一、杂草发生与为害菜用玉米主要包括甜玉米、糯玉米和笋用玉米灯。就其种植季节和种植方式可分为春玉米、夏玉米和地膜玉米。春播玉米田以多年生杂草、越年生杂草和早春杂草为主,如旋花科的田旋花、菊科的苣荬菜、十字花科的荠菜、藜科的藜、蓼科的蓼等;而夏播玉米田则以一年生禾本科杂草和晚春性杂草为主,如稗草、马唐、狗尾草、苋科反枝苋、马齿苋科的马齿苋、菊科的鳢肠、茄科的龙葵、莎草科的异型莎草等;地膜覆 First, weeds occur and damage Vegetable maize include sweet corn, waxy corn and bamboo shoots with corn light. Its planting season and planting methods can be divided into spring corn, summer corn and plastic corn. Spring sowing corn to perennial weeds, perennial weeds and early spring weeds, such as Convolvulaceae Convolvulaceae, Compositae Endangered vegetables, Cruciferae Shepherd’s purse, Chenopodiaceae Chenopodiaceae Polygonaceae Polygonum , While the summer sowing corn field is dominated by annual grass weeds and late spring weeds such as barnyardgrass, crabgrass, setaria, Amaranthus retroflexus, Portulaca oleracea, purslane Intestine, solanaceae Solanum, Cyperaceae Shaped Sedum, etc .; plastic cover