total water requirement of crop 作物总需水量
experiment of crop water requirement 作物需水量试验
The dynamic of the agricultural soil water is the key issue to regulate the crop water requirement.
农田土壤水分动态是作物需水管理的关键。
The synthetic crop coefficients are evaluated by analyzing the experiment data on water requirement of rice in plastic film mulched dryland (RPFMD).
分析了覆膜旱作水稻需水量试验资料，得出覆膜旱作水稻各生育阶段综合作物系数。
Based on the analysis of field experimental data, crop water requirement and crop coefficient of straw-mulched summer maize are evaluated with dual coefficient approach recommended by FAO.
采用FAO推荐的双作物系数法计算了秸秆覆盖条件下夏玉米的作物系数。
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