华南引种优质牧草气候适应性的研究

本文对我国南方有发展前途的三种热带牧草和三种温带牧草所历时两年的分期播种试验进行了总结。试验研究表明,热带牧草与温带牧草的生长发育、产草量形成与气象条件关系密切。同时还对热带牧草越冬、温带牧草越夏的气象指标进行了鉴定。分别找到了热带牧草的霜冻指标、平流寒害指标以及温带牧草的热害指标。此外,还对华南引种优质热带牧草和温带牧草进行了气候适应性评价。合理布局问题亦进行了探讨。并提出华南地区建设人工草场宜牧林农结合,中小型为主的观点。

A STUDY ON CLIMATIC ADAPTABILITY OF THE HIGH- QUALITY HERBAGE INTRODUCED IN SOUTH CHINA

The two-year periodic experiments of three kinds of tropical herbage and three kinds of temperate herbage with good prospects in South China are summarized in this article. The study indicates that there is close relation between the growth and output of the herbage and the meteorological conditions. Meanwhile, it also identifies the meteorological indexes for the tropical herbage to survive winter and for the temperate herbage to survive summer. The frost injury index and advection cold injury index of tropical herbage and the hot injury index of temperate herbage are found. In addition, the climatic adaptability of the introduced high-quality tropical herbage and temperate herbage in South China are appraised and the problem of rational layout is also explored. The view-point of the authors is that the artificial pasture in South China should belong mainly to the middle and small types and that agriculture, forestry, and animal husbandry should join together.