From late May to early June, the author went to the Hanchang City, Hubei Province, Qidong Cotton Breeding Farm Xinle, Nihu, Changxingpu, Hongyu Brigade (village), Leizu Village, Miaotou Town, Xiaonan District, Dinggang A survey of the main cotton producing areas in the town of Shengli Village and Xinjiao Village in Xiaodian Street, Caidian District, Wuhan City, found that due to the continuous drought that has rarely been seen in history, the growth of cotton in different parts of the country is very different. The earliest cotton seedlings have 6~ The 7th layer of fruit branches, the smallest cotton seedlings only have 3 to 4 true leaves, and the difference in seedling age is about 30 days. This brings certain difficulties to the management of cotton fields this year and increases the difficulty of high cotton yield.
What is the disparity between cotton seedlings growing so long? The reasons are of course many:
The first is that the time for sowing cotton seedlings is not the same. The earliest seeds were planted at the beginning of April and sown at the latest in late April. The early sowing and late sowing of cotton seedlings developed sooner or later.
Second, the types of base fertilizers are different. Applying organic fertilizers of decomposed poultry and livestock manure as the base fertilizer will ensure good protection of the crop. The cotton seedlings will develop greatly ahead of time under good lighting conditions.
The third is that the nutrient-bonded cotton seedlings are better than the hole-laying and transplanting methods. The hole-knocking transplanting method is less effective than paddy field transplanting. The height of the seedling is 2.4 cm, and the true leaves are less than 0.9. Less than 1.3 cm in width.
The fourth is that large shoots (8 cm in diameter) are younger than the smaller ones (5 cm in diameter).
Fifth, it is early to develop the cotton seedlings with no fertilizer at the end of the season, and there are 3 to 4 pieces of cotton seedlings that show signs of fertilizer damage.
Sixth, after the transplanting of cotton seedlings, the seedlings of drought-resistant topdressing should be promptly delayed, and the cotton seedlings without drought-resupplied fertilizers after development should be poorly developed.
Seventh, the cotton seedlings transplanted in the cotton planted by Mailin were earlier developed, and the seedlings transplanted after wheat harvest were worse.
Eighth, transplanted cotton seedlings covered with mulching film (also known as double-film transplanting seedlings) were developed earlier than transplanted cotton seedlings.
In general, this year's large-scale cotton seedlings are five to seven days later than usual, and the level of cotton seedlings is worse than the average year-round. In order to accelerate the development of cotton seedlings, it is necessary to promote balanced growth of cotton through fertilizer, water and chemical regulation. Full harvest.
One, cotton seedlings catch up with time. After the cotton enters three true leaves, the flower buds begin to differentiate and have a basis for accelerating growth and development. As long as good ecological conditions for fertilizer and water are created, the space for compensating cotton in the later period is very large.
Second, to promote the main fight for early seedlings. Late emergence of cotton is the main contradiction, the former crop has been harvested, it is necessary to pay close attention to raising the seedlings. Recently, there have been varying degrees of rainfall in various areas. Try to use water-based fertilizers as soon as possible, and top-up Miaofei quickly. Miaofei is mainly based on available fertilizers, and ammonium bicarbonate, urea, and fresh water can be used as feces. When no base fertilizer is applied, it will be supplemented when robbed, of which multiple compound fertilizers will be the main, and about 30 pounds of potash will be used per acre. In order to speed up the fertility process, a "800" plant growth regulator can be used to irrigate cotton seedlings, with "802" per 100 ml of 100 ml, watered with 800-1200 pounds of water; two can use Huimanfeng or Zhuangfuxing active liquid fertilizer, per acre. 30 ml, 30 pounds robbed and sprayed with water; three can be used to protect the carp or Tian Feng prime and other accelerants, 30 ml per mu watered 30 pounds.
