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甘薯亦称红薯、地瓜、红苕等。近年来随着我县甘薯种植面积的扩大,甘薯出现的问题越来越多。常有部分农民朋友反映,甘薯秧子旺不结薯或薯块小、产量低。经调查分析了该情况发生的原因,并提出针对性的防治对策。一、发生原因甘薯只长秧子不结薯或薯块小、产量低,主要是由于品种的抗病性、施肥结构不合理,从而引发此情况发生。1、品种抗病性。品种严重退化病毒积累所
Sweet potato, also known as sweet potato, sweet potato, red crab and so on. In recent years, with the expansion of sweet potato planting area in our county, the problems of sweet potato appear more and more. Often some farmers friends reflect sweet potato seedless Wang potato or tuberous small, low yield. After investigation and analysis of the reasons for the situation, and put forward targeted prevention and control measures. First, the occurrence of sweet potato only long seedlings no potato or potato small, low yield, mainly due to the variety of disease resistance, irrational structure of fertilization, which led to this situation. 1, the variety of disease resistance. Varieties severely degenerate virus accumulation