Before introducing color cotton, we must first understand the market demand, so that sales can be set. Because the price of colored cotton is several times that of white cotton, only a certain degree of output and quality can be achieved, and the market has a market, and agricultural and planting can be encouraged wherever conditions permit. Before the introduction, it is necessary to sign the underwriting contract with the purchasing unit, the cotton spinning enterprise and other relevant departments, comply with the order and request for selection of varieties and discriminate the planting area, so that there is a calculation and organization of commercial production. If you do not have planting conditions and do not find a good market, it is best not to introduce them, so as to avoid unnecessary economic losses. Color cotton cultivation techniques mainly include the following points:
To draw materials locally, choose high-quality varieties
At present, there are many varieties of colored cotton, and the quality of seeds varies greatly. There are great differences between the characteristics of varieties and cultivation techniques, as well as between suitable regions. Therefore, it is necessary to draw materials locally to select species suitable for the local climate, soil, and other conditions. At present, the varieties that have been used for production in China are divided into two types according to color: brown (such as brown flue 1-4, new colored cotton No. 2), and green (such as new colored cotton No. 3, Xiang colored cotton 89, etc.). The rest of the varieties are still in the breeding stage and cannot be used for production. Do not use them. In the Yellow Sea region of China, conditions such as climate, water and fertilizers are better, and cross-breeding species should be selected as far as possible so as to improve yield and character and increase economic benefits.
Choose lands with good conditions for water and fertilizer, and concentrate plantings in isolation
In order to ensure high quality and high yield of colored cotton, it is necessary to choose land plots with flat terrain, deep soil, fertile land and good irrigation and drainage conditions. In order to avoid natural hybridization, color degradation and miscellaneous, different colored cotton should be concentrated and isolated. Cotton belts shall be surrounded with white cotton and the rest of the colored cotton fields with a belt width of 500 meters or more to prevent pollination of colored cotton and white cotton and colored cotton of different colors, resulting in mixed. If colored cotton and white cotton are mixed, or colored cotton of different colors is mixed, not only the colored cotton loses its own value, but also the white cotton is greatly degraded by the color cotton color pollution. At the same time, it is necessary to timely remove the miscellaneous strains during the whole growth period of colored cotton so as not to cause confusion.
Cultivate strong seedlings and transplant them properly
At present, the price of colored cotton seeds is relatively high. In order to save the seeds and ensure that the seedlings are fully grown, homogeneous, and strong, they should actively promote the cultivation of seedlings from the end of March to the beginning of April, and strengthen seedbed management after seeding to cultivate strong seedlings. The criteria for strong seedlings are: seedling age 30 days, true leaves up to 3, red stems just over half, and leaf greens without lesions. The field was transplanted in early May. In order to avoid weeding and increase seedling growth, transplanting should be conducted according to a predetermined spacing and trenches should be deepened and basal fertilizer should be deepened. After applying the basal fertilizer, the ground is leveled, after which the herbicide is sprayed: 72% of Dole EC per acre, 100 ml of 25% chlorotoluene, or 25% of acetochlor, 100 ml of water, 25 kg of water, evenly After spraying the ground, cover the mulch and then punch and transplant cotton seedlings.
Reasonable dense planting, moderate control
Generally, the coloring cotton individuals are smaller than white cotton. Under the same ground conditions, the planting density should be increased by 5-7% compared to white cotton. The density of conventional colored cotton is usually 4000-4500 plants per mu, and the density of hybrid colored cotton is 3000-3500 plants per mu. In order to make the cotton plants evenly received light, in order to facilitate the even coloring of cotton bolls, it is advisable to adopt other lines for planting. Conventional color cotton spacing 80 cm, hybrid color cotton spacing 100 cm is appropriate. Due to weaker growth of conventional cotton, field management should be promoted mainly, supplemented by chemical control; Hybrid colored cotton is stronger than conventional colored cotton, and the number of chemical control can be appropriately increased.
Re-applying organic fertilizers and rationally applying chemical fertilizers
Colored cotton fertilizer is similar to conventional white cotton. Hybridized colored cotton has a greater potential for yield increase, and the amount of fertilizer applied should be 10-20% higher than conventional colored cotton. Fertilization should be based on the principles of organic fertilizer, supplemented by chemical fertilizers, application of basal fertilizer, and proper early recovery of chemical fertilizers in mid-fertility. Basal fertilizer should be dominated by farmyard fertilizers, 2000 kg of farmhouse manure per mu, plus 20 kg of urea, 40 kg of superphosphate and 10 kg of potassium chloride. Hua bell fertilizer early to early flowering topdressing, urea 20 kg per mu, potassium chloride 10 kg. In the later period, it is timely to apply top dressing fertilizer, and it is advisable to apply 1-2% urea solution to the leaves for 2 times during the top cover fertilizer, with an interval of 7-8 days between the two.
Comprehensive control of pests, science picking cotton
Compared with conventional plain white cotton, cotton bollworm and cotton aphid usually have lighter damage, and cotton red spider has more damage than regular white cotton. In the prevention and control of pests, we must take comprehensive measures to minimize the use of chemical pesticides in order to facilitate the improvement of the fiber character.
