做好棉花播后及苗期管理技术工作,是实现棉花保全苗,育壮苗,促早发,多结桃,实现带桃入伏,获得棉花高产的关键技术措施。一、播种后出苗前的田间管理1.搞好播后“四查”棉花播种后,要及时检查有无漏播、漏盖、风干、烂种的现象,如有漏播的及时补种;有漏盖的及时盖湿土,有烂种烂芽的,轻者及时催芽补种,重者及时重播。2.使用化学除草剂除草棉田化学除草,可节省用工,降低成本,效果不错。可根据杂草的种类、大小、数量、土壤类型及气候等情况,严格按照各种除草剂说明书上的用量、要求使用。3.松土破板结播种后出苗前如遇大雨容易造成土壤板结,每逢雨后都要松土破板,增温保墒,促使种子快发芽出苗。方法:播后遇雨,地面形成板结层,可用耙横耙破板,助苗出土。二、棉花苗期田间管理1.棉花苗期生长特点 Good cotton sowing and seedling management techniques, cotton seedling is to achieve conservation, strong seedlings, and promote early hair, more peach, with peach into the vault, access to high-yielding cotton key technical measures. First, field management after sowing before emergence 1. Do sowing after “four check” After sowing cotton, it is necessary to promptly check whether the leakage of leakage, leakage cover, air-dried, rotten phenomenon, such as missed broadcast timely replenishment Species; leak cover timely cover wet soil, rotten buds rotten, light germination replant in time, heavy replay in time. 2. The use of chemical herbicides cotton weed chemical weeding, can save labor, reduce costs, the effect is good. According to the weed species, size, quantity, soil type and climate, etc., in strict accordance with the amount of various herbicides instructions, requirements. 3. Loose soil breaking planted seedlings before emergence in case of heavy rains easily lead to soil compaction, soil every day after breaking the plate, warming soil moisture, prompting the seed germination emerge. Methods: After sowing rain, the formation of the ground floor layer, rake rake can be used to break, to help seedlings unearthed. Second, cotton seedling field management 1. Cotton seedling growth characteristics