The yieldofgrass could be obviously increased by taking measures of fertilization, irrigation, plough and scarification to the retrogressive Leymus grassland.
The irrigating water quota , number of irrigation and frequency of irrigation , which is sure to provide the water in time to the forage grass field and get highly stable yield .
为保证饲草料地土壤水分的适时供给并获得稳产高产所确定的灌溉定额,灌水次数和灌水时间。
3
Grass industry: improvement of natural grassland and planting of grasses high in yield and quality on artificial grassland.