摘要
采用小四轮拖拉机、铁牛－650和JL－1065联合收获机在松软的春小麦种床上压地1遍，苗期测定基本苗、生物量和播深一致性，收获后测定产量等，与免压处理进行比较。结果表明：在干旱的气象条件下，3种压实处理的春小麦产量分别比免压处理低6．28％，21．44％和23．37％；农业机械造成的土壤压实对春小麦生长发育的不利影响十分明显。
Small wheeled tractor, Tieniu-650 tractor and JL-1065 combine harvester were used respectively to compact the freshly tilled soil before drilling spring wheat. The plant population, biomass, uniformity of crop establishment and grain yield after these treatments were measured and compared with those in uncompacted treatment. The results showed that in drought growing season, the grain yield of compacting treatments were reduced by6. 28%, 21. 44% and 23. 37% respectively than that of the unwheeled treatment. The effects of soil compaction by the agricultural machinery on the growth of spring wheat is very harmful.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1998年第4期39-43,共5页
Journal of China Agricultural University
基金
中澳国际合作项目
关键词
土壤
压实
田间管理
春小麦
soil
compaction
wheat production
field management
