The experiment assumed two kinds of the rice soil of different fertility level.
试验是采用肥力水平不同的两种水稻土进行。
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。
The field experiments were carried out to evaluate the rice yields, economic benefits and soil fertility of ryegrass-rice and wheat-rice cropping systems under different nitrogen fertilizer rates.
通过田间试验研究了不同氮肥水平黑麦草—水稻和小麦—水稻两种种植模式的水稻产量、经济效益和对土壤肥力的影响。
应用推荐