【作者】 李录久； 王家嘉； 高杰军； 吴萍萍； 姚殿立； 丁楠；

【Author】 Li Lujiu~1,Wang Jiajia~1,Gao Jiejun~2,Wu Pingping~1,Ding Nan~2,Yao Dianli~2 (1.Soil and Fertilizer Institute,Anhui Academy of Agricultural Science,Hefei 230031; 2.The Agricultural Technology Extension Centre at Linquan County,Linquan 236400)

【机构】 安徽省农科院土壤肥料研究所； 临泉县农业技术推广中心；

【摘要】 通过田间试验研究氮钾配合施用对生姜生长及土壤pH、有机质和养分含量的影响。结果表明,适宜的氮钾配施能有效促进生姜的生长发育,提高块茎产量,施钾平均增产29.0%。高量施用氮、钾肥会大幅度提高土壤全N、有效P和速效K及缓效钾含量,导致土壤pH下降,促使土壤向酸化方向发展,对土壤有机质、全P和碱解N含量的影响则较小。更多还原

【Abstract】 Field experiments to test effect of application of fertilizers with nitrogen(N) and potassium(K) combinations on ginger growth and the status of soil nutrient were conducted.Results showed that applying appropriate N combined with K could efficiently promote the growth of ginger and increase rhizome yield with average growth of 29.0%.A high rate of N or K application could remarkably improve the concentration of total N,available phosphorus(P),available K and slow-available K,induce soil pH to drop and make it develop to the direction of acidity,but without an obvious influence on the content of organic matter,total P and alkali-hydrolyzed N in soils.更多还原