枝量和生长量是苹果早果丰产的基础,但苹果幼树期间一般发枝少,且多分布在剪口下,其它部位常常光秃,有些品种虽然萌芽率高,但成枝力低,不利于幼树成形和早期丰产。为了提高萌芽率,增加枝量,我们于1992年进行试验,现总结如下。 1 试材和方法 1)药剂:北京农业大学配制的发枝素软膏。 2)试区情况,惠农县西永固乡燕窝池村的土壤类型为淡灰钙土,土质为砾质沙土,土层 Branches and growth are the basis of early fruiting and high yielding apple. However, young apples generally have fewer branches and are mostly distributed below the notch, while other parts are often bare. Although some varieties have high germination rate but low branching force, Not conducive to young tree formation and early high yield. In order to improve the germination rate, increase the amount of branches, we conducted a trial in 1992, are summarized as follows. 1 test materials and methods 1) Pharmacy: Beijing Agricultural University formulated hair sticks ointment. 2) In the pilot area, the soil type of bird’s-nest pond in Xiyongguxiang Township of Huinong County is light gray soil, soil is gravel sandy soil, soil layer