黄河三角洲盐碱地白蜡“3414”肥效试验研究  

Growth of Chinese Ash as Affected by Fertilizer Application Based on 3414 experimental design in Yellow River Delta

作　　者：刘桂民[1] 张兰英 马丙尧[1] 周健[1] 杨庆山[1] 刘德玺[1] 王振猛[1] 

机构地区：[1]山东省林业科学研究院,山东济南250014 [2]济南市北郊林场

出　　处：《山东林业科技》2014年第3期47-49,共3页Journal of Shandong Forestry Science and Technology

基　　金：山东省科技发展计划项目(2010GNC10942);山东省自主创新专项项目(2012CX90303)

摘　　要：采用"3414"田间试验方案,对黄河三角洲地区滨海盐碱地3年生白蜡进行了连续2年的氮、磷、钾田间肥效研究。结果表明,不同肥料配比对白蜡的生长产生了显著影响,所有施肥处理白蜡苗木的胸径增长率显著高于对照处理,当N、P2O5和K2O的施用量分别为0.064kg株-1 a-1、0.036kg株-1 a-1和0.048kg株-1 a-1时,白蜡的胸径的当年、累积增产率以及经济效益均优于其它施肥组合。通过拟合所得的一元二次施肥效应模型计算得出,在本试验条件下白蜡的N、P2O5和K2O最佳经济效益施肥量分别为0.070kg株-1 a-1,0.047kg株-1 a-1和0.068kg株-1 a-1。The Effect of N,P,and K fertilizer combinations on the 3-year-old Chinese ash in coastal saline soil of Yellow River delta was studied with＂3414＂trial design during two years.The results showed that the different fertilizers ratios significantly influenced the growth of DBH（diameter at breast height）.Compared with the unfertilized control,the increment percentages of DBH were significantly increased in all treatments applied with fertilizers.Among all treatments,N2P2K2was the best for DBH growth and benefit at the rates of N,P and K of 0.064,0.036and 0.048kg plant-1 a-1,respectively.Fertilizer recommended rates were simulated by the models of one-factor by nonlinear regression.Considering the best interests,the recommended rates of N,P2O5and K2O are 0.070,0.047and 0.068kg per plant in each year,respectively.

关 键 词：白蜡 “3414”试验 肥效 滨海盐碱地 

分 类 号：S792.41[农业科学—林木遗传育种]