摘要
为确定氮肥的适宜用量,促进马铃薯生产节本增效,通过设置不同的氮素使用梯度测定马铃薯品种雪川4号产量指标。结果表明:各处理总产量和商品薯产量的顺序均为150%N>125%N>75%N>100%N>50%N,而商品率的顺序为50%N>75%N>125%N>150%N>100%N,各处理干物质的含量高低顺序为150%N>75%N>100%N>50%N>125%N。结合张家口坝上地区的种植模式,综合分析各个指标,得出应适当减少氮素的施用,节省成本,其中75%的氮素比较合适。
In order to solve the problem of excessive application of potato chemical fertilizer and promote cost saving and efficiency increasing.Based on the data of field investigation and the results of soil analysis,this paper systematically analyzed the current situation and problems of fertilizer application in the main potato producing areas in central region of Heilongjiang Province.According to the target yield of potato,combined with the evaluation of soil capacity and the technology of soil testing and formula fertilization,the suggestion of rational application of chemical fertilizer for potato production in the central region of Heilongjiang Province was put forward.
作者
郦海龙
郭继云
赵一博
牛丽娟
LI Hai-long;GUO Ji-yun;ZHAO Yi-bo;NIU Li-juan(Snow Valley Agricultural Development Limited Company,Zhangjiakou 076481,China)
出处
《黑龙江农业科学》
2019年第12期58-60,共3页
Heilongjiang Agricultural Sciences
基金
中国马铃薯生产良好农业规范联合研发(18396428D)
