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- Mr. Smith gave a lesson on how to improve soil . 史密斯先生讲了一堂如何改良土壤的课。
- He gave a lesson on how to improve soil. 他讲了一堂如何改良土壤的课。
- He studied how to improve soil condition. 他研究如何改良土壤。
- He studied how to improve soil conditions. 他研究怎样改善土壤条件。
- Mr. Smith gave a lesson on how to improve soil. 史密斯先生讲了一堂如何改良土壤的课。
- The professor studied how to improve soil conditions. 这位教授研究如何改良土壤状况。
- A green manure is a crop grown mainly to improve soil fertility. 种植绿肥作物主要是为使土壤更加肥沃。
- Wow. So this stuff could help feed people and improve soil. 哇,看来这种物质能够提高产量,还能改善土壤。
- A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients. 堆肥腐烂有机体的混合物,如树叶或粪便,用来改善土壤结构并增加土壤养分
- West Indian forage plant cultivated in southern United States as forage and to improve soil. 在美国南部栽培的一种西印度的饲料植物,也用于改善土壤质量。
- Rational soil fertilization could improve soil nutrition and leaves nutritious level. 本实验的施肥试验表明,合理的土壤施肥可以提高土壤营养和叶片营养水平。
- Robinia pseudoacacia is the best tree kind to improve soil of re-vegetation in the coal waste piles. 在同一植被恢复过的矸石山上刺槐林对土壤的改良作用最好。
- The plow pan profile constitution of the "flat type" helps to improve soil structure. “平面型”犁底层剖面构造有利于改善土壤结构。
- Can resist droughts, preserve water and nutrition, improve soil quality, save water and fertilizer increase crop output. 能保水抗旱、提高水肥利用率、改良土壤、提高作物产量。
- Vetiver grass is found to increase adhesion and internal friction angle, enhance shear strength and improve soil stability. 通过试验分析发现,香根草护坡可以提高土的黏聚力和内摩擦角,从而提高土的抗剪强度,进而增加土壤稳定性。
- Results show that no-tillage with straw cover (NTS) can improve soil structure property,soil organic carbon content,and soil water infiltration. 结果表明,免耕覆盖可以改善土壤结构性能,增加土壤有机碳含量,从而提高水分入渗能力。
- Crop rotation:The successive planting of different crops on the same land to improve soil fertility and help control insects and diseases. 轮作:在同一块土地上连续种植不同的作物以提高土壤肥力并帮助控制昆虫的生长和疾病的蔓延.
- Results show that cultivation can improve soil physical structure and induce a higher probability for interflow occurrence. 结果表明,(1)耕作能有效改善土壤结构,增加降雨入渗量,并增大壤中流发生机率;
- The result was,mulching could hold soil water, improve soil physics characters and fertility conditions,which is good for Maize to grow,and it increased the yield and revenue. 结果表明,覆盖种植有利于蓄水保墒,改善土壤物理性状,培肥地力,为玉米生长创造了良好的生态环境,有利于增产增收;
- This results could provide a theory evidence to carry out rotation of cereal crops and grass,develop house herding husbandry,improve soil fertility and crop output for... 研究结果表明,土壤贫瘠是限制怀来盆地作物生产力提高的最重要的限制因子,其次是温度与水分因子。