问:听老农讲,扁豆开花时,如遇上雾就会影响产量,为什么?怎样防止下雾的危害?(河南省临颍县石桥公社驼铺十队杨宝德) 答:小扁豆茎蔓柔软,单播时匍匐地面,通风透光不良,下部茎叶易生病或腐烂。自花授粉,多在晴天开花。在开花期生长最茂盛,若遇阴天或大雾,因为湿度过大,匍匐更严重,不但茎叶容易生病,而且 Q: listen to the peasants say lentils flowering, in case of fog will affect the yield, why? How to prevent the hazards of fog? (Henan Province, Linyi Shiqiao commune camel pawn 10 Yang Baode) A: lentils stems and cranberries soft , When unicasting creeping the ground, poor ventilation and light, the lower stems and leaves easily sick or decay. Self-pollinating, mostly in sunny weather. In the flowering of the lush growth, in case of cloudy or fog, because the humidity is too large, prostrate more serious, not only the stems and leaves easily sick, and