Nitrogen is best in urea, but the content of biuret in urea can not exceed 0.5%(5.5inch plastic plant pots). Phosphate is commonly used for phosphate fertilizer. Potassium sulfate is commonly used for potassium fertilizer. Potassium dihydrogen phosphate is commonly used for phosphorus and potassium compound fertilizer. Potassium nitrate can be used for nitrogen and potassium compound fertilizer(8 inch plastic nursery pots). When using, be sure to buy regular manufacturers' products.(small black plastic nursery flower pots in bulk)
It is best to buy them at chemical reagent stores. Because of the high content of potassium nitrate in the poor quality potassium nitrate(5.9inch plastic plant pots), it is easy to produce phytotoxicity; the medium amount of elements is commonly used for magnesium sulfate. The time of application is preferably carried out after 15:00 to the evening. It should not be mixed at will. This is a problem that must be paid attention to in foliar fertilization(nursery bags suppliers). If it can exert the fertilizer effect and no phytotoxicity, it can be applied in a large area.
(small black plastic nursery flower pots in bulk)Spraying concentration should be suitable, urea is 0.2% to 2.0%(6.3inch plastic plant pots), the ratio of superphosphate to water is 1:10 times the leaching solution is 0.5% to 2.0%, potassium sulfate is 0.5% to 2.0%, and potassium dihydrogen phosphate is 0.1% to 0.3%. %, magnesium sulfate is 0.1% to 0.2%, zinc sulfate is 0.1% to 0.4%, borax is about 0.2%, ferrous sulfate is 0.2% to 1.0%(cell plug trays), manganese sulfate is 0.1% to 0.3%, and platinum acid hinge is 0.02. % to 0.10%, and copper sulfate is 0.1% to 0.5%.
Foliar fertilizers sold in other markets should be read carefully(6.5inch plastic plant pots), and small-area tests should be carried out when increasing the concentration. Trace elements should be sprayed in the early stage of crop growth. Nitrogen, phosphorus and potassium are generally applied in the middle and late stages and in the event of severe weather(greenhouse pots). The number of uses should be determined according to the growth of the crop field, from 1 time to 3 times. 4 times, once every 7 days.
(small black plastic nursery flower pots in bulk)Both the front and the back of the blade should be sprayed because the stomata of the grape are located on the back of the leaf(7.48inch plastic plant pots). Each time the amount of liquid is used, the amount of dripping is just present on the leaf surface. Foliar fertilizer can usually be mixed with other fertilizers or pesticides to prevent pests and diseases, and to achieve the purpose of fertilization(15 gallon nursery pots). However, foliar fertilizer should be strictly used in combination with other fertilizers or pesticides.
If it is too much, it will affect the absorption of nitrogen and iron(7.88inch plastic plant pots). When there is too much nitrogen, it is usually sprayed evenly. At this time, the temperature is low and the humidity is high, which is good for the absorption of the leaves. Generally used in micro-fertilizers are zinc sulfate, borax, ferrous sulfate, manganese sulfate, molybdate hinge, copper sulfate and the like. If it is not introduced(1 gallon nursery pots), it can be mixed in a small amount, and a few trees can be sprayed for observation.(small black plastic nursery flower pots in bulk)
This is not right, but it should be watered according to the actual situation(9.06inch plastic plant pots). It is a tropical plant and likes a warm and humid environment. In addition, it is easy to mislead the flower friends to water more. Now, in fact, they can't water too much, otherwise it is easy to rotten. Also, keep the water in the cup. It is similar to the effect of grass ash in terms of fertilizer efficiency(7 gallon nursery pots). It is to make plants more robust and robust (can prevent the length of the body) and promote flowering results.