天山北坡低山春秋场优势种牧草的再生性能──Ⅱ．春秋牧场的合理利用  

Regeneration of Some Dominant Grasses in Spring- Autumn Pasture in Low Belt of Nortbern Tlanshan Mount Ⅱ.Rational Utilizatlon for Spring- Autumn Pasture.

作　　者：李振武[1] 许鹏[1] 

机构地区：[1]中国科学院新疆生物土壤沙漠所,新疆八一农学院

出　　处：《中国草地》1994年第2期45-48,40,共5页Grassland of China

摘　　要：分析分区轮牧要素——放牧频率、放牧期及其开始、终了时间是研究分区轮牧方案，合理利用天然草地的前提，各次再生草产量分配是制定分区轮牧方案的基础。春季安排适当的多次利用有利于充分利用牧草资源，促进牧草的再生能力，秋季只能利用一次。试验地区春季适宜的放牧时期为四月一日至六月二十日，秋季为九月十五日至十一月十五日。在此基础上摸拟出分区轮牧方案可指导畜牧业生产。Analysis of main factors grazing frequency and grazing period (include starting and clos-ing times)is a prerequisite for studying rotational grazing. Meanwhile, allocation of re-growth yield is the basis for making the schedule. Proper poly-times utilization in spring is beneficial to rational utilization of grass resources and to the promotion of grass regeneration vigor.It is allowed to grazing only once in autumn. Preper grazing period is April 1 to June 20 in spring and Sep.15 to Nov.15 in autumn in the trial area.The program of rotational grazing based on above system is significant for rational utilization of natural grassland。

关 键 词：牧草 再生 分区轮牧 优良品种 

分 类 号：S812.4[农业科学—草业科学]