摘要
通过培养试验和田间定位试验证明，施用化学肥料可极显著地提高水稻植株各部位生物学产量，增加水稻残留于土壤中的根茬数量。一般稻谷产量在５０００～７５００ｋｇ／ｈｍ２条件下，其根茬数量达１８２６～２８５９ｋｇ／ｈｍ２。在北方寒冷稻作区。
The results in cultural experiment and fixed field test showed that chemical fertilizer extremely increased the all part′s biomass output of rice, especially the root and stubble which remained in soil. Normally, under the condition of rice output 5000￣7500kg/hm 2. the root and stubble can reach about 1826￣2859kg/hm 2 In this case, the organic matter in water land will remain stable or increase slightly in northern and cold rice zone.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
1997年第2期62-67,共6页
Journal of Jilin Agricultural University
关键词
水稻
根茬
生物学产量
化肥
rice
root and stubble
biomass output
soil organic matter
