base fertilizer: apply 15-2kg of decomposed farmyard manure and 2-3kg of compound fertilizer per mu. Raising seedling fertilizer: apply 5kg of high nitrogen water-soluble fertilizer per mu. Tillering fertilizer: 5kg high-nitrogen water-soluble fertilizer is applied per mu. Stem tapping fertilizer: 5kg of high nitrogen water-soluble fertilizer is applied per mu. Strong tail fertilizer: apply 5-1kg high calcium and potassium water-soluble fertilizer per mu.

1. What fertilizer should be applied to sugarcane to grow sweet and thick

1. Base fertilizer

1,5-2, kg of decomposed farmyard manure and 2-3kg of compound fertilizer should be applied per mu of land, which usually needs to be ploughed and then applied.

2. Raising seedling fertilizer

Sugarcane has a high demand for nitrogen fertilizer in seedling stage. Sufficient nitrogen is beneficial to the healthy growth of sugarcane seedlings and roots, and it is also helpful to leaves. Generally, high-nitrogen water-soluble fertilizer can be selected, and the dosage per mu is 5kg.

3. Tillering fertilizer

Sugarcane needs topdressing with high nitrogen and potassium fertilizer, such as water-soluble fertilizer series, and the dosage per mu is 5kg, which is beneficial to promote sugarcane tillering and improve sugarcane growth.

4, tapping the stem fertilizer

The rationality of nutrients in the growing period of sugarcane stems is very important to the yield. At this time, it is necessary to topdressing nitrogen fertilizer, and you can choose high-nitrogen water-soluble fertilizer, the dosage of which is 5kg per mu, and it can also play a role in lodging resistance.

5, strong tail fertilizer

High calcium and potassium water-soluble fertilizer can be applied to sugarcane at the strong tail stage, which is beneficial to increase the sweetness of sugarcane and accelerate maturity. Generally, fertilization can be carried out about two months ago, and the dosage per mu is 5-1kg.

2. Matters needing attention in sugarcane fertilization

A small amount of fertilizer needs to be applied many times. In the process of sugarcane topdressing, irrigation and drip irrigation can be adopted to promote the rapid and efficient absorption of nutrients by bringing water fertilizer.

3. Growth habit of sugarcane

1. Sugarcane is a kind of crop that likes temperature and light. The annual accumulated temperature needs to be 55℃-85℃, the frost-free period is more than 33 days, the annual air humidity is 6%, the annual precipitation needs to be 8-12mm, and the sunshine hours need to be more than 195 hours.

2. According to the growth and yield formation of sugarcane, and the relationship between sugar content and climate, it is proposed that the daily average temperature should be ≥2℃ and whether sugarcane overwinters should be restricted.

3. There is also the annual extremely low temperature (Tm) which is the main limiting factor of perennial growth. As the index of sugarcane climate zoning, it is mainly divided into the following four sugarcane planting climate zones.

4. The accumulated temperature is above 5℃, and Tm ≥-2℃ is a suitable climate zone for planting; The accumulated temperature is 4-5℃, and -5℃ ≤Tm ≤-2℃ is the suitable climate zone; The accumulated temperature is 3-5℃, and -5℃ ≤Tm ≤-2℃ is the sub-optimal climate zone; The accumulated temperature is ≥3-4℃, and -8℃ ≤Tm ≤-2℃ is the climate zone for planting.

5. The four sugarcane planting climate zones are mainly concentrated in the middle subtropical zone, the south subtropical zone and the tropical monsoon climate zone, among which the more suitable planting climate zones are basically located in the south of 24 north latitude.