营口地区马铃薯复种高粱研究初报

Research on Multiple Cropping of Potato and Sorghum in Yingkou Area of Liaoning Province

2018年,选用荷兰17马铃薯品种与辽杂37等6个早熟高粱品种,在营口市鲅鱼圈区熊岳镇进行复种试验。上茬马铃薯4月5日播种,下茬高粱分两个播期,分别是7月5日和7月12日。结果表明,上茬马铃薯7月2日收获,产量为17887.2 kg/hm^2;下茬高粱第一期播种的6个品种在霜前均正常成熟,其中以辽杂37产量最高,为9300 kg/hm^2,产量次之的是吉杂138,为9153 kg/hm^2;第二期播种的所有品种均未达到蜡熟期,说明在当地进行马铃薯与高粱复种,下茬作物播种期不能晚于7月5日。

In 2018,multiple cropping experiments of potato and sorghum were carried out in Xiongyue Town of Yingkou City.Holland 17 potatoes and six sorghum varieties such as Liaozao 37 were selected for the experiments.Potatoes were planted on April 5th as the first crop and were harvested on July 2nd.The sorghum were planted on July 5th and 12th.The result shows that the yield of potatoes is 17887.2 kg/hm^2;the sorghum which was planted on July 5th was ripe before the first frost,and among the six sorghum varieties,Liaozao has the highest yield with 9300 kg/hm^2.The sorghum which was planted on July 12th was not ripe before the first frost.The result tells us that the sorghum must be planted before July 5th for multiple cropping of potato and sorghum.