您要查找的是不是：
- Hedgerow intercropping is an effective mode of agroforestry for soil and water conservation, soil fertility improvement and multi-purpose management of sloping lands in mountainous regions. 摘要植物篱种植模式是一种有效的山区水土保持、土壤改良以及多种经营的耕作模式。
- organic soil fertility improving material 有机培肥
- soil fertility improved 培肥地力
- It's an effective way to maintain soil fertility. 这是保持土壤肥力的一个有效办法。
- How do earthworms influence soil fertility? 蚯蚓如何影响土壤肥力?
- Effects of Organic Soil Fertility Improving Material in Black Soil on Soil Productivity and Fertility 黑土有机培肥对土地生产力及土壤肥力影响研究
- EFFECT OF CONTOUR HEDGEROW SYSTEM OF NITROGEN -FIXING TREES ON SOIL FERTILITY IMPROVEMENT OF DEGRADED SLOPING AGRICULTURAL LANDS 固氮植物篱改善退化坡耕地土壤养分状况的效果
- The soil fertility shows a decrease trend in cornpea rotation. 玉米、豆轮作，土壤养分均呈下降趋势。
- Influence of thinning on soil fertility in artificial forests. 抚育间伐对人工林土壤肥力的影响。
- The Impact of Soil Fertility on the Yield of Phyllanthus Emblica L. 土壤肥力对余甘子产量的影响。
- 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。
- Strip check space varies with plot slope, soil fertility and irrigation. 条畦宽度随地块坡度、土壤肥力和灌溉而变化。
- The paddy?upland system increased clay dispersion content and soil fertility. 水旱轮作可增加土壤黏粒含量,提高高沙土肥力水平;
- The status of soil aggregates is an important factor affecting soil fertility. 土壤团聚体和水稳性团聚体的状况是影响土壤肥力的一个重要因素。
- Because of the and improvement of soil fertility aeration,the absorption of N, P, and K nutrients by rice plant was improved in same manner. 而且由于土壤肥力的提高以及土壤通气状况的改善,也促进了水稻对N、P、K养分的吸收。
- Application of Integrated Fertility Index Method in Evaluating Changes in Soil Fertility. 应用指数和法对潮土农田土壤肥力变化的评价研究。
- Soak of billabong broken bits makes straw fertilizer improved soil, improve wholesome ambient conditions, gained benefit of good economy, zoology, society. 沼渣沤制秸秆肥改良土壤,改善卫生环境条件,取得了良好的经济、生态、社会效益。
- Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge. 城市污泥对退化森林生态系统土壤的人工熟化研究。
- Manure and potassium fertilization improved the absorption of N, P and K nutrients and significantly increased both yield and quality of strong gluten wheat. 但砂姜黑土肥力水平仍然不高，必须依靠大量施肥才能获得高产。
- Effect of long-term fallow and cultivation on soil fertility in rice-based cropping system. 水旱轮作地区土壤长期休闲与耕种的肥力效应。
