(b) onions cultivation techniques are highly adaptable, short-lived and not susceptible to infecting pests and insects, and simple cultivation, although it is only 1,000 kg of acre production, is less economically efficient than onions cultivation techniques, which are carefully organized for you, but not drought-resistant. Onions cultivation techniques require onion cultivation techniques. The environment requires a cooler climate with a high degree of coolness and heat resistance, a low temperature of 13 to 20 degrees celsius for sprouts, a high temperature of 18 to 23 degrees celsius for leaf growth, 14 to 18 degrees celsius for roots growth, slow growth at above 28 degrees celsius, less water than onions, 70 to 80 per cent symmetric soil wetness, 60 to 70 per cent symmetry for air, a low temperature temperature of 60 to 70 per cent for light, a simple ageing organization in strong light, increased fibres at 14 to 18 degrees celsius, slow growth at 28 degrees celsius and above the temperature is facilitated by shallowness, less water than onshore and on-side land, less than drought, less sy soil moisture than 70 to 70 to 80 per cent, moderate to 60 to 70 to 70 to 70 per in summer, 60-80 days after the general planting of sunnets, 30 days after the planting, the harvest can continue. The species of flowers, which are now better performed with four seasons of small onions and little onions built in fuku, are finely and finely applied to each acre of ground, whether seeded or replanted, with finely fertilized organic weights of 3,000 kg or more than 1,000 kg of chicken dung, which swells up to one-and-a-half metres wide, 8-10 metres long, and summer and low-lying onions, which are 15-20 cm high above the ground, with drains around them。
(a) the planting of seedlings is carried or sowed in a manner that is 10 cm apart and is 1. 5 - 2 cm thick; (a) 2-4 kilograms per acre to prevent the hazards of underground pests, prior to planting with thiphos phosphorus to sift the fine soil over the bed, as well as to make a bait from trichlorfon to thiram to thiram to thiram in bed after seeding, to water the bottom of the floor 40 - 50 days after planting, to water per 8 - 10 cm range and 8 - 10 cm range, and to the extent feasible, to sow water at 4 - 6 cm at a reasonable time, and then to sow it directly without removal。
One, strengthening water fertilizer management. Per acre urea 10kg plus compound 20kg fat: the principles of fast-activated nitrogen fertilizer ii, pest control 1, pest control and pest control are prohibited 30 days before delivery of potassium sulphate compound fertilizer per acre during expansion: agriculture: rational application of fertilizers, enhanced management of chinese tillage, clean fields, reduction of the physical control of pests: full promotion of the chemical control of the use of vermin lamps: scientific rational use of pesticides, reduction of pesticide residues in onions is the core of the national ban on on the use of pesticides on onions without public hazards, rigorous control of safe, scientifically sound use of chemical control for the production of safe and high-quality onions (1) scabies, aphids: 3000 times the liquid spray can be sprayed with vermin; 1. 8 per cent the fungus 3000 times the liquid spray; 10 per cent the vermin 3000 times the liquid spray (2) the leaf fly: use 1. 8 per cent the fungus 3000 times the liquid spray; (3) the control of venomous onion pests (3): 80 per cent can be sprayed with 500 times the fumes; 80 per cent of the tresil flu: 1,000 times the tresil flu. In the early stages of the disease, 50 per cent of the conromolial 1500 liquid spray can be used; the aromaamine can be used in a 1,000-fold displacement。
(5) purple spots: 72 per cent of onion-planting techniques and pest-proof techniques for the treatment of cytoxin 1,000 times in agriculture - 4 -。
