氮肥种类及用量对包心菜硝酸盐累积和营养品质的影响  

Effects of Different Nitrogen Fertilizer Application on Nitrate Accumulation and Nutritional Quality of Cabbage(Brassica campastris L.ssp.pekinesis)

作　　者：许超[1] 吴良欢[1] 郑寨生 孔向军 杨联丰 巨晓棠[4] 张福锁[4] 

机构地区：[1]浙江大学环境与资源学院,杭州310029 [2]浙江省金华市农业科学研究所,浙江金华321017 [3]浙江省新昌县农业技术推广中心,浙江新昌312500 [4]中国农业大学资源与环境学院,北京100094

出　　处：《科技通报》2005年第6期702-706,共5页Bulletin of Science and Technology

基　　金：国家自然科学基金项目(30370838);浙江省科技攻关项目(021102084);德国BASF公司合作项目

摘　　要：本文在田间试验条件下探讨了氮肥品种、用量及不同基肥种类对包心菜硝酸盐累积及品质的影响。结果表明:含硝化抑制剂DMPP(3,4-二甲基吡唑磷酸盐)的硫硝铵肥料(简称ASN+DMPP)与硫硝铵(ASN)、尿素(urea)相比,不仅可以提高包心菜的产量,降低NO3--N含量,还可以提高Vc、氨基酸、可溶性糖和矿质营养元素(P、K、Ca、Fe、Zn)含量。ASN+DMPP与urea相比,在金华、新昌试验点,N O3--N含量分别降低了6.1%、16.5%,而与ASN相比N O3-N鄄含量分别降低了9.4%、7.3%。适当降低氮肥用量包心菜不会减产,还可降低硝酸盐含量。A SN 80%用量水平(360kg/hm2)与100%用量水平(450 kg/hm 2)相比,包心菜NO3-N鄄含量分别降低了5.0%(新昌)、18.7%(金华)。用硫基复合肥(NPK15-15-15S)作基肥与用氯基复合肥(NPK16-16-16Cl)相比,包心菜产量、NO3--N含量没有显著差别。In this study, the influences of different nitrogen fertilizer variety, nitrogen level and basal manure on nitrate accun,ulation and quality of cabbage were investigated in field experiments. Results showed that ammonium sulphate nitrate （ASN） fertilizer with 3,4-dimethylpyrazole phosphate （DMPP） （for short ASN＋DMPP） could increase cabbage yield and decrease NO3^--N content as compared with ASN and urea. ASN＋DMPP could also increase Vitamin C （for short Vc）, amino acid, soluble sugar, and mineral nutrient element （P, K, Ca, Fe, Zn） contents in cabbage. ASN＋DMPP could decrease NO3^--N content by 6.1%, 16.5% in Jinhua and Xinchang, respectively as compared with urea, and 9.4% ,7.3% respectively as compared with ASN. Properly decreasing nitrogen level would not decrease cabbage yield, but decrease nitrate content. 80% of nitrogen level （360 kg/hm^2） could decrease NO3^--N content by 5.0%, 18.7% in Xinchang and Jinhua, respectveily as compared with 100% nitrogen level （450 kg/hm^2）. There were no significant differences in cabbage yields and nitrate contents between composed N-P-K fertilizer containing sulfur and fertilizer containing chlorine as basal manure.

关 键 词：包心菜(Brassica campastris L.ssp.pekinesis) 氮肥 NO3^--N 品质 3 4-二甲基吡唑磷酸盐 

分 类 号：S63[农业科学—蔬菜学] S511.062[农业科学—园艺学]