After mid-August, cotton enters the late stage of the flowering and bolling period. This period is mainly characterized by the formation of a large amount of autumn peach in the middle and upper part of the cotton field, and a large number of bolls in the field enter the internal enrichment period. During this period of time, temperature, nutrients, and moisture have a great influence on the development of seeds and fibers. Attention should be paid to the following aspects in field tubes.

First, continue to control cotton aphid, cotton leafhopper and cotton bollworm. Can choose 50% carbendazim + new high fat film 800 times liquid or 65% dexamethasone + new high fat film 800 times, interval 7-10 days, even spray 3-4 times, in case of rain should be after the rain Make up in time.

Second, strengthen water and fertilizer management in cotton fields. Pay attention to drought prevention and premature aging. This period should be filled with water and peach. For the premature aging of the cotton field, foliar fertilizer should be sprayed in time, such as potassium dihydrogen phosphate, trace elements, etc. for extra-root fertilizer. Real-time root irrigation + micro-fertilizer can induce the absorption, digestion, and release of nitrogen, phosphorus, potassium and various trace elements in the soil, and improve the positive development of bolls and optimize the quality of bolls.

Third, push the strain and ridge. For the high density, the plant higher cotton field should push the two adjacent cotton plants to the two sides in the broad line, and lightly step on the base of the cotton plant stem to make the shape of the figure eight. The general tree should be sprayed and the cotton Zhuang Tiling should be sprayed. In the leaves of cotton plants and in the middle and upper parts of green bells, the nutrient delivery volume of bolls is enhanced, the expansion vitality is increased, the buds of cotton trees are accelerated, the bolls are recycled, the fiber quality is improved, and at the same time, the external diseases and insects are prevented from being invaded by cotton. Resist, reduce unnecessary losses.

Fourth, timely spraying new high fat film. If the temperature is low in the autumn, the new high-fat membrane + ethephon should be sprayed appropriately for the greedy green and late mature cotton. The time is generally around September 20, and the specific dosage is 100-200 g/mu (40% of active ingredient), and the concentration is 800- 1500 kg/mu, the new high fat film is 600-800 times liquid, with the use of the same, evenly sprayed on cotton bolls to prevent the spread of plant viruses.

Greenhouse Film Manual Roll Up

The Greenhouse Film Electric Roll-Up Unit replacing traditional manual roll-up unit to reach high speed automation in revolving & releasing films and greenhouse environment, it is the new generation of greenhouse ventilation and temperature regulation facilities. Portability, output torque, output lock, wide range and precise adjustment, waterproof, dew-proof and power-saving are the key characteristics for Electric Roll-Up Unit, which is the best choice for modern daylight greenhouse applied in different climates.

Greenhouse Film Manual Roll Up,Greenhouse Manual Winch,Greenhouse Side Film Roll Up

JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.thgreenhouse.com