论文部分内容阅读
一,玉米按叶龄促控管理法有什么好处?玉米叶片宽展,层次分明,是从植株外部形态确定生长发育进程最明显的标志。把玉米植株每展现一片叶,称为一个叶龄,植株自下而上按顺序展现的叶片数,就称为第几叶龄。用玉米叶龄作为生长发育进程的标志有什么好处呢?玉米的生命活动是有节奏按顺序地进行,植物体内质和量的变化,都相应地反映在植株外部形态上。对玉米来说,最明显的是表现在叶片的展现上。玉米的生长发育进程则可以“叶龄”来表示。在生产实践中,玉米的生长发育进程,一般划分
First, the corn by leaf age to promote control of the management of any benefits? Maize leaf width, structured, is determined from the external shape of the plant growth and development of the most obvious signs. The corn plants each show a leaf, known as a leaf age, the plant from bottom to top in order to show the number of leaves, called the first few leaf age. What are the benefits of using maize leaf age as a marker of the process of growth and development? The life activities of maize are conducted in a rhythmic order, and changes in the quality and quantity of the plants are correspondingly reflected in the external morphology of the plants. For corn, the most obvious manifestation of the leaves on the show. Corn growth and development process can be “leaf age” to express. In production practice, the growth and development of corn, the general division