I. Seedbed tube water and dry seedling period Under normal circumstances, there is no need to replenish water, adhere to dry and dry tube, in order to improve the drought tolerance of the seedlings, and at the same time pay attention to pouring three times of water, that is, pouring the bottom of the water before the sowing, uncovering the film When the water is poured out, the water is peeled off. It is necessary to properly control the water in the 1~2 leaf stage to promote the roots of the seed, and pay attention to the water-preserving and dead seedlings in the 2~3 leaf stage, strictly control the water after the 3~4 leaf stage, and cultivate the physiological strong and vigorous in the dry breeding. In order to prevent excessive rain, it is impossible to implement dry and dry irrigation, and it is possible to strictly control water and dry cultivation in small arch sheds or greenhouses. The seedlings for throwing japonica rice use the wet irrigation method of sunny full ditch water, cloudy and semi-ditch water, and dry water in rainy days. The water layer does not exceed the surface of the disk, preventing the roots from lifting and forming string roots. Wet the nursery and fall to the 1st and 1st heart period, keep the water in the ditch, keep the seesaw moist, establish the water layer in the 3rd leaf stage, and implement shallow water irrigation to promote tiller growth.
Second, the seedbed fertilization after strict fertilization of the dry nursery seedling bed is sufficient, the nutrient is complete, the quick-acting fertilizer content is high, generally do not need to break the milk fertilizer, just need to look at the appropriate amount of top dressing after the 3 leaf stage. Generally, 4 to 5 kg of urea per acre or 750 kg of manure water are poured, and the body fat is applied 1 to 2 days before the drawing, and 7 to 8 kg of urea per acre is applied. The top dressing should be carried out in the evening, using a fertilization method that is applied first and then sprayed with water. The seedlings for throwing indica rice should be properly topdressed, and the milk fertilizer should be applied in 1 leaf 1 heart period, 3~4 kg of urea per acre, and 2~3 days before transplanting, and 5~6 kg of urea per acre. In the conventional wet nursery field, it is necessary to insist on early application of milk fertilizer, and to see the application of fertilizer by Miao Qiao, and to apply the principle of fertilization. Weaning fertilizer in the 1 leaf 1 heart period, 5 to 6 kg of urea per acre; relay fertilizer in the 3 to 4 leaf stage, 3 to 5 kg of urea per acre; body fat; 2 to 3 days before the plucking, per acre Apply urea 8 to 10 kg, transplanted with fertilizer.
Third, the prevention and control of pests and diseases in the seedling stage should be based on the main battle of the control of pests and diseases such as the locusts. Focus on grasping the fly ash to the Putian to the first generation of the larvae of the larvae of the larvae to move into the peak period to carry out the whole process of drug control, which can be controlled by the potency, such as chlorpyrifos and ruthen, and with imidacloprid, chlorpyrifos and isoprocarb. Mixed with high-potency pesticides such as dichlorvos to prolong control time and improve control effects. In the paddy field, the interval between drugs and the number of prevention and treatment should be determined according to the amount of poisonous insects and the resistance of the varieties. For Putian with high toxic fly worms, long adult larvae, and susceptible traits, it is necessary to shorten the interval between medications, implement full-course drug control, and improve the control effect of Laodelphax striatellus; The disease-resistant field can prolong the interval between medications and reduce the number of medications. In combination with the early control of the gray locust in Putian, the virus-reducing agent such as the susceptible variety of the re-emergence area, plus the bacterium and the bacterium, increased the control effect of the stripe disease. In the aphid recurrence areas along the Yangtze River, Sunan and Huaibei, while controlling the leaf blight of Laodelphax striatellus, attention should be paid to the treatment of diseases such as aphids, rice locusts and other pests.
The main products of Shaanxi Haibo Biotechnology Co., Ltd. are Minoxidil, Vitamin b5 for hair, ceramide for hair, ghk-cu for hair loss, etc., specializing in the research, production and sales of raw materials for hair care in the pharmaceutical industry. Shaanxi Haibo Biotechnology Co., Ltd. has R&D, production, quality inspection, sales and other departments.
Hair Care Material,Jojoba Oil,Krikland Minoxidil,Anti Hair Loss
SHAANXI HAIBO BIOTECHNOLOGY CO., LTD , https://www.rozenbio.com