不同混农模式对产前期油茶闽43~#、48~#、60~#优良无性系幼树营养生长的影响  

Effects of Different Agricultural Mixing Models on the Early Stage of Production of Camellia Oleifera Fujian 43~#,48~#,60~# of Vegetative Growth on Young Trees of Fine Clones

作　　者：高亚清 Gao Yaqing(Forestry Bureau of Longhai City,Longhai,Fujian 363100,China)

机构地区：[1]福建省龙海市林业局,福建龙海363100

出　　处：《绿色科技》2019年第1期144-149,共6页Journal of Green Science and Technology

摘　　要：在田间采用两向分组的实验设计方法,研究了不同混农模式对龙海市产前期油茶闽43~#、48~#、60~#优良无性系幼树树体营养生长的影响,通过对产前期油茶林地进行连续3年不同混农套种模式的试验研究和统计分析,结果表明:参试的油茶闽43~#、48~#、60~#3个优良无性系品种之间造林成活率及幼树树体营养生长(树高、地径、冠幅平均直径)无显著差异。而混农套种模式与CK相比,混农套种的造林成活率略有下降,但影响不显著;但对油茶闽43~#、48~#、60~#优良无性系的树高、地径、冠幅平均直径的影响达极显著水平,说明混农模式是油茶幼树树体营养早日建成的关键因素之一。混农套种模式可极显著地提高产前期油茶闽43~#、48~#、60~#优良无性系幼树树体营养生长;同时产前期油茶林混农模式提高了土地利用率、增加了经济收益,达到了以耕代抚、以短养长的目的,其中以产前期油茶林+花生的混农模式效果最佳,比未混农套种的产前期油茶幼林树高生长提高了47.9%、地径生长提高了33.3%、冠幅平均直径提高42.9%、年平均经济纯收入增加2437.5元/hm2,可以在油茶产区的产前期油茶林地推广应用。In the field, the experimental design method of two-way grouping was used to study the effects of different mixed farming models on the vegetative growth of the eucalypts of Camellia oleifera 43^#, 48^#, 60^# in the prenatal period of Longhai City.Based on the experimental study and statistical analysis of different patterns of mixed cropping and interplanting in Camellia oleifera forest for three consecutive years, the results showed that:there was no significant difference in the survival rate of afforestation and the vegetative growth of young trees (tree height, ground diameter, average diameter of crown width) among the three excellent clones of Camellia oleifera Fujian 43^#, 48^# and 60^#. Compared with CK, the afforestation survival rate of mixed cropping and interplanting decreased slightly, but the effect was not significant. However, the influence of mixed cropping and interplanting on tree height, ground diameter and crown diameter of 43^#, 48^# and 60^# excellent clones of Camellia oleifera reached a very significant level, which indicated that mixed cropping pattern was one of the key factors for the early establishment of nutrition of young trees of Camellia oleifera.Mixed cropping and interplanting mode can significantly improve the vegetative growth of young trees of Camellia oleifera Fujian 43^#, 48^#, 60^#. The height growth of young trees increased by 47.9 %, ground diameter growth increased by 33.3%, crown diameter increased by 42.9%, annual average net economic income increased by 2437.5 RMB/hm^2, which could be popularized and applied in Camellia oleifera Forestland in the pre-production period of Camellia oleifera production area.

关 键 词：油茶优良无性系 产前期 混农模式 农作物 营养生长 

分 类 号：S759.33[农业科学—森林经理学]