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栽培脱毒甘薯较未脱毒甘薯平均增产40％左右,出干率提高1～2.5个百分点,增产效果十分显著。为确保脱毒甘薯的增产效果,在栽培过程中必须掌握以下五项关键技术。 1.选用良种 育足壮苗 淀粉加工区应选用脱毒徐薯18、豫薯7号、豫薯8号;城郊食用区选用脱毒北京553、冀薯4号、郑红11号。春薯应于3月上、中旬采用日光温室、地下加温、火炕及双膜、阳畦等方法育苗。注意育足种、稀排薯、育壮苗。夏薯苗于4月下旬建立地膜覆盖采苗圃,栽插选用秧头苗。在薯苗繁育过程中每隔10～15天应用40％的氧化乐果1500倍液叶面喷洒,避免蚜虫侵染。
Virus-free sweet potato cultivation than the average virus-free yield of about 40%, the rate of increase of 1 to 2.5 percentage points, the yield is very significant. In order to ensure the yield increase of virus-free sweet potato, we must master the following five key technologies in the cultivation process. 1. The selection of seedling plantar seedling Starch processing area should be used detoxification Xushu 18, Yushu 7, Yushu 8; suburbs edible area selection of detoxification Beijing 553, Ishima 4, Zheng Hong 11. Spring potato should be in March, mid-day using solar greenhouse, underground heating, kang and double membrane, sunshine Yang and other methods nursery. Note that enough to plant breeding, thin row of potatoes, nurturing seedlings. Summer potato seedlings in late April to establish a mulching film mulch, planting selection seedlings seedlings. Application of 40% omethoate 1500 foliar foliar spray every 10 to 15 days in potato seedling breeding process to avoid aphid infestation.