Variety selection 2000-3, Champion and other strong, fast-growing hybrid varieties. Seedlings are sown mainly from 2 to 4 months. Use 50% carbendazim WP 300 times soaking for 12 hours, then soak in warm water of 30～35°C for 2~3 days, remove the seeds, cover with wet towel to germinate, wash seeds twice a day with warm water, after 10% seeds are whitened sowing. Prepare a nutritious soil, make a 10 cm square nutrient soil, single seeds on demand, covering 2 cm thick fine soil. Arch daytime temperature control in the 25 ~ 30 °C, night temperature 15 ~ 18 °C, the temperature exceeds 32 °C timely ventilation and hardening seedlings. Seedlings grew more than 3 stems transplanted on the ground. Transplanting planted in the east and west direction scaffolding, planting in the north-south direction. (1) Digging planting ditch. In the deep-leveling ground, the north-south line is drawn straight at a line spacing of 120 centimeters, and the planting ditch is dug along a straight line. The groove width is 40 centimeters and the ditch depth is 40 to 50 centimeters. (2) fill the ditch with fertilizer. 5000 kg of soil miscellaneous fertilizer and 50 kg of ternary compound fertilizer mixed into the trenches per acre. (3) Fine colonization. The nutritious clods were planted in the ditch at a spacing of 25 cm. The bulbs of the shoots were 13 cm below the ground level, and then watered to make them natural. Bronchitis Vaccine,Chicken Ib Vaccine,Poultry Ib Vaccine,Infectious Bronchitis Vaccine Shangqiu Meilan Biological Engineering Co.,Ltd , https://www.melanvaccine.com
Asparagus greenhouse anti-season cultivation techniques