Do not pick up cotton bolls after prematurely, to make the cotton boll full cracking, to the shell monotonous standard picking is appropriate. If the weather is fine and no rain, drying 1-2 days to pick better, so that the cotton color is pure and beautiful.
To draw materials locally, choose high-quality varieties
At present, there are many varieties of colored cotton, and the quality of seeds varies greatly. There are great differences between the characteristics of varieties and cultivation techniques, as well as between suitable regions. Therefore, it is necessary to draw materials locally to select species suitable for the local climate, soil, and other conditions. At present, the varieties that have been used for production in China are divided into two types according to color: brown (such as brown flue 1-4, new colored cotton No. 2), and green (such as new colored cotton No. 3, Xiang colored cotton 89, etc.). The rest of the varieties are still in the breeding stage and cannot be used for production. Do not use them. In the Yellow Sea region of China, conditions such as climate, water and fertilizers are better, and cross-breeding species should be selected as far as possible so as to improve yield and character and increase economic benefits.
Choose lands with good conditions for water and fertilizer, and concentrate plantings in isolation
In order to ensure high quality and high yield of colored cotton, it is necessary to choose land plots with flat terrain, deep soil, fertile land and good irrigation and drainage conditions. In order to avoid natural hybridization, color degradation and miscellaneous, different colored cotton should be concentrated and isolated. Cotton belts shall be surrounded with white cotton and the rest of the colored cotton fields with a belt width of 500 meters or more to prevent pollination of colored cotton and white cotton and colored cotton of different colors, resulting in mixed. If colored cotton and white cotton are mixed, or colored cotton of different colors is mixed, not only the colored cotton loses its own value, but also the white cotton is greatly degraded by the color cotton color pollution. At the same time, it is necessary to timely remove the miscellaneous strains during the whole growth period of colored cotton so as not to cause confusion.
Cultivate strong seedlings and transplant them properly
At present, the price of colored cotton seeds is relatively high. In order to save the seeds and ensure that the seedlings are fully grown, homogeneous, and strong, they should actively promote the cultivation of seedlings from the end of March to the beginning of April, and strengthen seedbed management after seeding to cultivate strong seedlings. The criteria for strong seedlings are: seedling age 30 days, true leaves up to 3, red stems just over half, and leaf greens without lesions. The field was transplanted in early May. In order to avoid weeding and increase seedling growth, transplanting should be conducted according to a predetermined spacing and trenches should be deepened and basal fertilizer should be deepened. After applying the basal fertilizer, the ground is leveled, after which the herbicide is sprayed: 72% of Dole EC per acre, 100 ml of 25% chlorotoluene, or 25% of acetochlor, 100 ml of water, 25 kg of water, evenly After spraying the ground, cover the mulch and then punch and transplant cotton seedlings.
Reasonable dense planting, moderate control
Generally, the coloring cotton individuals are smaller than white cotton. Under the same ground conditions, the planting density should be increased by 5-7% compared to white cotton. The density of conventional colored cotton is usually 4000-4500 plants per mu, and the density of hybrid colored cotton is 3000-3500 plants per mu. In order to make the cotton plants evenly received light, in order to facilitate the even coloring of cotton bolls, it is advisable to adopt other lines for planting. Conventional color cotton spacing 80 cm, hybrid color cotton spacing 100 cm is appropriate. Due to weaker growth of conventional cotton, field management should be promoted mainly, supplemented by chemical control; Hybrid colored cotton is stronger than conventional colored cotton, and the number of chemical control can be appropriately increased.
Re-applying organic fertilizers and rationally applying chemical fertilizers
Colored cotton fertilizer is similar to conventional white cotton. Hybridized colored cotton has a greater potential for yield increase, and the amount of fertilizer applied should be 10-20% higher than conventional colored cotton. Fertilization should be based on the principles of organic fertilizer, supplemented by chemical fertilizers, application of basal fertilizer, and proper early recovery of chemical fertilizers in mid-fertility. Basal fertilizer should be dominated by farmyard fertilizers, 2000 kg of farmhouse manure per mu, plus 20 kg of urea, 40 kg of superphosphate and 10 kg of potassium chloride. Hua bell fertilizer early to early flowering topdressing, urea 20 kg per mu, potassium chloride 10 kg. In the later period, it is timely to apply top dressing fertilizer, and it is advisable to apply 1-2% urea solution to the leaves for 2 times during the top cover fertilizer, with an interval of 7-8 days between the two.
Comprehensive control of pests, science picking cotton
Compared with conventional plain white cotton, cotton bollworm and cotton aphid usually have lighter damage, and cotton red spider has more damage than regular white cotton. In the prevention and control of pests, we must take comprehensive measures to minimize the use of chemical pesticides in order to facilitate the improvement of the fiber character.
Do not pick up cotton bolls after prematurely, to make the cotton boll full cracking, to the shell monotonous standard picking is appropriate. If the weather is fine and no rain, drying 1-2 days to pick better, so that the cotton color is pure and beautiful.
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