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。
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.
单作物系数法比双作物系数法简单，建议在进行生育期作物需水量计算时采用单作物系数法；
Single crop coefficient approach is simpler than dual crop coefficient approach. It is suggested to using single crop coefficient approach for calculating crop water requirements of growth stages.
研究农作物农艺性状整齐度指标的方法主要有变异系数法、变异系数的倒数法和整齐度系数法三大类。
Variance coefficient method (CVm), reciprocal CVm and regularity coefficient method were used to study the regularity degree of agronomic traits.
结果表明：高稳系数法是一种简便有效评价作物品种丰产稳产性的好方法，较其他两种方法客观、可靠；
The result shows: the high and stable coefficient is a simple and effective evaluation method prior to the others;
结果表明：高稳系数法是一种简便有效评价作物品种丰产稳产性的好方法，较其他两种方法客观、可靠；
The result shows: the high and stable coefficient is a simple and effective evaluation method prior to the others;
应用推荐