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通过4a田间小区试验研究了定位施肥对甘蓝产量、品质和经济效益的影响.结果表明,不同年份各施肥处理对产量和品质的影响有所差异,尤以品质的差异较大.4a甘蓝平均产量,与CK(无肥处理)相比,不同肥料组合对甘蓝有显著的增产作用,产量提高6.7%～37.4%,以N30P15K20Ca150处理的产量最高,其次为N30P15K20B0.2和N30P15K20处理;与OPT处理相比,在N30P15K20(OPT)基础上同时增施磷钾肥产量降低1.5%,而配施钙、硼产量分别增加9.6%和3.8%.2003-2006年,与CK相比,肥料养分组合可提高甘蓝氨基酸、粗蛋白、Vc、可溶性糖含量,改善其品质.与OPT处理相比,在OPT基础上同时增施磷、钾肥,对甘蓝氨基酸和Vc含量有提高作用,而配施钙肥提高氨基酸、粗蛋白和Vc含量,以氨基酸含量提高量最大(达10.0%),增施硼肥可提高的甘蓝氨基酸、Vc和可溶性糖含量.各处理中以OPT处理对降低甘蓝硝酸盐含量效果最佳.综合产量、品质和经济效益,N30P15K20Ca150为甘蓝优质高产最佳养分组合.
The effects of different fertilization treatments on the yield, quality and economic efficiency of cabbage were studied through field experiment in field 4a.The results showed that the effects of different fertilization treatments on yield and quality were different in different years, especially the difference in quality.4A average yield of cabbage , Compared with CK (no fertilizer treatment), different fertilizer combinations had a significant increase of yield of cabbage, the yield increased by 6.7% ~ 37.4%, N30P15K20Ca150 the highest yield, followed by N30P15K20B0.2 and N30P15K20 treatment; OPT treatment phase Compared with CK, the yield of P and K fertilizers decreased by 1.5% at the same time on the basis of N30P15K20 (OPT), while the yield of calcium and boron increased by 9.6% and 3.8% respectively. From 2003 to 2006, Amino acid, crude protein, Vc, soluble sugar content and improve its quality.Compared with OPT treatment, the application of phosphorus and potassium fertilizer on the basis of OPT increased the content of amino acids and Vc in cabbage, The contents of crude protein and Vc increased by 10% in the amino acid content, and the contents of amino acids, Vc and soluble sugar in cabbage increased with boron fertilizer. OPT treatment had the best effect on decreasing the nitrate content in cabbage. Comprehensive Yield, quality and economic efficiency, N30P15K20Ca150 Brassica high-yield optimal nutrient combination.