摘要
对控释肥料(CRFs)的大蒜肥效进行了田间试验,结果表明:控释肥料与普通肥料(OFs)相比,在肥料施用量低和中等时具有提高肥效、增加产量的作用,大蒜的生物量分别增加80.5%和51.1%,蒜苔和蒜头产量分别增加180%、100%、和69.2%、29.3%,而高用量时产量反而降低;在比普通肥料(300kg/hm2)减少一半用量的情况下,控释肥料(150kg/hm2)处理的大蒜生物量、蒜苔和蒜头产量分别增加15.6%、61.5%和11.6%。经过大蒜的整个生长季,控释肥料处理的根际土壤有效养分仍能维持较高的水平,控释肥料能显著提高大蒜体内的氮磷钾含量及肥料的养分利用率。
The effects of controlled release fertilizers(CRFs) on garlic growth were studied.The results showed:Compared to ordinary fertilizers(OFs),in lower and medium fertilizing amount, controlled release fertilizer can improve the garlic growth,increase the fertilizer efficiency and the biomass of garlic respectively.In 150kg/ha fertilizing amount of controlled release fertilizers, the biomass,stalk and bulb yield was 15.6%,61.5% and 11.6% compared with those of 300kg/ha ordinary fertilizers(OFs).After garlic growing season,the available nutrients in soil rhizosphere can contain higher level.
出处
《土壤通报》
CAS
CSCD
北大核心
2003年第2期120-124,共5页
Chinese Journal of Soil Science
基金
国家"948"项目(批准文号971053)
山东省中青年科学家奖励基金资助
关键词
控释肥料
大蒜
肥效
养分利用率
Controlled release fertilizer(CRFs)
Garlic
Fertilizer efficiency
Nutrient use efficiency(NUE)
