作物系数是计算作物需水量必不可少的参数。
Crop coefficient is the basic parameter for determining crop water requirement.
结合气象观测数据反演作物系数，最后计算月蒸散发量。
With aid of observed climate data, FAO Penman-Monteith equaption is used to calculate the reference ET and crop coefficient.
作物系数与地被植物抗旱性的影响最小，关联度为0.6204。
The influence of Crop coefficient is the smallest, Correlation is 0.6204.
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.
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。
The synthetic crop coefficients are evaluated by analyzing the experiment data on water requirement of rice in plastic film mulched dryland (RPFMD).
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
在其他时间里作物系数均在两种作物系数之间变化，这是产生作物需水量降低的主要原因。
In other time crops coefficient between the two crops of change, it is to produce a crop of the main reason rop water requirement.
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.
茎秆系数可作为同一品种作物间，抗倒伏能力的评价指标。
Stem coefficient is a physics parameter that evaluates crop-stem lodging resistance in the same kind of crop.
运用基于实码的加速遗传算法(RAGA)优化求解了春小麦作物水模型的敏感系数。
The sensitive indexes of crop water model for spring wheat has been get with RAGA.
根据旱地作物长期田间试验数据，论述了旱作农业生产中作物产量波动性是一个规律性现象，并用波动系数加以表述。
Based on the data of a long term field experiment of dryland crops, this article points out that yield fluctuation, expressed in fluctuating coefficient, is a regular phenomenon in dryland farming.
同一农药在不同作物上的消解速度也有明显差异，主要与作物比表面积、生长系数等因素有关。
The degradation speed of same pesticide was also differed from various species of crops obviously due to the comparative surface area of crops growth factor etc.
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;
冠层对太阳漫射光的消光系数由作物株型确定，对直射光的消光系数由株型和太阳位置确定。
The extinction coefficient for diffuse and direct radiation is given by crop canopy architecture and solar position.
为评估增雨对农业的影响，利用自然降水对农作物产量贡献的积分回归，获得降水对农作物贡献系数。
For assessment effect of cloud seeding for agriculture, contribution coefficient of precipitation to crop production was obtained using integral regression of precipitation.
依据四元联系数态势排序原理，提出了作物品种区域试验多因素态势排序分析方法。
According to the principle of situation sequent for four-element connection number, analysis method of multifactor situation sequent in variety regional test was put forward.
通过对作物水分胁迫系数和氮素胁迫系数的模拟计算，可以求出最佳的灌水、施肥时间和各个时间段分别的灌水、施肥用量。
Through the calculation of the water stress index and N stress index, when and how much irrigation and fertilization can been decided.
首次根据试验资料就水稻作物的缺水敏感系数进行研究计算，得出了十分有意义的结果。
The rice sensitivity coefficient to drought is calculated using the data from experimentation for the first time, and some significant results are obtained.
首次根据试验资料就水稻作物的缺水敏感系数进行研究计算，得出了十分有意义的结果。
The rice sensitivity coefficient to drought is calculated using the data from experimentation for the first time, and some significant results are obtained.
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