不同施肥方式对抗旱转基因大豆田杂草群落的影响  

Effect of Different Fertilization Pattern on Weed Community Diversity in Drought-Resistant Transgenic Soybean Field

作　　者：刘厚雪 丁伟[1] 戴航宇[2] 吴佳丽[1] 闫春秀[1] 程茁[2] 

机构地区：[1]东北农业大学农学院,哈尔滨150030 [2]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《东北农业科学》2016年第1期86-90,共5页Journal of Northeast Agricultural Sciences

基　　金：国家转基因生物新品种培育重大专项(2014ZX08011-003);黑龙江省留学归国基金课题(LC2011C01);黑龙江省青年基金课题(QC07C45)

摘　　要：采用田间小区试验方法,N、P、K肥分别做种肥,研究了不同施肥方式对抗旱转基因大豆田间杂草群落的影响。结果表明:N、P、K配施有效地减小了田间杂草的密度、数量以及杂草种类,增加了土壤养分以及水分,其影响程度为NP-K>N-P;在N、P、K单施中,N肥的施用对杂草发生种类及数量的影响最大,K肥的影响最小,从而造成N肥施用后杂草密度、种类、数量显著高于不施肥和施用P肥、K肥处理,其影响程度为N>P>K。因此仅从减少田间杂草群落角度,各种施肥处理的影响程度为N-P-K>N-P>CK>K>P>N。Field experiments were conducted and N, P, K fertilizers applied at sowing. Effects of fertilization pat- terns on weed community diversity in drought-resistant transgenic soybean field were studied. The results showed that N, P, K fertilizer effectively reduced the weed density, weed species and quantity, increased soil nutrients and moisture. The sequence of this effect was N-P-K 〉N-P. In N, P, K single fertilization test, N fertilizer application influenced weed species and quantity the most, K fertilizer the least. Weed density, species, quantity and soil nutrient content in N fertilizer treatment was significantly higher than that of no fertilization and P fertilizer, K fertilizer. Soil moisture content in N fertilizer treatment was significantly lower than that of no fertilization and P fertilizer, K fertilizer treatment, and the sequence of this effect was N 〉 P 〉K. So only from the perspective of reducing the field weed community, the influence degree of various fertilizer treatments was N - P - K 〉 N - P 〉 CK 〉 K 〉 P 〉 N.

关 键 词：施肥 抗旱转基因大豆 杂草群落 土壤养分 

分 类 号：S482.4[农业科学—农药学]