摘要
采用土壤盆栽试验和室内分析相结合的方法,研究不同施肥处理对2个白菜品种在不同生育阶段的物质积累及N、P、K养分的吸收规律。结果表明:施肥能显著地提高白菜产量和干物质积累,以有机无机肥配施效果最佳;大白菜干物质的积累和对N、P、K养分的吸收主要集中在移栽后第30～60 d,小白菜则在移栽后的15～45 d。2个白菜品种对N、P2O5、K2O吸收的质量比为1∶0.36∶3.13。有机无机肥配施能提高土壤中有效磷和速效钾的含量,增强土壤的供肥能力。
Through using pot experiment of soil and indoor analysis to study the effects of different fertilizer treatments on accumulation of dry matter and the law of nutrient（N,P and K） uptake of cabbage in different growth stages.The results indicated that the fertilizing can raise the yield and accumulation of dry matter of cabbage obviously,in which the combined application of organic fertilizer and chemical fertilizer had the best effect;the accumulation of dry matter and N,P,K uptake of Chinese cabbage and pakchoi were mainly in the 30~60 d and the 15~45 d after transplanting,respectively;the mass ratio of N∶P2O5∶K2O in Chinese cabbage and pakchoi was 1∶0.36∶3.13.Therefore,the combined application of organic fertilizer and chemical fertilizer can increase the content of available phosphorus and available potassium and improve the nutrient supplying capacity of soil.
出处
《湖南农业科学》
2011年第1期32-36,共5页
Hunan Agricultural Sciences
基金
国家科技支撑计划项目(2006BAD17B08-03)
关键词
白菜
不同施肥处理
干物质积累
养分吸收规律
土壤速效养分
cabbage
different fertilizer treatments
accumulation of dry matter
law of nutrient uptake
soil available nutrients
