What is the sowing amount of cotton per mu?

The sowing amount per mu is 1 ~ 1.5 kg, and the sowing amount per mu of hybrid cotton machine is 0.6 kg.

Timely sowing is the key measure to ensure the stable growth of plants and early budding and flowering, which is beneficial to the early maturity, high quality and high yield of dry cotton. Generally, it is appropriate to sow when the ground temperature of 5cm stably passes 16C, and the time is around April 20th.

Choose a precision seeder, cotton cotyledon hypertrophy, poor topping ability, sowing depth is generally controlled at 3~4cm. Sowing is too deep, it is difficult to cover the soil, the temperature is low, seedling emergence is slow, nutrient consumption is high, and seedlings are thin, even resulting in rotten seeds, rotten buds and lack of seedlings; Sowing too shallow is easy to dry, and it will also cause lack of seedlings and broken ridges.

Extended data:

According to different planting densities, pruning should be reasonable. When you see fruit branches and leaf branches, you should remove the leaf branches, but keep the big leaves at the lower part of the main stem, and leave 1~2 leaf branches where there are missing seedlings and broken ridges.

We can simplify pruning and leave 1~3 branches, which can not only make full use of space, but also make peaches set early and prevent excessive growth of nutrients. Hybrid cotton does not need pruning because of its large row spacing and small number of plants, leaving 3~5 leaves.

Topping and pruning shall be carried out in time, and the topping time shall be July 20th15 ~ 20th. When a single plant reaches 14 fruit branches, it shall be no later than the beginning of autumn. In August 10, the lateral heart was picked, the extra buds were smeared, and the empty branches were removed, so as to achieve the goal of peach waist-covering and autumn peach topping.

References:

Baidu encyclopedia-cotton