滴灌条件下配方施肥对冀北甘蓝生产的影响
Chinese Agricultural Science Bulletin(2016)
Abstract
为优化甘蓝施肥量,确定其施肥分配比例以及施肥时期、施肥方法,在张家口坝上地区对甘蓝进行了滴灌施肥试验.结果表明,与传统施肥相比,配方施肥增加了甘蓝土壤硝态氮、速效磷、速效钾含量和电导率,可有效保持土壤的持续肥力;可溶性固形物与可溶性糖含量分别提高5.8%、48.6%,硝酸盐含量降低了39.0%,甘蓝品质得到显著提高;单位面积产量毛重、净重分别增加44730、37815 kg/hm2,增幅分别为24.7%、29.9%,增产效果显著.
MoreKey words
traditional fertilization,formulated fertilization,Brassica oleracea L.
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