研究所预测，中亚玉米减产47%，水稻减产30%。
In the Middle East the institute predicts yield declines of 47% for maize and 30% for rice.
每年均有因旱灾造成的水稻减产，大旱年份，减产更多，甚至绝收。
Every year the paddy rice output always reduces because of drought. When the drought is serious, the output reduced more, even extremely.
杂草和害虫的危害是导致水稻减产的重要原因，每年由此给全球水稻生产造成的损失高达数百亿美元。
The harms of insects and weeds were an important reason for reduction of rice output, which caused the annual loss of global rice production reach to several decade billions in us dollar.
应用推荐