Look at the fertility of the soil to apply fertilizer to overwintering crops in accordance with local conditions. Generally, the plots with high fertility and sufficient fertility can be applied with little or no fertilization. For plots with low fertility, low base fertilizer, or plots without base fertilizer, additional fertilization is required. Phosphorus and Potassium Fertilizers; Organic fertilizers are applied to plots of mono-chemical fertilizers that are used year-round. Do not blindly abuse, or easily lead to spring crops grow out of discipline, late lodging, greed, late maturity and lead to production and other adverse consequences. In addition, the application of a small amount of sand fertilizer to sandy soil, to prevent loss of fertilizer leaching.
Looking at the growth trend of seedlings depends on the growth of the seedlings and fertilizer requirements of overwintering crops. In general, dark-green long-green seedlings should not be applied to wax fertilizer. Green-green strong seedlings should be applied with little or no wax, and leafy yellow-green or thin-leaved red seedlings should be re-fertilized.
Look at the type of crop to apply different types of wax fertilizer to local conditions. The application of rapeseed wax fertilizer: The manure and phosphorus fertilizers should be mixed and rotted. Each 1500 kg of acre should be applied between the rows of rapeseed, combined with earthworms, and applied from late December to early January. Early maturing rape varieties should be applied earlier than late mature rape varieties due to early spring development. Application of wheat wax fertilizer: should be applied in the middle and late December is appropriate, and strong seedlings should be applied more soil miscellaneous fertilizer, and weak seedlings and late-maturing wheat should be mixed in soil miscellaneous fertilizer appropriate phosphorus fertilizer. In general, about 2,500 kg of fertilizer is applied or applied per acre. The application of green fat wax fertilizer: 150-250 kg of ash or a layer of thin pigs, cattle pen manure is applied per acre. The application of castor wax fertilizer: the amount of fertilizer should account for about 50% of the annual fertilization amount, about 4000 kg of soil-fertilizer per acre or about 2000 kg of pig, cowshed manure.
Pay attention to the choice of clear weather to improve the effect of applying wax fertilizer on overwintering crops, generally should pay attention to select the "snow after frost" fine weather. Usually the temperature is lower, then the application of delayed manure, compost, pond mud, ash or manure urine. When the temperature is high, grab the easily decomposable urea, ammonium chloride, ammonium bicarbonate and other fertilizers. Under low temperature conditions, ammonium bicarbonate evaporates less and can be quickly absorbed and utilized by overwintering crops when applied to soil. At the same time, the application of ammonium bicarbonate is more economical than urea. Topdressing 25-30 kg of ammonium bicarbonate per acre for wheat and rape, but pay attention to the methods when topdressing ammonium bicarbonate. Be careful not to burn the leaves.
Pay attention to the organic fertilizer and chemical fertilizer with a reasonable application of wax fertilizer but also according to different crops and seedlings attention to do a good job with the selection of fertilizer types. Such as decomposing pig dung, human excreta, fermented pond mud, river mud, old brick soil, fire and earth ash, cake fat, etc. are all high-quality organic fertilizers. For thin and thin seedlings, human feces and urine plus nitrogen fertilizers are mainly used. , To promote seedling thick; strong seedlings should be pond mud, soil miscellaneous fertilizer based. If the application of cake fat, 40 ~ 50 kg per acre is appropriate. Organic fertilizers used as wax fertilizers should be concentrated in the roots to prevent excessive concentrations of fertilizers around the roots of the crops during the drought, resulting in reverse osmosis and physiological water loss, resulting in overwintering crops. If a drought occurs after the application of wax fertilizer, it should be combined with water drought, water to adjust fertilizer, improve fertilizer utilization.
There are 6 commonly used injection methods we used : transdermal, subcutaneous, muscle, bottom of muscle, vein, artery, intrathecal . Compatible with these injection methods and amounts, you will find an assortment of different disposable syringes of varying sizes. The syringes with Luer-Lock connectors are especially well-suited for infusions and other procedures, where a firm grip between Syringe and needle is necessary.
Safety Auto Destruct Syringe can avoid unnecessary reuse.
Like Insulin syringe , Tubercle bacillus syringe is special .
Syringe
Medical Disposable Syringe,Single Use Syringe,Infusion Set With Regulator,Auto Destruct Syringe
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