复种面积: area of double of triple croppingarea on which several crops are grown a yearmultiple cropping acreagemultiple cropping areasmultiple-cropping area
增加复种面积: extend the area of double or triple cropping
农业: agriculture; farming◇农业八字宪法 eight-point charter for agriculture (soil improvement, rational application of fertilizer, water conservancy, improved seed strains, rational close planting, pl
