Principles of application of phosphate fertilizer

The growth of national orchid depends on its growth period, supplying different amounts of phosphate fertilizer can help the new buds of national orchid grow roots earlier, promote its root group to flourish, break away from the dependence on mother plant for nutrient growth, live on its own to produce organic matter (leaves, buds, etc.), improve the vegetative growth of national orchid, cultivate varieties and produce national orchid with good yield.

According to its growth period and growth situation, the principles of applying phosphate fertilizer are as follows:

(1) when ramet:

1% of fully fermented, pest-free organic fertilizer can be placed in the medium, or Lankangduo 16 Mel 16 long-acting slow-acting chemical fertilizer can be placed two weeks after planting.

(2) budding period-vegetative growth period:

The phosphate fertilizer supplied by flux and the application of wood wax, ammonium acid, Xidolan or Langenwang can help the new buds to form new roots earlier, exercise the absorption capacity of water and nutrients, and avoid excessive growth due to excessive nitrogen supply. increase the ability of photosynthesis, promote growth rate and increase yield.

(3) growth period-primary stage: from the middle stage of vegetative growth to the early stage of corm hypertrophy

One month before flowering, depending on the growth status of orchid plants and the effects of light, temperature and water in the cultivation environment, the application of phosphate fertilizer should be reduced, the hours of light should be supplemented, and the temperature difference between day and night should be reduced so as to prevent lateral buds from vegetative growth to reproductive growth. That is to say, leaf buds were supposed to grow, but due to the excessive light and temperature and the excessive amount of phosphorus in the plant, the growth of the orchid was limited, which led to the dormancy or semi-dormancy of the orchid, and the water-soluble fertilizer of Yifeidan with N, P, K and 15-3O-15 content could be applied.

Corm hypertrophy stage-corm maturity stage, when meristem cells divide into chemical fertilizer stage, the supply of phosphate fertilizer can help Guolan mature earlier, which is beneficial to corm hypertrophy and improve the quality. Cell fractionation chemical fertilizer can be used in the large stage (phosphoglycoenzyme) harvest is 1000 times better or N, P, Kjue 15, high phosphorus Xizhuang more water-soluble organic fertilizer, once a week, take turns, continuous application for three to four times, in order to induce lateral bud germination, improve bud rate, and provide sufficient nutrients, promote corm hypertrophy, new buds grow vigorously, improve yield and quality.