1969—1980年,在莫斯科省全苏饲料研究所试验基地上,在取决于湿度和确保土壤有磷和钾的条件下,进行了确定 NPK 最适用量和比例方面的研究。草层由鸡脚草、牛尾草和猫尾草组成。土壤为生草—灰化中壤中等酸性土。每年进行4—5个周期的放牧。研究表明,在禾本科裁培放牧场的施肥系统中,氮肥起着主导作用。根据两次试验平 From 1969-1980, studies were conducted on the optimum application and proportions of NPK at the All-Russia Feedstock Institute test site in Moscow Province, depending on the humidity and ensuring that the soil had both phosphorus and potassium. Grass layer consists of chicken feet grass, oxtail grass and timothy composition. The soil is raw grass - ashed soil medium acid soil. 4-5 cycles of grazing each year. Studies have shown that nitrogen fertilization plays a dominant role in the fertilization systems of grass cutting grazing pastures. According to two test levels