Cotton seedling management is the first.

The period from emergence to budding of cotton is called the seedling stage, and the time is 50-50m / m / m for 60 days. If the management at seedling stage is timely and scientific, cotton seedlings will grow healthily, bud early, blossom and boll early, have high yield, good quality and high benefit. If the management is not timely, the growth will be slow, the cotton seedlings will be thin, the budding will be delayed, and the late hair and late ripening will be formed. The main task of seedling management is to promote vegetative growth and achieve early emergence of strong seedlings. The measures of seedling management are "early" first, early seedling management to promote early development, and late seedling early management to fight for early development, so as to lay a good foundation for a bumper cotton harvest.

1. Spraying auxin early to promote rooting and growing leaves.

After the cotton was transferred or when there were 2 leaves of 1 Mel, 3000 times of 1,8% Aido water harvesting agent was sprayed to promote the growth of roots and stems and leaves. 5Mel 6 leaves, use 0,01% Fuzi 60Mel 80ml / mu, add water 50kg foliar spray. Promote root, stem, leaf growth and flower bud differentiation.

2. Help manage and pour wheat in time.

During the flowering and filling period of wheat, if lodging is caused by wind and rain, it should be helped in time to ensure adequate light and ventilation for cotton seedlings.

3. Cure insects early.

The temperature is higher in early spring this year, and the insect pests are more serious than in previous years. The main pests are ground tiger, seedling aphid and red spider. It is very effective to use poison bait to control tigers. The method is as follows: 50kg of wheat bran, 0,5kg of crystal trichlorfon, 0,5kg of vinegar, 15kg of water, dissolve medicine, sweet and sour in water, spray wheat bran while spraying with sprayer, 4MUE 5kg per mu, sprinkle on the roots of cotton seedlings in the evening. In order to protect natural enemies, aphids and red spiders should be used to control aphids. The method is as follows: monocrotophos, oxidized Dongguo or early amine phosphorus, slow release agent 0,1, water 5murmur6 parts. The preparation method is to boil the water, slowly add polyvinyl alcohol, cool and add pesticides after it is all deepened. With a small stick tied to cotton, apply the sustained-release agent to the red-green junction of cotton seedlings. If there is a red spider spot, apply it twice every 5m / m / m every 7 days to kill the eggs and nymphs.

4. Ploughing and stubble cutting in time.

Cotton is a temperature-loving crop, the ground temperature, growing fast, seedling disease is mild. As the agricultural saying goes, "if you hoe early to get warm, do not hoe frequently, and if you hoe deep, deep roots and strong fruit nodes are short." the method is "the head is shallow, the second time is deep, and the hook is used three times." In particular, the third ploughing lies in the words "timely" and "deep".

5. Timely fertilizer and water management.

In cotton fields with sufficient base fertilizer, there is generally no topdressing. If there is not enough base fertilizer, it can be applied with ploughs at the time of stubble destruction, 50 kg per mu of cake fertilizer or 500ml / mu of high-quality agricultural fertilizer and 8kg of urea / 5m / m. Potash fertilizer 10 kg, phosphate fertilizer 20 kg. If the weather is dry, it can be combined with topdressing and timely small or shallow watering to prevent flood irrigation.