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- 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。
- 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。
- conservation of soil nutrient 贮蓄土壤养分
- They are researched a little on part of soil conservation action, soil moisture, soil nutrient, and the underground portion of intercrop. 提出间套作在栽培措施方面应注意的关键问题：合理安排间套作作物的播种期和移栽期；
- 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。
- Our community is a leader in the conservation of wildlife. 我们社区在野生动物保护方面走在前头。
- 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。
- 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。
- Making use of character of fabric structure and combing with the features of protected soil, the texture design technique of geotextile for the conservation of soil is researched. 结合被保持土壤性质,利用织物的结构特征,研究了用于土粒保持用土工织物的密度设计方法。
- Who discovered the conservation of energy? 谁发现了能量守恒？
- The activities of soil Urease and Sucrase had no significant correlation with soil nutrient. 相关分析表明，高寒草甸的土壤酶活性与营养成分含量之间相关不显著。
- Effects of Site Condition on Growth and Spatial Differences of Soil Nutrient in Populus simonii Carr. 与相似的文献。
- The effects of soil nutrient level to the number of fruit per genet and the fruit set per genet in Iris japonica Thunb are not significant. 蝴蝶花单株果实数和单株座果率对养分水平的反应差异不显著。
- The technology of soil nutrient map quick mapping is studied taken suitable area for Chinese gooseberry in Zhouzhi County, Shannxi province as a case. 本项目以陕西省周至县猕猴桃适生区土壤养分调查制图为例,进行了土壤养分图快速制图制作技术的技术流程研究。
- Therefore, in the hill of the Loess Plateau, converting cropland to forestland and grassland is good for improving the conditions of soil nutrient. 因此，在黄土高原丘陵区，坡地退耕还林，恢复植被，可以有效改善土壤养分状况。
- Most people have come to accept the need for conservation of natural resources. 现在大多数人已认识到保护自然资源的必要。
- Abstract : The soil nutrient, soil microorganisms and soil enzyme activities of soil under five different stands in Alar were studied. 摘要 ： 对塔里木河上游果林地和胡杨林地土壤养分、微生物数量和酶的活性变化进行了研究。
- Hu K L, Li B G, Lin Q M et al.Spatial variability of soil nutrient in wheat filed[J].Transactions of the CSAE, 1999, 15(3): 33-38. [9]胡克林;李保国;林启美;等.;农田土壤养分的空间变异特征[J]
- You must master the law of conservation of energy. 你必须掌握能量守衡定律。
- There is a need for the conservation of trees. 有必要保护树木。
