China Cotton Association Issued A Meteorological Report For Cotton Production In September.

Project commitment: National Meteorological Center Agrometeorological Center

Respondents: 13 cotton producing provinces (districts), 201 cotton producing counties and 62 meteorological stations.

Survey time: September 2010

In September 2010, most of the cotton in the national cotton region was in the period of cracking and bolting. The average temperature of cotton growing area in China is 22.2 degrees, which is 0.3 degrees higher than that of the same period last year. The average precipitation is 93.8 millimeters, which is more than 46.1 millimeters over the same period last year. The average sunshine hours are 160 hours, which is 13 hours less than that of the same period last year. During the month, except for the most suitable conditions of light and heat in the northwest inland cotton area, most of the cotton growing areas in the the Yellow River River Basin and the Yangtze River Valley had more rain and less weather. yield And quality has a certain effect.

1. Northwest Inland cotton The condition of light and heat in most parts of the district is beneficial to cotton cracking and bolting.

During the month, the average temperature in the northwest inland cotton area was 19.4 degrees, 0.3 degrees lower than that in the same period last year, but 0.4 degrees higher than that in the same period. The average sunshine duration was 229 hours, 31 hours and 35 hours less than that of the previous year and the same period of the year. The average precipitation was 19.1 millimeters, slightly more than that of the previous year and the same period of the same year. Most of the cotton area in the month has better heat conditions and suitable soil moisture, which is good for cotton cracking and bolting. However, from mid late to late June, the continuous rainy weather in the western cotton region of Southern Xinjiang resulted in a further delay in some cotton bolting and boll opening periods, and the growth of cotton bolls and mildewy cotton plants increased. Among them, Wushi, kpin County, Ying Ji Shaxian County, Qira County, Yutian County and Shache county appeared rainstorms and floods, and nearly 900 hectares of cotton were affected.

2. Most of the cotton growing areas in the the Yellow River River Basin are rainy and sparse.

The monthly mean temperature in the cotton growing area of the Yellow River basin is 22 degrees, 0.6 degrees higher than that of the previous year and the same year. The monthly precipitation is 112.8 millimeters, which is 57.7 mm and 47.7 mm respectively higher than that of the previous year and the same year. The average sunshine hours are 128 hours, 70 hours less than that of the same period. In September, most of the rainy days in cotton growing area were 11~19 days, the average daily sunshine hours were only 3~5 hours, and the illumination was obviously insufficient, which was not conducive to cracking cotton bolls and bolls. Some cotton fields in Hebei and Henan appeared mildew, shedding and stiff valves, and the quality of cotton decreased.

3. Most of the cotton growing areas in the Yangtze River Basin are continuous rain, light, low temperature and heavy rainfall. Cotton yield And quality has some influence.

The monthly mean temperature of the Yangtze River valley cotton area is 24.8 degrees, slightly higher than that of the same period last year. The average sunshine hours are 133 hours, 38 hours less than that of the same period. The average precipitation is 135.6 millimeters, which is 63.7 mm and 47.5 mm respectively over the previous year and the same period of the year. In September, most of the rainy days in cotton growing area reached 15~23 days. In the first ten days of heavy rainfall, some farmland water and soil continued to be wet. In the last ten days, there was a continuous lack of illumination and strong cooling weather, which was not conducive to the weight gain of peach and cotton bolls in autumn peach.

4. In October, the temperature in most parts of the cotton area was high, and the precipitation was too few.

It is estimated that in October, the temperature of most parts of the cotton in China is higher than that in the same period of the year, which is conducive to the later growth of cotton fiber and the increase of cotton yield. Besides the precipitation in most parts of North China and Huang Huai, the rest of the cotton area has less precipitation, which is good for cotton cracking, bolting and picking and drying.

In October, cotton will be harvested and harvested in succession. All localities should seize the fine weather and pick up the mature cotton in a timely manner. Late maturing cotton fields should be strengthened late management, keep the cotton fields ventilated and translucent, timely control, promote the cotton bolls to normal maturity and boll opening. At the same time, all cotton areas should pay attention to the quality of picking, separate boll cotton, moth eaten cotton and stiff cotton, and timely remove the rotten cotton bolls, so as to improve the cotton grade.