How to increase the fresh grass yield and seed yield of ryegrass? Every measure should be implemented in terms of cultivation techniques such as sowing, fertilizing, harvesting, and seed retention. First, sowing ryegrass warm and humid climate, the seed germination temperature of more than 13 °C, seedlings can grow well above 10 °C. Therefore, the sowing date of ryegrass is longer and it can be broadcast in autumn and spring. Autumn sowing is generally available from mid-September to late-November. It mainly depends on the former crop. If dedicated beverage sites can be sowed early, in order to make full use of favorable weather in September and October, efforts will be made to increase the yield of ryegrass; if rice fields are to be planted, they must wait until the late rice is harvested to seize the season and strive to plant sowing in early stages. Variety of fields growing ryegrass. With the delay of the sowing date, due to the decline in temperature after sowing, the emergence of seedlings was delayed, the occurrence of tillering was less and less, the number of fresh grass harvests was reduced, and the yield was reduced. Continuous cropping of late rice began in early November, when planting time was late. Therefore, paddy fields can be interplanted and planted in about the end of October. The symbiosis with rice should not exceed 15 days. Second, the amount of sowing within a certain area, the amount of seeding less, better individual development. However, if the density is too small, it will affect the total fresh grass production per unit area, especially the fresh grass production in the previous period. On the contrary, if the seeding rate is too large, the yield of fresh grass may not be high, and individual growth and development may also be affected. Therefore, only with proper close planting, can the full potential of individual populations of ryegrass be fully exploited, so as to increase the yield per unit area. 1-1.5 kilograms per acre can be optimal. In terms of production, the specific seeding rate should be determined according to the sowing date, soil conditions, seed quality, seedling rate, and purpose of planting. General autumn sowing and planting fields, about 350,000 to 40 thousand basic seedlings per acre, about 1 kilogram sowing, for forage grass use, and when it is necessary to increase the yield in the early stage, it can be broadcasted in a quantity of 2.5-3 kg per mu. . Third, the sowing method ryegrass seed is small, requires a shallow sowing, rice paddy fields have high soil moisture content, soil heavy weight, sowing in autumn is often continuous rain, or labor shortage due to the autumn harvest season. In order to make the ryegrass seedlings grow quickly and neatly, where conditions permit, the use of calcium magnesium magnetic needle fertilizer 10 kg / mu, fine soil 20 kg / acre mixed with the seeds after sowing. In this way, the seeds can be protected from the influence of the wind and the growth of the rice can be avoided, and the reduction of the fine ryegrass seeds into the ground can be avoided, and uniform sowing can be ensured. When the rice board is broadcasted, after the planting, a drainage ditch should be opened every 2-4 meters, and the soil in the ditch should be broken and covered on the surface of the ravine for cover seed use. Fourth, increase fertilization ryegrass undergraduate crops, no nitrogen fixation. Therefore, increasing nitrogen fertilizer is a key measure to give full play to the potential of ryegrass production, especially when used as a beverage, topdressing nitrogen fertilizer every time after cutting green, generally 5 kg/mu urea, so that the department has a long feeding period. With the increase of nitrogen fertilizer application, the total yield of fresh grasses increased, the amount of grasses produced per day also increased, the quality of grasses was also significantly improved, the quality was tender, crude protein was abundant, and the palatability was good. To a certain extent, the ryegrass fresh grass production is not afraid of more fertilizer, more fertilizer, more prosperous production, the more repeated harvesting. It is required that 25-30 kg of superphosphate be applied as basal fertilizer per rye ryegrass field. It is advisable not to apply nitrogen fertilizer to farms. If the seedlings grow particularly badly, a little nitrogen fertilizer should be added. Fifth, harvesting ryegrass has strong regeneration ability and can be harvested repeatedly. Therefore, when ryegrass is used as feed, it should be harvested in due course. The number of times the ryegrass is harvested is mainly influenced by sowing seeds, the temperature during the breeding period, and the fertilization level. The rye grasses sowed in autumn grow well and can be harvested many times. In addition, high levels of fertilization, ryegrass grow fast, can be harvested in advance, while increasing the number of harvest; on the contrary, poor fertility, ryegrass growth is also poor, can not reach a certain amount of biomass in a short time, it can not harvest and use. Timely harvesting, that is, when the ryegrass grows to 25 cm or more, it will be harvested. If the plants are too short, the yield of fresh grass is not high, and the harvesting operation is also difficult. For each harvest, the height of the alfalfa is about 5 cm to regenerate the ryegrass residues. 6. The seed ryegrass seedlings mature after the maturity of the strong grain. Therefore, when the ears of ryegrass grow from green to yellow and the spikelets in the upper middle are yellow, and the spikelets below the spikelets are yellow-green, they should be harvested in time. In order to prevent the grain from falling during harvest, it is best to have dew or rainy harvest in the morning, to be lightly cut, lightly put, spread with drying, threshing, and dried. If farm work is stressful, labor is insufficient, or the weather is not good, if it cannot be promptly threshed and dried, ryegrass should be hung in a dry and ventilated place to prevent mildew and ensure seed quality. Ryegrass seeds have a yield of about 50 kilograms per mu, and can reach 100 kilograms up and down, which can solve about 50-80 acres of field crops. The time for harvesting ryegrass is about the first half of June, so the single-season late rice is reserved for planting land.