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一、麦田杂草的种类、发生规律和防除时间 1.杂草种类和出草规律江苏省稻茬麦田主要杂草有看麦娘、日本看麦娘、硬草、罔草、棒头草、猪殃殃、大巢菜、牛繁缕、荠、稻槎菜、野老鹳草、雀舌草等;旱茬麦田主要杂草有野燕麦、播娘蒿、麦加公、猪殃殃、大巢菜、婆婆纳、泽漆、荠、卷耳等。麦田杂草种子萌发出土时间受播种期、土壤温度、湿度等条件的影响。麦播种以后.麦田杂草通常有两个出草高峰,冬前10月下旬至11月下旬为第一个出草高峰,在这个高峰内的出草数约占总出草数的65%
First, the types of wheat weeds, the occurrence of law and control time 1. Weed species and the law of the grass weeds in Jiangsu Province, the main wheat weeds Ma see mother, Japan to see Ma Niang, hard grass, grass, grass, Gallus gallus domesticus, large vetch, cow bisporus, water chestnuts, wild rice, wild geranium, quebracho, etc .; dry weeds in wheat fields are wild oats, sowing Artemisia, Makkor, Galium apricot, large nest Dish, grandma satisfied, Ze paint, water chestnuts, ears and so on. The germination time of weed seeds in wheat field was affected by the conditions of sowing time, soil temperature and humidity. After sowing wheat, wheat weeds usually have two grassroots peaks, from late October to late November before winter is the first peak of grassroots, and the number of grass weeds in this peak is about 65%