Key points of organic cultivation of green manure ryegrass

Ryegrass (Italian ryegrass) is a perennial herbage with a general growth period of 1 to 2 years. The fibrous root is well developed, the base is tufted, and the plant height is 90 to 130 cm. The leaves are long and wide, dark green and glossy, curved and drooping. Ryegrass likes warm and humid climate, fertile soil, but also suitable for clayey soil and red soil, the most suitable PH value for soil is 6 to 7.

Ryegrass is of good quality and palatability, not only cattle, sheep, pigs, rabbits, geese, chickens and other livestock and poultry like to eat, but also a good feed for grass carp. Ryegrass has great potential to increase production. Under the condition of better water and fertilizer conditions and early sowing, the yield of fresh grass per mu can reach about 10,000 kg. At the general level of fertilization management, the yield per mu is also about 5000 kg.

Ryegrass can be sown in spring and autumn during sowing time. Autumn sowing has more harvesting times and higher total yield, while spring sowing can prolong the harvest utilization period, and the grass is fresh and tender, but the total yield is lower. The sowing time of autumn sowing is from early September to mid-late November, and spring sowing is in early February.

Sowing operation apply pig pen fertilizer 1000 to 1500 kg per mu before sowing. If there is no pig pen fertilizer and other organic fertilizer, 25 to 30 kilograms of calcium magnesium phosphate fertilizer can be applied per mu as base fertilizer. After fertilizing, plough and prepare the land to make beds. Ryegrass seeds are small, requiring the border surface to be flat without large soil clods. The way of sowing is either strip sowing or spreading, but for the convenience of management, strip sowing is better. The amount of seed used per mu is about 1.5 kg. If there is less rain or the soil is dry during the sowing period, the seeds can be soaked in clean water for 2 to 4 hours to facilitate seedling emergence and improve the seedling rate.

The management of ryegrass seedling stage should be timely ploughing and weeding. After the peak tillering period, the line has been closed for shade, but no more weeding. After each harvest, a small amount of nitrogen fertilizer should be applied to accelerate regeneration and increase yield. Attention should be paid to the harm of tigers and mole crickets at seedling stage, and "poison silk" pesticides should be used for prevention and control if found.

The height of the grass layer for harvesting ryegrass is about 30 cm. The harvest sooner or later, times and yield are not only related to fertilizer and water management conditions, but also affected by sowing date. If sown in early autumn, it can be cut once or twice this year, and about 4 times from the Beginning of Spring to Lesser Fullness of Grain the following year. Those sown in October, if well managed, will be cut once in the year and 2 to 3 times after the year. Spring sowing can be cut three times by the beginning of June. Farmers may arrange the sowing time reasonably according to the situation of livestock and poultry breeding.