论文部分内容阅读
引言近十年来,大多数种植果树的国家,果树种植体系有了迅速发展。由于栽植密度加大,获得了早结果和丰产。栽植方式和树的密度常规设计试验需要很大的面积和很多保护树,这样,处理间的距离加大,因而所得结果往往无说服力。由Verheij(1970)提出的一个单株小区的设计,被选来进行苹果植距试验。本试验的主要目的是研究在各种株距和行距条件下树的生长和最高产量。同时,本设计还想提供有关
Introduction In the past decade, most countries planting fruit trees have witnessed rapid growth of fruit tree planting systems. As the planting density increased, early results and high yield were obtained. Planting Modes and Tree Density Routine design tests require large areas and many protected trees so that the distance between treatments increases and the results obtained are often not convincing. The design of a single-cell plot proposed by Verheij (1970) was chosen for apple-shoot testing. The main purpose of this experiment was to study the tree growth and maximum yield under various spacing and spacing conditions. At the same time, this design also want to provide relevant