The white clover is leguminous clover, a perennial herbage. The stems and vines grow, 30-60 cm long, the main root is short, the lateral roots are well developed, and there is nodules nitrogen fixation. White clover is a cool and humid climate, which is more shade-tolerant, moisture-resistant, heat-resistant and cold-resistant than red clover. Southern mountains, hills, and fruit tea gardens can all be planted. Strict requirements on the soil, strong acid resistance, can also be grown in the pH 4.5 soil, not saline. White clover fresh grass rich in protein content, a variety of livestock and poultry to eat. Each year, fresh grass can be cut 3-4 times, and the general mu yield is 3000-4000 kg.

First, the growth characteristics of white clover
1, perennial plants. White clover is a perennial plant that, if properly managed, can grow for more than 10 years.
2, good resistance to negative. It can grow normally in a 30% light transmittance environment and is suitable for planting in orchards such as citrus.
3, good occupation. White clover has more developed lateral roots and stolons after it reaches the plateau, and has stronger competitive power than other weeds.
4, to adapt to a wide range. With a certain degree of cold and heat resistance, the range of soil pH requirements is wide, reaching 4.5-8.5. PH values ​​of more than 99% of soil in Lishui City are below 7, and there is no problem in planting in Lishui.
5, high ornamental value. The flowering is early, the flowering period is long, the shape of the leaf is beautiful, and a good landscape effect can be obtained after entering the ping. The 30 mu of white clover planted in Taoyuan of Jiukeng Village in Liantu District has shown good ornamental effect, attracting many people to view peach blossoms, enjoy greenery, and take pictures. The pictures taken are very beautiful in color.

Second, the cultivation of white clover
1, sowing and seed processing. The best time for white clover sowing is spring and autumn. The optimum growth temperature is 19-240C. The spring sowing can be from the end of March to the end of April, and the temperature can be stabilized above 150°C. Autumn sowing is generally from the middle of September. Before sowing, the seeds should be soaked, with 1.5 kilograms of water per kilogram of seeds, 1 gram of ammonium molybdate for 12 hours, and 5-10 kilograms of calcium, magnesium, phosphate, or 5-10 kilograms of yellow sand.

2, site preparation. The white trifoliate seeds are small, and the top soil of the seedlings is poor. Before sowing, the ground must be leveled and fined to facilitate emergence. In areas where the soil is heavy and the amount of precipitation is large, drainage should be done to facilitate drainage. For the cultivation of fresh grasses in mountainous areas, it is better to choose a more shaded area or a more moist soil. Before planting, the orchards must interplant weeds and rows of fruit trees before planting, level the land, and sow 1-2 days before raining.

3, planting methods. Fruit trees can be planted between rows, and they can be broadcasted and drilled. The spacing is 15 centimeters apart. Sowing should not be deep enough, usually 0.5-1.5 cm. Unicast, 0.5-0.75 kg per acre sowing rate, sowing or drilling, drilling 30 cm spacing. After dressing with equal amounts of fertile soil, sowing is better. Mixing sowing with the straw, ryegrass, etc., the sowing amount is reduced appropriately. Seedlings should be cleared of weeds in time to facilitate the formation of white clover.

4, fertilization. White trilobite is a leguminous plant and has its own nitrogen fixation ability, but no rhizobial bacteria have been generated in the seedling stage. It is necessary to add a small amount of nitrogen fertilizer. A small amount of nitrogen fertilizer is beneficial to strong seedlings, and increasing phosphorus and potassium fertilizers have a good effect on yield increase. After waiting for ping, you only need to add phosphorus and potassium fertilizers. Before sowing, apply 20-25 kilograms of calcium phosphate per acre and a certain amount of manure as base fertilizer. When the emergence of plants dwarf, yellow leaves, to apply a small amount of nitrogen fertilizer, generally 15 days after emergence of urea 2.5 kg, potassium 5 kg, calcium magnesium phosphate 5 kg, to promote strong seedlings, increase the amount of grass production.

5. Field management. The white trifoliate seedlings grow slowly and are vulnerable to weeds. The weeds should be diligently removed during the seedling stage, and should be so in spring sowing. Sowing in September, budding and flowering in April of the following year, full bloom in mid-May, flowering grass layer height 15-20 centimeters, is the appropriate period of castration. The regeneration ability is strong after the planting and quickly forms a grass layer covering the grass. In the hot season, the white clover stops growing. In the 2-3 years after the formation of the grass cover, large weeds should be removed in time. If the lack of seedlings occurs due to high temperature and drought in summer, it can be replanted in autumn to restore grassland productivity. If a large area is planted as a grazing land, light grazing can be carried out for 1-2 months after sowing and 20-25 cm in weed height to suppress the growth of weeds. White trifoliate disease is less, but the harvest is not timely, there are sometimes brown spot, powdery mildew, can be used first castration, and then Bordeaux liquid, lime sulfur or carbendazim and other control.

6, cut grass use. When the height reaches 20 centimeters or so, mowing the grass can cut 3-4 times a year. When mowing the grass, it should be no less than 5 centimeters to facilitate regeneration. The grass trees cut off or between trees were rotted into organic fertilizer before winter. White clover fresh grass rich in protein content, a variety of livestock and poultry to eat. White clover is often used as the main grass species on pastures. The use of white clover and other clover and ryegrass to build mixed sowing grass, cattle and sheep grazing. In the middle and lower reaches of the Yangtze River, pigs, cattle, and fish are grazing. White clover is resistant to trampling, rapid expansion, and strong competitiveness with weeds. Moderate grazing is conducive to the growth of white clover and the formation of grass layers. Livestock and poultry

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