The use of transplants for transplanting seedlings is an important measure for the high yield of cotton. Due to the low quality of the seedbed in production, bad seedlings often occur every year in many places, especially when the cotton price is not ideal. This year should pay more attention to this work.
Early selection
High-yield farmers in cotton fields have experience in selecting seedbeds early. If the seedbed is ready 1-2 months before sowing, it can fully dry the soil, eliminate some wintering cotton eggs and larvae, and improve the conditions of water and fertilizer for the seedbed, which is conducive to the cultivation of strong seedlings. The seedbed should not be set in one place year after year to avoid reducing the living soil layer. The ratio of the seedbed to the field is preferably 1:15 for the seedlings and 1:10 for the big seedlings.
Soil preparation must be fine
The extensive preparation of seedbeds, the large gap between soil blocks, and the inability to retain water and fertility, and the uneven bed surface of the nursery beds are also not conducive to the placement of nutrients. Fine soil preparation, especially after the application of base fertilizer, the seedbed should be turned 2-3 times, to promote the full mix of mud fertilizer can also pick up debris and weeds. Car width depends on the circumstances, generally 2 meters wide and 10 meters long is appropriate. After the nursery is well-prepared, leave an aisle and open a drainage ditch around it. The ditch depth is 20 cm and the ditch width is 25-30 cm. The ditch system will be matched to eliminate dark stains on the alum, and the soil on the hammock bed will be dry and strong.
Early application of base fertilizer
Early application of base fertilizer on seedbeds is beneficial to improving the structure of soil aggregates, enhancing the ability to retain water and fertility, and prolonging the time for the integration of mud fertilizers to prevent damage to cotton seedlings. In general, per acre seedbeds should be used to produce 2500-3000 kg of composted soil-fertilizer, or 1000-1500 kg of decomposed human and animal manure. For phosphorus-deficient and potassium-deficient cotton fields, superphosphate 35-40 kg, chlorine should be supplemented per acre seedbed. Potassium 10-15 kg. All fertilizers should be applied 25-30 days before the last planting, but urea should not be used as the base fertilizer to prevent the undecomposed ammonium acetate from being toxic to cotton seedlings.
Disinfection and weeding
A variety of soil-borne pathogens are lurking in the seedbed soil. After the seedbeds are well-prepared, 25% propiconazole EC is used, 5 mL, 2.5% CILO Seed Coating Agent 500 times, or 25% carbendazim 1000-1500 times. Such as the spray disinfection of 30-40 kg of water; cotton seedlings should be sprayed 1:2:200 Bordeaux liquid or 0.01% Bao Zhu, etc. in time to prevent the invasion of foreign pathogens, promote cotton seedlings robust growth. If the newly-selected seedbed is too late to plow, or if no farm manure has been applied, weed seeds will rapidly multiply when they are brought into seedlings. Therefore, before the emergence of cotton seedlings, choose 48% La Cordol 150-200 ml per acre, 23% bed seedlings net emulsion per acre 100-120 ml, spray 80 kg of water.
Cover film protects earth
Before sowing, two true leaves of cotton seedlings should be covered with a film, and two true leaves should be dominated by open films. Before the emergence of plastic film tile, in order to warm the moisture, when the cotyledons unearthed 40% -60% when the arch cover film. If only a small part of cotton seedlings are in the arch, and the temperature in the membrane has risen above 45°C, it is necessary to cool the membrane or raise it in advance. On the first two sunny days after Miao, the film was peeled off to reduce the humidity on the bed. To the first true leaf stage of cotton seedlings, the intra-membrane temperature is maintained at 20°C-25°C, and the membrane is opened at two times during the day and covered at night. After two true leaves of the cotton seedlings, the sunny days cover the night cover, the rainy day covers the membrane, and after 3 true leaves, the film can be removed day and night, and generally it is not covered.
How should I eat maize every day? We need to control the amount of corn, according to the dietary guidelines, the amount of staple food we use in our lives should be controlled at 250 grams to 400 grams, and the ratio of coarse to fine grains is one to three or one to four, which simply means that about 130 grams of corn can be used every day, in addition to the appropriate reduction in the intake of staple food, let's say half a bowl of rice or a steamed bun, so as to avoid excessive calorie intake in our bodies.
It is also important to note that when eating corn, it is advisable to eat the whole cob together to better control our blood sugar. If corn is processed into corn juice or cornmeal food, the nutrients inside are often lost and what remains is basically sugar, which is often higher on the glycemic index and more likely to lead to a rise in blood sugar, for example, the glycemic index of ordinary corn is only 55, but with foods such as cornmeal, the glycemic index often reaches 68, so it is important to eat the right corn.
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