河南省优良草种区划的探索

通过对河南省主要草种的生物学特点、生态学特点以及经济价值的分析,结合当前农牧业发展对饲草的需要特点的分析,采用系统学优化理论,确定了河南省当家草种应具备的条件,制定了全省草种区划方案。结果表明:适合河南省的当家草种有10种,分别是:紫花苜蓿、沙打旺、苇状羊茅、多年生黑麦草、小冠花、红三叶、杂三叶、鸡脚草、无芒雀麦;适合河南省草业优质发展的草种区域有6个,分别是:豫北平原牧草种植区、豫西北黄土丘陵和太行山地种植区、豫中东低洼平原和南阳盆地种植区、豫西山地种植区、淮南与桐柏山区种植区、豫东平原种植区,并且明确了各区域内以当家草种为核心的草种优化组合。河南省当家草种的制定和草种区划的确定有利于为河南省各地草种的正确选择和草业未来大发展提供理论依据。

The Approach of Planting Division of Fine Forage Plants in Henan Province

Based on the analysis of biological characters, ecological characters and economic values of Henan main forage plants combined with the need of agriculture and animal husbandry in Henan province, criterion of key forage plants as well as that of Henan forage plants planting divisions were put forward in the paper. Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass and smooth brome. Planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects: (1) Northern plain forage planting division; (2) North-west mountain area forage planting division; (3) Middle-east low lying plain and nan-yang basin forage planting division; (4) Western mountain area forage planting division; (5) Huaihe river-south and Tongbai mountain area forage planting division; (6) Eastern plain forage planting division. These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.