What are the principles of phosphate fertilizer application? Rational fertilization is more efficient

As Chinese orchids (Cymbidium) grow, supplying phosphate fertilizer in amounts that vary with their growth stage can help the newly emerged young shoots grow roots earlier, promoting vigorous root development, enabling them to break away earlier from dependence on the mother plant for nutrients and live independently by producing organic matter (leaves, shoots, etc.), and keeping the vegetative growth of Chinese orchids sound, so as to cultivate Chinese orchids with good varieties and yields. Depending on the growth stage and growth conditions, the principles for applying phosphate fertilizer are: (1) At division: Place 1-2% fully fermented, disease- and pest-free organic fertilizer into the medium, or two weeks after planting, place Lankangduo 16-16-16 long-acting slow-release chemical fertilizer. (2) Sprouting stage - vegetative growth stage: Supplying a sufficient amount of phosphate fertilizer and applying Mula liquid, amino acids, Xiduolan or Langenwang can help new shoots produce new roots earlier, carry out water and nutrient absorption, and can avoid excessive vegetative growth caused by too much nitrogen supply, increase photosynthetic capacity, promote growth rate, and raise yield. (3) Growth stage - early stage: mid vegetative growth to early bulb enlargement One month before the flowering stage, depending on the growth condition of the Chinese orchid plants andCultivationthe influence of ambient light, temperature and moisture, appropriately reduce phosphate fertilizer application, and supplement light hours and narrow the day-night temperature difference, to prevent lateral buds from changing from vegetative growth to reproductive growth. That is, leaf buds were originally to be produced, but because of light, temperature and excessive phosphorus in the Chinese orchid plant, the growth of the Chinese orchid is restricted, causing the Chinese orchid to enter dormancy or semi-dormancy and bloom early; at this time, the water-soluble fertilizer Yifeidan with N, P, K content of 15-30-15 can be applied. Bulb enlargement stage - bulb maturation stage, which is exactly the period of meristematic cell differentiation and enlargement; supplying a sufficient amount of phosphate fertilizer can help the Chinese orchid mature earlier, favor bulb enlargement, and improve quality. During the cell differentiation and enlargement stage, Shoushanghao at 1000 times, which is needed by the pseudobulb (phosphosugar enzymes), or the water-soluble organic fertilizer Xizhuangduo with N, P, K 15-30-15 and high phosphorus can be used, once a week, used in rotation, applied three to four times continuously, to induce lateral bud germination, increase the sprouting rate, and supply sufficient nutrients, promote bulb enlargement, vigorous growth of new shoots, and improve yield and quality.