1. For cotton fields with dense top fruit branches and only one big bud on the fruit branches, immediately spray 2% urea solution, spraying more than 15 kilograms per mu, spray the upper leaves thoroughly, spray once every 3 days, spray 3 times. Can add pesticides and control insects. You can't just water, if you are watering, you can sprinkle 5 to 7.5 kg of urea per mu on the ground, and then melt and seep as you pour. The available nitrogen in the soil is preferentially supplied to the middle part of the flower and boll during the blooming season. In order to ensure that the upper part of the bell is effective, the leaves must be sprayed with urea.

2. For cotton fields with large leaves and dark leaf colors, stop spraying benzidine immediately. The leaves are always dark green and there is a high risk of late maturity. If the color does not fade, manual intervention is required as soon as possible. Foliar sprays of "superphosphate" can weaken vegetative growth. If there is no "superphosphate", it can be relieved by spraying pure product "potassium dihydrogen phosphate". For cotton fields that have grown stagnant due to excessive chemical control, spray "920+ urea" immediately to resolve them, so as not to delay the precious blooming time.

3. Canopy cotton fields with excessive vegetative growth, large and large leaves, and no ventilation and light transmission can easily cause buds and bells to fall off and breed pests and diseases. Under the condition of not much cotton planting and manpower conditions permitting, each plant can remove 3 to 4 leaves.

4. For the control of cotton bollworm and aphid, effective agents and spraying methods can be adopted according to the situation of each cotton planter.

After cotton enters the blooming period, on the one hand, the reproductive growth is accelerated, and the vegetative growth continues, and new leaves, new internodes and new fruit branches are grown. The two are both complementary and contradictory. Coupled with changes in weather, it not only affects the growth of cotton, but also directly affects the results of operations and operations.

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