1, the number of planting: fine-stemmed varieties, the amount of seeding per acre is 67,500-75,000 pairs of sprouts, medium-stemmed varieties, the amount of seeding per acre is 60,000-67,500 pairs of sprouts, and large-stemmed varieties, the amount of seeding per acre is 37,500-52,500 pairs of sprouts, and the number of sugarcane plants planted in normal conditions is 2,000-2,500 plants per acre.2, planting time: Spring sugarcane can be planted in January-April, summer sugarcane can be planted in May-June, fall sugarcane can be planted from the beginning of autumn to the frost, and winter sugarcane can be planted from November to January of the following year.
I. How much sugarcane is planted in one acre
1. Planting quantity
(1) Fine-stemmed varieties, the number of effective stems can be retained at 90,000-120,000 per mu, and the amount of seed under the seed is 67,500-75,000 double sprouts.
(2) Medium-stemmed varieties, can retain the effective number of stems 75-105,000 / mu, the amount of seed for 6-675,000 double sprouts.
(3) Large-stemmed varieties, the number of effective stems can be retained 60,000 / mu, the amount of seed is 37,500 - 52,500 double sprouts.
(4) Under normal circumstances, 2000-2500 cane plants can be planted per mu.
2. Planting time
(1) Spring sugarcane: it can be planted from January to April.
(2) Summer sugarcane: can be planted in May-June.
(3) Autumn sugarcane: it can be planted from autumn to frost, and harvested in November-December of the following year.
(4) Winter sugarcane: can be planted from November to January of the following year.
2. Sugarcane planting methods
1. Selection of land
(1) Choose a plot of land with flat terrain, fertile soil, deep soil and good permeability as the planting site.
(2) The depth of the cultivation layer of the planting land is required to reach 40-45 centimeters, and at the same time, it is necessary to have strong water retention and fertilizer retention capacity.
2, ditching
(1) digging planting ditches, if manual planting and harvesting, can keep the row spacing at 0.8-1 meters, if mechanized planting and harvesting, can keep the row spacing at 1.25-1.3 meters.
(2) The appropriate depth of the planting furrow is about 25-30 centimeters, and the width of the bottom of the furrow is about 25 centimeters.
3, under the seed
Select upright, thick-stemmed, not yet flowering cane plants for seed, before sowing the seeds should be sunshine seed soaking, disinfection and germination.
4, fertilization
(1) At the time of sowing, 5-10 kg of urea, 30 kg of potassium chloride, 100 kg of calcium and magnesium phosphate fertilizer, and 1,000 kg of rotted organic fertilizer should be applied to each mu of land.
(2) Apply 6-7 kilograms of pure nitrogen per mu at the tillering stage and 9-13 kilograms of pure nitrogen per mu at the elongation stage.
5, soil cultivation
(1) When the number of leaves of the seedlings reaches 6-7, carry out a soil cultivation work, soil cultivation height of about 3 cm.
(2) Tillering season for the second cultivation work, cultivation height of 6 cm or so.
(3) The third cultivation at the beginning of the elongation period, the height of cultivation is about 20-30 centimeters.
6, management
(1) sprouting: control the moisture content in the soil at about 25%, keep the temperature at 26-32 ℃ when sprouting, and keep the temperature at 20-27 ℃ when the cane root sprouts.
(2) Seedling stage: Control the water content in the soil at 20-30% and make sure the temperature is not lower than 15℃.
(3) Tillering stage: Keep the water content in the soil at about 70% of the field holding capacity and make sure that the minimum temperature is not lower than 20℃.
(4) Elongation period: keep the water content in the soil at about 80% of the field holding capacity, and at the same time control the temperature at 30℃.