摘要
为了探讨施肥对青贮玉米原料及青贮饲料的影响,在撒施羊粪的田间,青贮玉米栽培管理时,分别单独施用氮肥(N-150kg/hm^2)、磷肥(P_2O_5-120kg/hm^2)、钾肥(K_2O-150kg/hm^2),以不施用化肥为对照,经田间测产和取样,并对其青贮发酵后进行分析。结果表明,增施氮肥能极显著提高青贮玉米产量(P<0.01),Milk2006奶亩指数显著高于单施磷钾肥和对照处理(P<0.05);增施钾肥显著提高了青贮玉米的产量(P<0.05)。增施氮肥除了提高玉米青贮饲料氨态氮含量外(P<0.05),玉米青贮饲料的其他发酵品质参数差异不显著。青贮不仅保存了原料的养分,同时降低了硝酸盐含量。
The effects of fertilizer N（150 kg/hm^2）, P2O5（120 kg/hm^2）, and K2O（150 kg/hm^2） on maize raw material and silage at sheep manured soil were studied. The results indicated that the yields of maize silage were increased significantly（P〈0.01） with the N fertilizer, which had the higher milk per mu index compared that of the CK, P2O5 and K2O（P〈0.05）. Compared to the treatments of CK and P2O5, the yield of maize with K2O application increased significantly（P〈0.05）. The fermentative quality of silage maize had no significant difference except achiving a higher ammonia nitrogen content of silage with N fertilizer. Silage not only preserved the nutrient content of the maize raw materials, but also reduced the nitrate content.
作者
高文俊
杨国义
高新中
玉柱
许庆方
原向阳
孙耀武
Gao Wenjunl;Yang Guoyi;Gao Xinzhong;Yu Zhu;Xu Qingfang;Yuan Xiangyang;Sun Yaowu(College of Animal Science and Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,Shanxi,China;Forage Work Station of Shanxi Province,Taiyuan 030001,Shanxi,China;College of Animal Science and Technology,China Agricultural University,Beijing 100094,China;College of Agriculture,Shanxi Agricultural University,Taigu 030801,Shanxi,China;Shanxi Wanrongchang Sheep Farming Cooperatives,Taigu 030801,Shanxi,China)
出处
《作物杂志》
CAS
北大核心
2018年第5期144-149,共6页
Crops
基金
国家重点研发计划项目(2017YFD0502103-2)
公益性行业(农业)科研专项(201303061)
关键词
青贮玉米
氮磷钾肥
产量
品质
Silage maize
Nitrogen
phosphorus and potassium fertilizer
Yield
Quality
