High rainfall variety and poor management of soil and water are the most important and limiting factors in crop system in this region.
年度降雨分布的极度不均和落后的土壤及水分管理措施是制约该地区农田生产力的主要因素。
According as the systematic approach for soil nutrient status, the nutrients limiting factors of the young oil-tea soil in Yichun of Jiangxi were studied.
利用土壤养分状况系统研究法，对江西宜春油茶幼林土壤进行了养分限制因子的研究。
In Huaibei area the unsuitable application of wheat variety, bad climate soil conditions, lower fertility and extensive cultivation were major limiting factors for high wheat yield in large areas.
对近几年淮北小麦生产现状的分析表明，小麦品种使用不当、不良气候、土壤肥力偏低以及栽培粗放是当前淮北小麦大面积生产存在的主要问题。
Its cultural experiments at many plots have shown that the temperature and the fertility of soil are limiting-factors for its growth.
本文通过多点栽培试验表明，影响新银合欢生长的限制因子是温度和土壤肥力。
In the soil the concentration of soluble phosphorus is very scarce, which is one of main factors limiting plant growth.
土壤中低浓度的有效磷水平成为限制植物生长发育的主要因素。
In the soil the concentration of soluble phosphorus is very scarce, which is one of main factors limiting plant growth.
土壤中低浓度的有效磷水平成为限制植物生长发育的主要因素。
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