氮磷钾配施对巨桉木材纤维素含量的影响  

Effect of Combined Application N,P and K on Cellulose Content of Eucalyptus Grandis

作　　者：钟宇[1] 罗启高 张健[1] 冯茂松[1] 杨万勤[1] 

机构地区：[1]四川农业大学林学院,四川雅安625014 [2]峨边县林业局,四川峨边614300

出　　处：《生物数学学报》2011年第4期666-674,共9页Journal of Biomathematics

基　　金：国家"十五"科技攻关重点资助项目(2001BA606A-06);国家自然科学基金项目(30872014)

摘　　要：利用通用旋转组合设计方法,建立了氮、磷、钾与巨桉木材纤维素含量之间的效应模型.合理施用氮或钾可以提高木材纤维素含量,施用磷无助于木材纤维素含量的提高.氮、磷之间具有协同效应,以中量的磷和中量的氮搭配施用为好;高钾低氮或者高氮低钾有助于木材纤维素含量的增加;考虑氮、磷、钾的综合效应,宜选择中等水平的磷和高水平的钾搭配.因素取95%的置信区间既丰产又优质的最佳综合农艺措施为:氮56g/N,磷47～51g/N,钾42～46g/N.The mathematical model of the relationship between N,P,K and cellulose content of Eucalyptus grandis Pulpwood was founded by means of the method of quadratic general rotational combine design.The quadratic regression models were simulated closely with reality by testing.Applying rational amount of N and K could increase cellulose content,and P application couldn＇t help the cellulose content increase;.There was a mutually beneficial relation between N and P,and middle dosage of N and P could get a high value of cellulose content.High elosage of K and low dosage of N or high dosage of N and low dosage of K could help the;raise;of cellulose content.The combination of middle dosage of P and high dosage;of K was recommended.When the factors of density,N,P,K were in the confidence limit of 95%,the excellent cultivated pattern for high yield as well as high quality was the following：planting density was 152-153 N/667m^2, N was 54-61 g/N,P is 48-49g/N,K was 45-52 g/N.

关 键 词：巨桉 木材纤维素含量 氮磷钾配施 

分 类 号：S688.406.2[农业科学—观赏园艺]