Floods In The Mainland Affected Cotton Growth

In June 2016, cotton growers' Cooperative Association of China Cotton Association and Xinjiang Huatai professional cooperative were surveyed on the growth of cotton seedlings in 2016 in 2751 households in 12 provinces in the mainland and 2751 in the autonomous region of Xinjiang.

The survey results showed that in June, most of the cotton in China was in bud and flowering stage. The occurrence of pests and diseases was generally light. The meteorological conditions in the northwest inland cotton region and the the Yellow River River Basin cotton area were better, which was conducive to the growth and development of cotton.

Since the sowing of cotton, some cotton areas have been suffering from meteorological disasters such as rainstorm, hail, drought and dust.

According to the weighted average of cotton planting area of cotton farmers surveyed, the area of cotton planting in the whole country was 41 million 296 thousand mu, and the same caliber decreased by 10.1%.

By the end of June, the rate of cotton buds in the whole country was 83.85%, 10.3 percentage points faster than that of the same period last year, and the incidence of pests and diseases was generally lighter. Among them, the disease was lighter, accounting for 67.63%, an increase of 1 percentage points compared with the same period last year, and 50.51% of the less insect pests, 14.9 percentage points lower than the same period last year.

The incidence of disease in Xinjiang was relatively low this year. The surveyed households accounted for 76% of the disease, which was 6.73 percentage points higher than that of the same period last year. In June, as the temperature increased, the incidence of insect pests increased, and the survey showed that the number of pests was 44.7%, which was 37.4 percentage points higher than that of the same period last year.

In late June, due to the higher temperature in some parts of the southern part of Xinjiang and the widespread hail weather in the northern part of Xinjiang, the cotton growth was affected to a certain extent. The overall seedling condition was worse than that of the same period last year. The seedlings accounted for 23.20% of the total survey households, down 46.83 percentage points from the same period last year, and the poor seedlings accounted for 48.70%, an increase of 35.14 percentage points over the same period last year.

According to the principle of "time to unequal branches and branches to different times", the topping work has been started in late June and early July. Due to the influence of early weather on cotton growth, cotton growers need to invest more in management and fertilizer, and the cost of cotton planting will increase.

In June,

Cotton area generally entered the bud stage, a few entered the initial flowering stage, and the growth was better than that of the Yangtze River Basin. The precipitation in most cotton areas was much higher than that in the same period of the year. The suitable temperature and soil moisture were better. The drought in cotton fields in Hebei and other places was alleviated earlier, and the cotton growth and development period was earlier than that in the same period.

As of June 30th, the percentage of households surveyed was 77%, an increase of 2 percentage points over the same period.

The disease is lighter, but slightly heavier than last year, the surveyed households considered that the disease was heavier, accounting for 3.4%, an increase of 1 percentage points compared with the same period last year, and a small amount of root rot disease occurred. The occurrence of insect pests was similar to that of last year. It was considered that the occurrence of insect pests was heavier, accounting for 15%, mainly aphids and bug bugs.

The overall growth is obviously better than last year. The growth rate was 43.67%, up 20 percentage points from the same period last year. However, some areas in Hebei, Henan and Shandong were affected by drought.

The growth is slow, the buds are late, and the growth is normal; besides, parts of Shandong, Shanxi and Shaanxi are also endangered by hail.

Waterlogging and flood disasters, heavy rain caused the cotton bud to fall off, the leaves were yellow, affecting the late yield formation, and some of the flooding time was too long, and even the phenomenon of dead seedlings was found. The cotton growth was slow, the growth period was delayed, and the emergence time was later than the same period last year. As of the end of June, the rate of buds in the surveyed households was 67%, which was 10.26 percentage points lower than that of the same period last year. At present, there are few cotton plants in the bud and the flowers are blooming. At the same time, under the influence of rainy weather, the aphid bug is more serious, the snail damage is heavier, the insect pest is heavier, which accounts for 24.89%, an increase of 6 percentage points compared with that of the previous year. The incidence of serious diseases is relatively low, and the incidence of serious diseases is 14.21%. The heavy rainfall process in the Yangtze River Basin is frequent, and the precipitation process is heavy and the rainstorm is affected widely.

The overall growth of cotton was worse than that of last year. The growth rate was 63.76%, up 9 percentage points from the same period last year. The growth rate was only 12.48%, which was 18 percentage points lower than the same period last year.

In addition, wheat stubble cotton and late rape cotton were delayed by the weather, and are still at the slow seedling stage, with four to five true leaves.

After entering the July, the Yangtze River Basin was severely flooded, and Hubei, Hunan, Anhui and Jiangsu were successively affected. After that, the storm moved northward and the floods in Hebei were also serious.

Because the amount of cotton planted in the mainland is low, and most of the affected areas in Hubei are not in the cotton area, the impact is not great. However, the cotton in Anhui is greatly affected by the disaster. It is expected that the yield and quality will be affected in the later stage.

Due to the fact that the local cotton has not entered the boll opening period in Hebei area, only some of the buds are damaged, and some buds appear to fall off.