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湖草是湖南洞庭湖滨湖地区有机肥料的主要来源,是当地容易取得的一种有机肥料。湖草富含肥分,据前人分析,湖草含氮1.12％,磷0.54％,钾0.43％。湖草有水生和陆生两种,水生的多生于水浅的湖泊、河流、池塘里,它的种类很多,有大叶黑、细叶黑、虾须草等。陆生的多生于荒芜的湖洲上,有湖草子、黑草子、苦草等。湖草一年四季均可收割和打捞,但是,湖区农民多在春秋两季进行,冬季收割和打捞的叫冬湖草,春季收割和打捞的叫春湖草。湖草使用很广,不论水田、旱土,不论粮食作物或经济作物均可使用,既可做基肥,又可做追肥。湖草在水田利用多做水稻田的“度冬肥”、“耖田肥”;在旱地上多做旱作物的追肥,也有把湖草与草皮、厩肥、人粪尿漚制成氹肥或制成堆肥,作为棉花、芋麻、黄麻的基肥。
Lake Lake is the main source of organic fertilizers in the lake area of Dongting Lake in Hunan Province, and is an easily available organic fertilizer locally. Lake grass is rich in fertilizers, according to previous analysis, lake grass nitrogen 1.12%, phosphorus 0.54%, potassium 0.43%. Lake grass has two kinds of aquatic and terrestrial, aquatic organisms born in superficial lakes, rivers, ponds, and its many types, there are large leaf black, fine leaf black, shrimp and so on. More terrestrial students born in the barren lake, there are lakes, black grass, bitter grass and so on. Lake grass can be harvested and salvaged throughout the year, however, the lake farmer mostly in spring and autumn, winter harvest and salvage called winter lake grass, spring harvest and salvage called spring lake grass. Lake grass is widely used, regardless of paddy fields, dry land, regardless of food crops or cash crops can be used, both as a base fertilizer, but also make topdressing. Lake grass in paddy fields to do more with paddy fields, “winter fertilizer”, “耖 Tian fertilizer”; in the dry land to do more crop fertilizer, but also to the lake grass and turf, manure, human waste 沤 made Taipu Or made of compost, as cotton, taro, jute base fertilizer.