Amaranth has strong regenerative capacity, fast growth, and multiple harvests a year. However, in order to prevent high-yield and prevent premature aging, the number of harvesting should be properly controlled, and the relationship between harvesting and rooting, the front and back knives, and the annual output of the year and the next year should be handled to ensure that the plant grows robustly, with high yield and longevity.
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The number of times amaranth is harvested per year should be based on plant growth, soil fertility and market demand. The ability of wintering and the growth of amaranth is closely related to the amount of nutrients accumulated in the plants before winter. The leeks that were born in the past should not be harvested, so that the nutrients can be returned to the roots. If you blindly harvest for the income of the year, it will inevitably affect the wintering of the saplings and the production in the coming year. The spring is green and tender, and the quality is excellent. It can be listed during the spring season. Generally harvested 3-4 times. In the summer, the quality of the leek is poor. Generally, only the cauliflower is collected, but it is covered with a sunshade net to promote growth and improve quality, and can continue to be harvested. The climate in autumn is getting colder, suitable for the growth of leeks, and the eucalyptus can be harvested 2-3 times. However, if the glutinous rice is produced in winter, it will be harvested less to facilitate the storage of nutrients in the rhizome. In winter, the barley, which is harvested in the autumn, is covered with anti-freezing before the frost and snow and ice weather, and is available for winter harvest. The number of days of leek harvesting depends on the growth of the plant and the weather at that time. Generally , the first knife can be cut after about 20 days of springing in the winter . The second knife is separated by 25-30 days, and the third knife is separated by 20-25 days. The plant height is 30 cm and the plant 7 leaves and 1 heart are suitable. Early harvest is prone to premature aging, low yield; late harvest is easy to fall. If the water is not enough, the number of days per raft will be extended.
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Harvest the leeks in the morning, avoid the hot noon and rainy days to keep the product fresh. After each harvest, it is advisable to cover the cutting mouth with a layer of moist vegetation ash in time to facilitate the growth of the sorghum, especially in summer or rainy days. Harvesting methods can affect the yield of alfalfa, leaf growth and yield of mandible. The height of the stubble is 3-4 cm on the bulb, and it is better to cut the knife at the beige sheath. Do not injure the "cucurbit" ( ie bulb ) . If the lower knife is too high, the yield is reduced, and the bulb is too low, which affects the tillering of the plant and the subsequent yield. Each knife should be about 1 cm higher than the upper knife . It is beneficial to the growth of the jaw. The harvest of amaranth is lower in 1-2 years after planting , and declines after 3-5 years. If it is well managed, it can last for many years and prolong the high-yield year.
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Author: Hongxing
Source of information: Hebei Science and Technology News
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