摘要
通过一年3茬小白菜(Brassica chinensis)田间试验,研究了4种不同施肥模式(即不施肥、施纯化肥、化肥和猪粪配合施用(其中化肥N占80%,有机肥N占20%)、化肥和沼肥配合施用(其中化肥N占80%,有机肥N占20%)对小白菜产量及硝酸盐含量的影响。结果表明,与不施肥(对照)相比,20%的沼肥综合施肥模式(即化肥和沼肥配合施用)可极显著提高小白菜的生物学产量,增产(165.13±2.63)%,与其他施肥模式相比,小白菜产量差异不显著;与施用纯化肥相比,极显著地降低了硝酸盐的积累。因此,沼肥综合施肥模式可以在武汉地区的小白菜生产中加以推广应用。
Through field trials of three-stubble Brassica chinensis in one year, effects of 4 fertilization modes, i.e. no fertiliz- er, chemical fertilizer applied as base manure, chemical fertilizer applied half as base manure and half as additional pig ma- nure, applying chemical fertilizer（80%） and biogas manure（20%）, on yield and nitrate content of B. chinensis were studied. Results showed that compared with the control treatment, biogas manure could increase the yield of B. chinensis by （165.13＋ 2.63）% （P〈0.05） but has no difference with other models （P〉0.05）; while compared with the chemical fertilizer applied, it could decrease the concentration of nitrate thus worth being popularized in future vegetable production in Wuhan.
出处
《湖北农业科学》
北大核心
2012年第15期3201-3203,共3页
Hubei Agricultural Sciences
基金
武汉市财政示范项目(Czsf201208)
