,影响了氮、磷、钾肥效的发挥,并发现温室中看到的养分缺乏亦在大田中出现。
- The yellowing or whitening of normally green plant tissue because of a decreased amount of chlorophyll,often as a result of disease or nutrient deficiency. 缺绿病正常时为绿色的植物组织因为叶绿素数量减少而变黄或变白的现象,常常由于疾病或养分不足所致。
- Shrinking cotton production in Anhui province due to nutrient deficiency is leading to shortages in cotton supplies and has recently threatened the provincial textile industry. 安徽省由于养分缺乏造成的棉花生产的萎缩正在引起棉花供应的短缺,最近并威胁着省内的纺织工业。
- Effect of natural zeolite on soil nutrient bioavailability and soil chemical properties. 沸石对土壤养分生物有效性和土壤化学性质的影响研究。
- The nutrient deficiency of Anthurium scherzerianum was studied. The typical symptom of limp and leaves lacking of certain kind of big element were observed and analyzed. 摘要对红掌亚利桑那品种进行了缺素症的研究,分别观察并分析了植株和叶片在缺乏某一种大量元素的情况下,表现出来的典型症状。
- The study provided a reference for improving the model of soil nutrient transfer in runoff on the loess slope. 该研究为进一步完善黄土坡面径流养分迁移模拟模型提供了参考。
- Arid and semiarid areas are main areas of food production in our country.Water shortage and nutrient deficiency are two key factors that restricted crop production in these areas. 干旱和半干旱地区是我国重要的农业生产区,水分不足和养分缺乏是制约其生产发展的两个关键因素。
- The relationship of soil nutrient cycling characteristics with productivity of terrace millet on hilly loess plateau. 黄土丘陵区梯田谷子养分循环特征与生产力关系的研究。
- In most western countries, serious nutrient deficiencies are rare. 在大多数西方国家,严重的营养不良很少见。
- We also raised the potential feedback by soil nutrient availability, which may also influence the BEF relationships. 最后 ,我们提出生物多样性_生态系统生产力之间的关系还可能受到土壤元素可利用性的负反馈作用的影响
- The soil nutrient contents and adsorption experiments were completed by Agro Service International Inc.(USA). 土壤养分含量和吸附试验由国际农业服务公司(美国)完成。