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苏丹草是池塘饲养鳊鱼、草鱼的高产优质青饲料。该草具有根系发达,需肥量大等特点。我校实习之地所种的苏丹草,由于施肥不足,播种时未深耕土层及管理不妥等因素。而导致低产.而我村渔业专业户苏丹草种植大都采取深耕土层,把好基肥关(一般每亩施用磷肥、碳酸氢铵各50公斤左右)和促早发、早播和精耕细作等措施。全年可割7～10次,亩产鲜草0.9～1.1万公斤。从施肥角度来看,钾肥能提高植物光合作用强度,促进其对氮、磷和少量镁的吸收。因此,要想苏丹草高产,必须注意钾、氮和磷肥的配合使用。
Sudan grass is the pond raising catfish, grass carp high-yield high-quality green feed. The grass has developed root system, the need for large amount of fat and so on. Sudan grass planted in the internship area of our university is not enough due to inadequate fertilization, improper planting of soil and improper management. Which led to low production.And the majority of my village fishing Sudan grass planting to take deep soil, the good base fertilizer (generally applied phosphate fertilizer per acre, about 50 kg of ammonium bicarbonate) and promote early hair, early sowing and precision farming and other measures. The whole year can be cut 7 to 10 times, per mu fresh grass 0.9 to 11,000 kg. From fertilization point of view, potash fertilizer can increase the plant photosynthesis intensity, and promote its absorption of nitrogen, phosphorus and a small amount of magnesium. Therefore, in order to make Sudan grass high yield, we must pay attention to the use of potassium, nitrogen and phosphate fertilizer.