Effects of Nitrogen Fertilizer Regulation with Straw-return on Wheat Yield and Different Forms of Potassium in the Soil  

秸秆全量还田下氮肥调控对小麦产量及土壤不同形态钾的影响（英文）

作　　者：董亮[1] 孙泽强[1] 王学君[1] 董晓霞[1] 郭洪海[1] 郑东峰[1] 马征[1] 

机构地区：[1]山东省农业科学院农业资源与环境研究所/农业部山东省耕地保育科学试验观测站/农业部黄淮海平原农业环境重点实验室/山东省植物营养与肥料重点实验室,山东济南250100

出　　处：《Agricultural Science & Technology》2015年第7期1452-1456,共5页农业科学与技术（英文版）

基　　金：Supported by the Project of National Science and Technology Support Plan-"Integration and Demonstration ration of Straw Resources Recycling Technologies in Huang-HuaiHai Plain Area"(2012BAD14B07);the Project of Major Application Technology Innovation of Agriculture in Shandong Province-"Study on Recycling Technology of Waste Resourcization in Large-scale Farm";the Foundation for Outstanding Young Scientist in Shandong Province-"Study on the Mechanism of the Effect of Drip Irrigation with Saline Water on Soil Environment and Its Crop Response"(BS2011NY017);the Project of National Natural Science Foundation-"Study on the Allocation Pattern and Interface Control of Salinity under the Condition of Brackish Water Irrigation"(51209130)~~

摘　　要：In order to study the effects of nitrogen fertilizer application methods and nitrogen fertilizer regulation with straw-return on wheat yield and potassium forms in the soil, field experiment was arranged in Pinyuan County, and the effects of the regulation of different ratios of basal to topdressed nitrogen on the yield of wheat and the contents of different forms of potassium in the soil were studied. The re- sults indicated that in the condition of straw-return, the yield of wheat was the high- est after the treatments of the ratios of basal to topdressed nitrogen of 7：3 and 6：4. As to the contents of different forms of potassium, the contents of water-soluble potassium, exchangeable potassium and total potassium treated by the ratios of basal to topdressed nitrogen of 7：3 and 6：4 were the highest, and the differences of non-exchangeable potassium among all treatments were not significant. Under the experiment condition, the ratios of basal to topdressed nitrogen of 7：3 and 6：4 were the best treatments, they can increase the wheat yield and the contents of available potassium and total potassium in the soil.为研究秸秆还田条件下小麦氮肥施用方法及秸秆还田调控氮肥对小麦产量及土壤钾形态的影响,通过田间试验,研究了秸秆全量还田条件下氮肥不同基追比调控对小麦产量、土壤不同形态钾含量的影响。结果表明,秸秆还田条件下,氮肥基追比7∶3、6∶4处理的小麦产量最高。从土壤不同形态钾含量来看,氮肥基追比7∶3、6∶4处理的土壤水溶性钾、交换性钾、全钾含量最高。所有处理的非交换性钾差异不大。在本试验条件下,氮肥基追比7∶3、6∶4处理为秸秆全量还田下效果最佳,利于小麦产量提高及增加土壤速效钾及全钾含量。

关 键 词：Straw-return WHEAT Water-soluble potassium Exchangeable potassium Non-exchangeable potassium Total potassium 

分 类 号：S512.1[农业科学—作物学]