1. Sugarcane is sown in spring and autumn. The spring sowing time is1from the end of October to the middle of March, and the harvesting time is from May to the middle of July. It is suitable for autumn sowing from the end of August to the end of September, and harvesting begins in mid-February. Sugarcane in China is mainly planted between 33 north latitude and 30 south latitude, and the planting areas are relatively concentrated. Sugarcane is a crop that likes temperature and sunshine. It requires frost-free period of more than 330d, annual accumulated temperature of 5500℃-8500℃, annual air humidity of 60%, annual precipitation of 800- 1200mm and sunshine hours of 65438+.

2. Sugarcane is suitable for planting in places with fertile soil, abundant sunshine and large temperature difference between winter and summer, such as Taiwan Province Province, Fujian, Guangdong, Hainan, Guangxi, Sichuan and Yunnan. Sugarcane is rich in water and sugar, and also contains a variety of vitamins, protein, fat, organic acids, iron, calcium and other substances that are very beneficial to human metabolism. Mainly used for sugar production. The epidermis is generally green and purple, but it is also reddish brown, but it is rare.

Second, the cultivation techniques of sugarcane

1, soaking seeds to accelerate germination

Soaking seeds and accelerating germination is the key factor of sugarcane planting technology. You can use two methods, lime water immersion and clear water immersion. Seedlings can be soaked in dilute lime water 12-24 hours or so, which can kill the remaining germs. When soaking in clear water, it is generally appropriate to keep it at room temperature for 1-2 days.

2. Preparation of matrix

The substrate for planting sugarcane should ensure that the soil layer is deep, the drainage is smooth, fertile and loose, and it can meet the growth requirements of the root system. Add a small amount of base fertilizer, mainly potash fertilizer and phosphate fertilizer, and then loosen the soil after watering to keep the soil soft and flat.

3. Planting and planting

Put the prepared seedlings into the pit in the soil, and compact the surrounding with soil, and keep the row spacing at 1- 1.2m, which is convenient for rooting. After thorough watering, weeds in the soil should be removed in time after emergence, and an appropriate amount of urea solution should be applied, followed by watering once.

4. Environmental management

The temperature controlled by plants at different development stages is different. The temperature should be controlled at about 20℃-25℃ when the seedlings germinate, which can make the plants grow rapidly, and if it exceeds 30℃, the growth will be slow. The mature temperature should be above 20℃, and the optimum temperature in the later period is about 65438 03℃, which forms a reasonable temperature difference and is beneficial to the formation of sugar.

5. Weeding treatment

Weeding during growth should be combined with liquid medicine to reduce nutrient consumption. Simazine and atrazine are mainly used as herbicides. They are sprayed with water during emergence or when they grow well, usually only once.