论文部分内容阅读
梨树密植栽培模式主要有棚架、篱壁式、“Y”字形等树形,均需搭建架式,前期投入较大。南京农业大学梨工程技术研究中心从2005年起开展沙梨细长纺锤形整形修剪技术研究,探索出翠冠、丰水等沙梨品种梨树细长纺锤形整形修剪技术。该树形定植株行距为(1.5~2)m×4m,主干高60~70cm,树高2.5~3m,冠径为1.5~2m。中心干直立强壮,螺旋状均匀分布10~15个侧枝,下长上短,侧枝开张角度80°~90°,其上直接着生结果枝组,树体较高,上小下大,形似细长纺锤形。该树形前期投入少,整形修剪简单,早结丰产,是一种较好的密植栽培树形。
Pear planting planting patterns are mainly scaffolding, fence wall, “Y ” glyphs and other trees, are required to build a frame type, a larger initial investment. Pear Engineering Research Center of Nanjing Agricultural University since 2005 to carry out saroli elongated spindle trim pruning technology to explore the Cui Guan, Feng Shui and other pear pear slender spindle pruning technology. The plantation line spacing (1.5 ~ 2) m × 4m, trunk height of 60 ~ 70cm, tree height 2.5 ~ 3m, crown diameter of 1.5 ~ 2m. The center of the stem is erect and strong with 10 to 15 branches evenly distributed in the shape of a spiral. The branches are long and short, and the branches open at an angle of 80 ° to 90 °. The branches are directly attached to the branches of the tree. The trees are tall, Long spindle shape. The tree early investment, plastic trimming simple, early high yield, is a better close planting tree.