棉花化肥减量增效技术模式

Technology Model of Reducing Fertilizer Application and Increasing Efficacy in Cotton

该文以无为县营养钵育苗移栽棉田为研究对象,基于无为县耕地养分现状,依据最小养分律等理论,提出了根据土壤肥力状况和肥效反应,增施有机肥,适当调减氮磷肥用量,稳定钾肥用量;土壤中缺硼、锌的棉田,应基施硼肥和锌肥,潜在缺乏的应根外喷施的的施肥技术模式。该技术模式集成了测土配方施肥、控缓释配方肥应用等技术,能有效增强地力肥力,提高化肥利用效率,减少化肥使用量、投入劳动力及资本量,节本增效明显。

Taking Wuwei block seedling transplanting cotton as the research object, based on the Wuwei farmland nutrient status quo, based on the theory of minimum nutrientlaw, this paper put forward the idea of increasing organic fertilizer application, according to the situation of soil fertility and fertilizer effect, appropriating scale down nitrogen dosage of phosphate fertilizer, potashing use ; Boron, zinc deficiency in the soil of cotton, based on zinc and boron fertilizer fertilizer, should be the root of potential for lack of spraying fertilization technology pattern.The technology model integrates the measured soil fertilizer, accused of slow-release formula fertilizer application, such as technology, also effectively enhance soil fertility, and improve the fertilizer utilization efficiency, and reduce fertilizer usage and input amount of labor and capital.