What is the annual harvest time of rice in Sixia Town, dushan county, Guizhou?

Sixia Town, dushan county, Guizhou Province harvests rice in mid-August every year.

Climatic conditions in Sixia Town, dushan county, Guizhou Province

Si Xia Town has a typical subtropical humid monsoon climate with four distinct seasons, no severe cold in winter and no intense heat in summer, a pleasant climate and a long frost-free period, with an average temperature of 65,438 06.5℃, an annual rainfall of 65,438 0380 mm and a frost-free period of 270 days. The town is located in the slope zone where the Yunnan-Guizhou Plateau transits to the hills of Guangxi, with the lowest elevation of 750m and the highest elevation of1210m. It has the advantages of developing three-dimensional agriculture, "cool" fruits and vegetables in summer and tourism services.

Rice likes high temperature, high humidity and short sunshine, and has low requirements for soil, but paddy soil is the best. The lowest temperature of seedling germination is 10 ~ 12℃, and the optimum temperature is 28 ~ 32℃. The average daily temperature at tillering stage is above 20℃, and the optimum temperature for ear differentiation is around 30℃. Low temperature prolonged the differentiation of branches and glumes. The optimum heading temperature is 25 ~ 35℃. The optimum flowering temperature is about 30℃, lower than 20℃ or higher than 40℃, and pollination is seriously affected.

The relative humidity is 50 ~ 90%. The key period of fruiting is from panicle differentiation to full filling stage; The population with balanced nutritional status and high photosynthetic efficiency is of great significance to improve seed setting rate and grain weight. A lot of water and mineral nutrients are needed at heading and fruiting stage; At the same time, it is necessary to enhance the root activity and prolong the functional period of stems and leaves. It takes about 500 ~ 800 kg of water to form 1 kg of rice.