两种野生绿肥对小白菜生长和营养品质的影响  

Influence of application of two wild green manures on growth and nutritional quality of pakchoi

作　　者：陈姣[1] 吴良欢[2] 

机构地区：[1]浙江省亚热带土壤与植物营养重点实验室,浙江大学环境与资源学院,浙江杭州310029 [2]环境修复与生态健康教育部重点实验室,浙江大学环境与资源学院,浙江杭州310029

出　　处：《植物营养与肥料学报》2009年第3期625-630,共6页Journal of Plant Nutrition and Fertilizers

基　　金：国家自然科学基金项目(30370838);浙江省科技攻关项目(021102084)资助

摘　　要：通过盆栽试验,研究了夏秋两季连续施用野生绿肥植物,即:罂粟科博落回属(Macleaya)(GMⅠ)和壳斗科栎属(Quercu)(GMⅡ),对小白菜生长及其营养品质的影响。结果表明,与夏季绿肥与尿素配施相比对照显著提高小白菜产量,秋季绿肥Ⅰ的所有处理比对照和单施尿素都能显著提高小白菜的产量;两种绿肥与尿素配施及绿肥Ⅰ单独施用能显著提高小白菜全年的产量。与单施尿素和绿肥加倍单施处理相比,夏季秋季绿肥单施和绿肥尿素配施能显著降低小白菜可食部分硝酸盐含量;秋季各绿肥处理都增加维生素C含量,但夏季差异不明显;夏季秋季各绿肥处理都增加可溶性糖含量,且秋季增加更显著。两种野生绿肥在夏秋季连续施用条件下,秋季施用比尿素能更有效地提高小白菜的产量和营养品质,尤以绿肥Ⅰ的效果最好。Influence of continuous application of two wild green manures of Macleaya （GM Ⅰ ） and Quercu （GM Ⅱ ） with high nitrogen content both in summer and autumn on growth and nutritional quality of pakehoi（ Brassica chinensis L. ）was studied using pot experiments. Compared with CK, shoot fresh weights are significantly increased with the application of mixture of the green manures with urea in summer, while compared with both CK and urea treatments, shoot fresh weights are significantly increased with the application of the GM Ⅰ treatments in autumn. Yields of pakchoi in whole year are notably increased when mixture of the green manures with urea, and GM Ⅰ used alone. Compared with urea and double green manure treatments, the nitrate contents of the eatable part of pakchoi are remarkably decreased for the green manures used alone and mixture of the green manures with urea manures could increase vitamin C content in autumn. Soluble treatments in the two seasons. All treatments with two green sugar contents are improved by the two green manures both in summer and autumn, and benefits are even better in autumn. In conclusion, compared with urea used alone, the two green manures could increase yield and enhance nutritional quality of pakchoi in autumn, and the GMⅠis found to be the best.

关 键 词：富氮绿肥 小白菜 产量 营养品质 

分 类 号：S634.1[农业科学—蔬菜学]