First, the unripe farmyard manure and cake fat should not be used directly. The unfamiliar farmyard manure and cake manure contain multiple eggs and pathogens, as well as large quantities of carbon dioxide gas and heat. The direct use will pollute the soil, accelerate the evaporation of soil moisture, burn the roots of the crop, and affect the seed germination. The correct method of use is to first fully compost the farmyard manure and cake fat, and use it after high temperature disinfection or chemical treatment.
Second, chlorine-containing fertilizers should not be used on saline and alkaline crops. Tobacco crops include tobacco, fruits, sugar beets, potatoes, and watermelons.
Third, nitrogen fertilizers should not be applied shallowly or before watering. After nitrogen fertilizer is applied to the soil, it is generally converted into ammonium nitrogen, easily lost to water or volatilized by the effect of light and heat, losing its fertility.
4. Ammonium nitrogen fertilizer should not be mixed with alkaline fertilizers such as grass ash.
Fifth, nitrogen fertilizer should not be applied to legumes. There are nitrogen-fixing rhizobia in the roots of leguminous crops. Excessive application of nitrogen fertilizer will not only cause waste, but also make the crops greedy and late and affect the yield.
Six, phosphate fertilizer should not be used in dispersal. Phosphorus in phosphate fertilizers is easily absorbed and fixed by the soil. If the fertilizer loses its effect, the phosphorus fertilizer and the compost should be mixed and piled up for a period of time before being applied to the vicinity of the crop roots.
7. Fertilizers with high phosphorus content should not be used for vegetables. The demand for phosphorus in vegetables is relatively small.
8. Potassium fertilizers should not be used during the later stages of crop growth. When there are symptoms of potassium deficiency, the growth of the crop is near the end of the period. At this time, the top dressing will not have much effect. Therefore, the potassium fertilizer should be applied to the crop during the seedling stage, or used as a base fertilizer.
Nine, rare earth fertilizers should not be applied directly to the soil. The use of rare earth fertilizers is relatively small. The correct method of application is to use rare earth fertilizers for seed dressing or for foliar spray applications.
10. It is not appropriate to disregard the fertilization of crop varieties and growth periods. Different crops and crops in different growth stages have different needs for the variety and quantity of fertilizers. Fertilization without crops and periods will only be counterproductive.
ORIENTMED has many branched. Band Aid is also our main products. Band Aid is a kind of wound healing pads that made of non woven, PE, fabric material. It is used for minor cuts, scrapes abrasions, and puncture wounds .It's gentle and comfortable, can be used in hospitals or for personal care. Our products have get the CE, ISO and FDA. 70% of our clients need get this kind of products registration. So we have an experience experience on products registration on our clients'Ministry of Health.
If you are intrested in our Menthol Product Series, welcome to send us your inquiry and requirments.
For health! Professional service, we would do better.Band Aid
Band Aid,Fabric Band Aid,Waterproof Band Aid,Blister Band Aids
Hebei Orient Imp. & Exp. Co. Ltd. , https://www.orientmedcare.com