摘要
在施用等量紫云英条件下进行了不同化肥用量对早稻养分吸收和干物质积累影响的田间试验。试验结果表明:在翻压紫云英22500kg/hm2的条件下,早稻田可减少化肥用量20%～60%,但是以减少化肥用量20%的效果最佳,能有效促进水稻植株地上部对N、P、K养分的吸收与积累,同时有利于地上部干物质的积累。
A field experiment was carried out to study the effects of applying mineral fertilizer reasonably on the nutrient absorption and dry matter accumulation of early rice under the condition of applying equivalent green manure(Astragalus sinicus).The results indicated that the application rate of chemical fertilizer could be reduced by 20%-60% under the condition of applying 22500 kg/hm2 A.sinicus,and reducing 20% chemical fertilizer had the best effect because it could effectively promote the overground part of rice plants to absorb N,P and K nutrient and accumulate the dry matter.
出处
《江西农业学报》
CAS
2010年第10期13-14,23,共3页
Acta Agriculturae Jiangxi
基金
农业部公益性行业(农业)科研专项(200803029)
