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贵州草种场地处亚热带,潮湿多雨,降雨丰富。主要杂草是短寿命的一、二年生植物和多年生植物。杂草在本地气候、土壤条件的孕育下。长期适应环境,种子自然脱粒性强,发芽率高。生活力强。在建立人工及半人工草地上,杂草发芽时间比优良牧草提前一个月左右,造成优良牧草植株瘦弱,抗逆性差。给畜牧业带来严重的经济损失。如白健杆、黄背芽、黄芽、白芽、乌毛蕨、莲座蕨等蕨类,蒿属、飞蓬属、蓼科、莎草科、灯心草科等饲用价值极低的杂草。在我省天然草场和人工草地中都很普遍。如何控制和抑制这些杂草的发生、发展。提高草场饲用价值,是值得研究的课题。
Guizhou grass field is located in the subtropical humid and rainy, abundant rainfall. The main weeds are short-lived biennials and perennials. Weeds in the local climate, soil conditions under the inception. Long-term adapt to the environment, natural seed threshing strong, high germination rate. Strong vitality. In the establishment of artificial and semi-artificial grassland, weed germination time than good forage about a month earlier, resulting in excellent forage plant thin, poor resistance. Bring serious economic losses to livestock husbandry. Such as white Jiangan, yellow back buds, yellow buds, white buds, black hair fern, rosette ferns and other genus, Artemisia, Scrophulariaceae, Polygonaceae, Cyperaceae, kusnezoff and other feed value very low weeds. In our province natural grassland and artificial grass are very common. How to control and inhibit the occurrence and development of these weeds. It is worth researching to improve the value of pasture feeding.