Breeding for drought-tolerant variety is the most important way to alleviate yield reduction caused by drought stress.
培育抗旱品种是降低由于干旱导致减产的最重要也是最为根本的途径。
Combination application of mineral fertilizer and manure was the best practice to reduce N2O emission without significant yield reduction.
在产量无显著下降的情况下，有机无机配施的减排效果最好。
Among the yield components, decreases in number of panicles per pot and seed setting rate were two main reasons for the yield reduction.
在产量构成因子中，每盆穗数和结实率是影响产量的两个主要因子。
This paper discusses the types of grain yield reduction, and chooses 1998 and 2003 as representative years to study the grain yield reduction at national, provincial and county scales.
本文选取1998和2003年为典型年份，从国家、省级、县域3种尺度对中国粮食减产进行研究。
This paper discusses the types of grain yield reduction, and chooses 1998 and 2003 as representative years to study the grain yield reduction at national, provincial and county scales.
本文选取1998和2003年为典型年份，从国家、省级、县域3种尺度对中国粮食减产进行研究。
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