互助县小麦养分测试施肥推荐模型选优和施肥量控制研究

Study on Optimum Selection of Fertilizer Recommendation Model for Wheat Nutrient Test and Fertilizer Amount Control in Huzhu County

加强对耕地质量的保护是发展现代农业的客观要求,是保护粮食安全的重要措施。在耕地面积逐渐减少的今天,耕地质量保护显得越来越重要。为此,结合互助县化肥使用零增长的实际,在近年来互助县小麦上通过多点多水平肥料试验,分别采用线性加平台、二次型、平方根型和二次型加平台模型对小麦产量与施肥量关系进行拟合研究,根据拟合结果在大多数肥料试验中都很好的表征施肥量与小麦产量之间的关系,在此基础上分别在互助县的川水、浅山和脑山地区的小麦上分别得出最佳施肥量和最大产量。

Strengthening the protection of cultivated land quality is an objective requirement for the development of modern agriculture and an important measure to protect food security. With the gradual reduction of cultivated land area,the protection of cultivated land quality is becoming more and more important. For this reason,combined with the fact of zero growth of chemical fertilizer application in Huzhu County,the relationship between wheat yield and fertilizer application was studied through multi-point and multi-level fertilizer experiments on wheat in Huzhu County in recent years. Linear,quadratic,square root and quadratic models were used to fit the relationship.According to the fitting results,the relationship between fertilizer application and wheat yield was well characterized in most fertilizer experiments.On this basis,the optimal fertilizer application amount and maximum yield of wheat were respectively obtained on wheat in Chuanshui,Asayama and Naoshan regions of Huzhu County.