农香39属于籼型常规晚稻迟熟品种,在2015年湖南省第十届优质稻品种评选中,被评为一等优质稻品种.在益阳市多点试种试验表明,与当地主栽品种黄华占相比,表现为米质优,抗寒性、抗倒性较好.对农香39在益阳市多点试种的种植表现及高产抛栽技术措施进行介绍,以期能帮助农民增产增收.

<正>目前,养猪场的生产信息管理都不同程度地存在不健全的问题,大部分猪场生产运转资料没有系统的记载或记载缺失,如有的没有猪场疾病史资料,需要调查疾病史时全凭记忆,当疾病暴发时,因果不明,措手不及;有的没有完整的母猪系谱档案和定期淘汰机制与依据,产能和免疫抗体

The influences of different nitrogen fertilizer rates on the yield of Xiangzaoxian45 were studied through the field plot experiment.The results showed that different nitrogen fertilizer rates had huge influences on the yield of the Xiangzaoxian45 that it was positively correlated with the nitrogen fertilizer increasing to 180 kg/hm2 and reduced with the nitrogen fertilizer exceeding the 180 kg/hm2.Comprehensively analysis indicated that the Xiangzaoxian45 got the highest yield and benefit when the nitrogen fertilizer rate was within 180 kg/hm2.