肥料中氮源类型对结球甘蓝产量及生物学产量的效应

Effect of Nitrogen Sources on the Biomass and Commercial Yield of Heading Cabbage

通过肥料中氮源类型即有机和化学氮的配比试验，研究了６种肥料处理对结球甘蓝生物学产量和商品产量的影响，比较了不同肥料处理下干物质积累规律，并开展了结球甘蓝的储存试验。结果表明：当氮源同时来源于化学肥料和有机肥料时，结球甘蓝的商品产量、生物学产量及干物质积累量均较高，经济系数及耐储性能也有明显改善。

The experiment of nitrogen sources,mainly organic sources and chemical sources,in the biomass and commercial yield of heading cabbage (Brassica oleracea) was conducted in Hefei.The dry matter and fresh matter weight of different fertilizer treatments were compared and the stored tests of cabbage also carried out.The results shown that the combination of organic nitrogen and chemical nitrogen was highlight,the maxmium biomass and maxmium economical yield was 4.33×10 5kg/m 2 and 2.69 ×10 5kg/m 2 respectively when the 120kg/m 2 chemical nitrogen,and 60kg organic nitrogen per ha were applied.