Early maturing varieties are generally available from late September to early October. After picking, fertilizer should be applied sooner rather than later. Whether it is pre-harvest or post-harvest application, the total amount of fertilizer should generally account for about 30% to 35% of the annual fertilization amount. The fruit harvesting fertilizer is best based on organic fertilizers, and the growth of citrus trees is considered, and some quick-effect fertilizers, such as urea, ammonium sulfate, and ammonium bicarbonate in fertilizers, or fully decomposed human and animal wastes and cakes, are suitable. Incompletely decomposed and difficult-to-decompose organic fertilizers, due to their slow fertilizer effect, should not be applied before fruit harvesting, and can be left as winter fertilizers after fruit picking. colostomy pouch ostomy pouch stoma pouch urostomy pouch Wenzhou Celecare Medical Instruments Co.,Ltd , https://www.wzcelecare.com
Before applying for harvesting fruit, generally every mandarin tree is cooked with 50 kilograms of human and animal manure water, 0.3 to 0.5 kilograms of urea, 0.2 to 0.3 kilograms of calcium magnesium phosphate, and 0.25 kilograms of potassium chloride. For a long time. Or about three kilograms of ternary compound fertilizer per adult tree, using arc or circular deep ditch. After the fruit is harvested, combined with winter fertilizer, according to the current year's yield, a reasonable application amount is determined. In general, the yield tree of 50 kg per tree can be used to apply pig manure 20 to 25 kg and human excrement 10 to 15 kg. Fertilizer 1 kg. Fertilizers must be applied deeply. The depth of fertilization should be 20-30 cm. It is advisable to apply sufficient water at the same time as fertilizing. It not only dilutes the chemical fertilizer concentration, prevents the burning of roots, but also facilitates the rapid growth of the root system. At the same time, 0.5% to 1% urea, 0.3% to 0.5% potassium dihydrogen phosphate and 0.3% to 0.5% zinc sulfate can be used as extra-root fertilizers to increase various nutrients required for the tree.