不同配方施肥对马尾松幼林生长的影响  

Effect of Different Formula Fertilization on the Growth of Pinus massoniana Young Forest

作　　者：李春宁 黄恒泽 付军 Li Chunning;Huang Hengze;Fu Jun(Guangxi State-Owned Paiyangshan Forest Farm,Chongzuo,Guangxi 530330,China)

机构地区：[1]广西国有派阳山林场,广西崇左530330

出　　处：《绿色科技》2022年第23期120-123,共4页Journal of Green Science and Technology

基　　金：中央财政林业科技成果推广示范项目(编号:[2017]TG04号)。

摘　　要：为了研究N、P、K含量对马尾松新造林生长量的影响。通过对土壤养分进行分析,设置4个N、P、K不同含量配比的配方肥,连续3年对马尾松幼林进行了配方施肥处理,连续4年对马尾松幼林生长情况进行了跟踪观察测定。结果表明:4个配方肥马尾松胸径年平均生长量分别为2.6 cm、2.75 cm、2.625 cm、2.6 cm,比CK年平均胸径2.375 cm高出9.47%~15.79%,各处理对胸径生长的影响依次为处理2>处理3>处理>1处理4;马尾松树高年平均生长量分别为1.575 m、1.55 m、1.55 m、1.525 m,比CK树高年均生长量1.475 m分别高出3.39%~6.78%,对马尾松树高的影响依次为处理1>处理4>处理>2处理3;4年生马尾松平均年蓄积量为1.604 m^(3)、1.757 m^(3)、1.610 m^(3)、1.559 m^(3)比CK年平均蓄积量1.227 m^(3)高出22.04%~25.61%,对马尾松单株材积的影响依次为处理2>处理3>处理>1处理4;施配方肥对马尾松幼林的树高、胸径、单株材积、蓄积量的影响大小依次为单株材积>年蓄积量>胸径>树高。指出了施用配方肥对马尾松幼林的生长有一定的促进作用,4个配方肥对马尾松幼林的生长效果的影响依次为处理2>处理3>处理>1处理4,其中处理2马尾松配方肥N、P、K含量比例为5%、20%、10%时,最利于马尾松幼林的生长。This paper is to study the effect of N, P, K content on the growth of Pinus massoniana. Based on the analysis of soil nutrients, four formula fertilizers with different content ratios of N, P and K were set up, and the young Pinus massoniana forests were treated with formula fertilization for three consecutive years. The growth of young Pinus massoniana forests was tracked and measured for four consecutive years. The average annual growth of DBH of Pinus massoniana in the four formula fertilizers were 2.6cm, 2.75cm, 2.625cm and 2.6cm respectively, 9.47%~15.79% higher than that of CK 2.375cm. The effects of each treatment on the growth of DBH were as follows: treatment 2>treatment 3>treatment 1>treatment 4;The average annual height growth of Pinus massoniana is 1.575m, 1.55m, 1.55m and 1.525m respectively, which is 3.39%~6.78% higher than that of CK tree 1.475m. The effect on the height of Pinus massoniana is treatment 1>treatment 4>treatment 2>treatment 3 in turn;The average annual volume of 4-year-old Pinus massoniana is 1.604m^(3), 1.757m^(3), 1.610m^(3) and 1.559m^(3), which was 22.04% ~ 25.61% higher than the average annual storage volume of CK 1.227m^(3). Its effect on the volume of single Pinus massoniana is in the order of treatment 2>treatment 3>treatment>1 treatment 4;The effect of applying formula fertilizer on the height, diameter at breast height, volume and volume of single tree of young Pinus massoniana stands is in the order of single tree volume>annual volume>diameter at breast height>tree height. The application of formula fertilizer can promote the growth of young Pinus massoniana forest to some extent. The effect of four formula fertilizers on the growth of young Pinus massoniana forest is treatment 2>treatment 3>treatment>1 treatment 4 in turn. When the content of N, P, K in treatment 2 is 5%, 20%, 10% and it is most conducive to the growth of young Pinus massoniana forest.

关 键 词：马尾松 配方肥 胸径 树高 单株材积 

分 类 号：S791.248[农业科学—林木遗传育种]