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5年的肥料效应研究结果表明,有机肥能提高甘蔗的产量,有机无机肥配施的效果更佳;磷肥能提高甘蔗的品质;等量的有机肥和等量的化肥其肥效基本接近.就甘蔗作物说,1000kg干牛粪相当于60kg尿素和50kg普钙的总和;不施任何肥料作对照的其他施肥处理,其肥料的利用率,远低于以肥底作对照的处理;不施肥的处理其土壤肥力耗竭现象十分严重,大约只需6、7年的时间即可使甘蔗降产50%以上.
The results of five years of fertilizer effect showed that organic manure can increase the yield of sugarcane and the effect of organic and inorganic fertilizers was better. Phosphate fertilizer could improve the quality of sugarcane; the same amount of organic manure and the same amount of chemical fertilizer had the similar effect. Sugarcane crop, said 1000kg dry cow manure equivalent to 60kg urea and 50kg of total calcium; without any fertilizer as a control of other fertilization, the utilization rate of its fertilizer, far below the control of the substrate as fertilizer; not fertilized Depletion of soil fertility is very serious and it takes only about 6-7 years to reduce sugar cane yield by more than 50%.