Third, chemical regulation is stable and long. The year of normal growth, from late June to early July, is most prone to growth or madness. If the control is not good, it can easily lead to premature aging. After the rainfall, some cotton fields that have been fertilized in some areas will soon appear prosperous or grow mad, and they must be stabilized with long-term use of authentic dilute amines or boosters. Prosperity or madness may be postponed for a long time this year, but it must be prepared as early as possible. To adjust the tone to grasp the former light and heavy, a small number of times the principle of the use of dilute amine and booster prime ratio of 1:4, that is, 1 g of dildoamine or 4 milliliters of melatonin, can not be used indiscriminately. It's easy to make mistakes if you don't master it well.
What is the disparity between cotton seedlings growing so long? The reasons are of course many:
The first is that the time for sowing cotton seedlings is not the same. The earliest seeds were planted at the beginning of April and sown at the latest in late April. The early sowing and late sowing of cotton seedlings developed sooner or later.
Second, the types of base fertilizers are different. Applying organic fertilizers of decomposed poultry and livestock manure as the base fertilizer will ensure good protection of the crop. The cotton seedlings will develop greatly ahead of time under good lighting conditions.
The third is that the nutrient-bonded cotton seedlings are better than the hole-laying and transplanting methods. The hole-knocking transplanting method is less effective than paddy field transplanting. The height of the seedling is 2.4 cm, and the true leaves are less than 0.9. Less than 1.3 cm in width.
The fourth is that large shoots (8 cm in diameter) are younger than the smaller ones (5 cm in diameter).
Fifth, it is early to develop the cotton seedlings with no fertilizer at the end of the season, and there are 3 to 4 pieces of cotton seedlings that show signs of fertilizer damage.
Sixth, after the transplanting of cotton seedlings, the seedlings of drought-resistant topdressing should be promptly delayed, and the cotton seedlings without drought-resupplied fertilizers after development should be poorly developed.
Seventh, the cotton seedlings transplanted in the cotton planted by Mailin were earlier developed, and the seedlings transplanted after wheat harvest were worse.
Eighth, transplanted cotton seedlings covered with mulching film (also known as double-film transplanting seedlings) were developed earlier than transplanted cotton seedlings.
In general, this year's large-scale cotton seedlings are five to seven days later than usual, and the level of cotton seedlings is worse than the average year-round. In order to accelerate the development of cotton seedlings, it is necessary to promote balanced growth of cotton through fertilizer, water and chemical regulation. Full harvest.
One, cotton seedlings catch up with time. After the cotton enters three true leaves, the flower buds begin to differentiate and have a basis for accelerating growth and development. As long as good ecological conditions for fertilizer and water are created, the space for compensating cotton in the later period is very large.
Second, to promote the main fight for early seedlings. Late emergence of cotton is the main contradiction, the former crop has been harvested, it is necessary to pay close attention to raising the seedlings. Recently, there have been varying degrees of rainfall in various areas. Try to use water-based fertilizers as soon as possible, and top-up Miaofei quickly. Miaofei is mainly based on available fertilizers, and ammonium bicarbonate, urea, and fresh water can be used as feces. When no base fertilizer is applied, it will be supplemented when robbed, of which multiple compound fertilizers will be the main, and about 30 pounds of potash will be used per acre. In order to speed up the fertility process, a "800" plant growth regulator can be used to irrigate cotton seedlings, with "802" per 100 ml of 100 ml, watered with 800-1200 pounds of water; two can use Huimanfeng or Zhuangfuxing active liquid fertilizer, per acre. 30 ml, 30 pounds robbed and sprayed with water; three can be used to protect the carp or Tian Feng prime and other accelerants, 30 ml per mu watered 30 pounds.
Third, chemical regulation is stable and long. The year of normal growth, from late June to early July, is most prone to growth or madness. If the control is not good, it can easily lead to premature aging. After the rainfall, some cotton fields that have been fertilized in some areas will soon appear prosperous or grow mad, and they must be stabilized with long-term use of authentic dilute amines or boosters. Prosperity or madness may be postponed for a long time this year, but it must be prepared as early as possible. To adjust the tone to grasp the former light and heavy, a small number of times the principle of the use of dilute amine and booster prime ratio of 1:4, that is, 1 g of dildoamine or 4 milliliters of melatonin, can not be used indiscriminately. It's easy to make mistakes if you don't master it well.
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