摘要
以陇燕3号为试验材料,在甘肃省甘南州夏河县研究不同播种时期、微生物菌肥和化肥的不同配比对燕麦生长及其产量的影响。结果表明:播期、肥料种类不同配比对燕麦的叶绿素含量、株高、干草和种子产量及其构成因素均有显著影响。燕麦在高海拔地区不宜早播,4月中旬播种有利于燕麦生长和产量提高。与全部施用化肥相比,菌肥+75%化肥和菌肥+50%化肥更能促进燕麦生长和干草及种子产量的提高,并降低了化肥用量和生产成本,因此,在高寒地区燕麦生产中可用微生物菌肥替代25%～50%的化肥。
In order to define seeding date of oat and the feasibility of bio-fertilizer replacing portion of chemical fertilizer in alpine area,an experiment was conducted in Xiahe County,Gannan Prefecture of Gansu Province,using Longyan No.3 as material.The effects of seeding dates,fertilizers and their ratio on oat growth and yield were studied.The results showed that seeding dates,fertilizers and their ratio significantly affected SPAD,plant height,hay and grain yield.It was not good to seed oat earlier in alpine area,mid of April was the proper time for seeding.Compared with 100% chemical fertilizer application,the treatments of bio-fertilizer ＋75% chemical fertilizer and bio-fertilizer ＋50% chemical fertilizer could even improve oat growth and increase hay and grain yield,meanwhile reducing the dosage of chemical fertilizer and production cost.In alpine area,bio-fertilizer can be used to replace 25%~50% chemical fertilizer.
出处
《中国草地学报》
CSCD
北大核心
2013年第4期47-51,60,共6页
Chinese Journal of Grassland
基金
农业行业科研专项(201003023)
现代农业产业体系(CARS-08-C-1)资助
关键词
燕麦
微生物菌肥
化肥
产量
Oat
Bio-fertilizer
Chemical fertilizer
Yield
