Fertilization technology of cut flower anthurium

Anthurium is very sensitive to salt. Too high a concentration of the solution will cause the flower to shrink, the yield to decrease, and the stem to be short. Water sources with poor water quality can be used after osmotic filtration and desalination. Regular use of clean irrigation water to rinse the cultivation bed can reduce the accumulation of salt in the matrix.

1. Fertilization principle

(1) 2 to 4 liters of fertilization per square meter per day. (2) The seedlings should be properly added with nitrogen fertilizer to reduce phosphorus and potassium fertilizer. (3) Flowering and planting plants should increase phosphorus and potassium fertilizers appropriately. (4) Increase the amount of nitrogen fertilizer during the rapid growth season. (5) Apply phosphorus and potassium fertilizers at the end of autumn and winter, and apply less nitrogen fertilizer to help the plants resist cold. (6) Controlling water and controlling water in winter to ensure safe wintering. (7) Apply more fertilizer on sunny days, and fertilize less on rainy days. (8) It is not advisable to apply fertilizer when the temperature of the culture substrate is lower than 15 °C.

2. Fertilization method

Because the surface of the leaf has a layer of wax, which affects the absorption of nutrients by the leaves, the fertilization of the anthurium is better than the foliar application. In addition, drip fertigation keeps the leaves and flowers clean. The nutrient supply of Anthurium is mainly determined by the amount of precipitation or the total amount of water supplied. The amount of water supplied is related to the growth period of the substrate, season and plant. It is generally required to spray 3 liters per day per square meter or 2 liters of drip irrigation. The nutrient content per liter of fertilizer solution should be no less than 1 gram. Under the best facilities, the water supply is generally 7 liters per week in winter and 21 liters per week in summer. When fertilizing, it is best to use a water pump or an injector to mix water and fertilizer so that the plant can obtain a substantially constant amount of fertilizer per irrigation.

3, matters needing attention

When using a mixed tank (pool) system for fertilization, care should be taken not to mix high concentrations of nitrogen, phosphorus, potassium and sulphate fertilizers into the calcium-containing matrix, otherwise gypsum formation will result in fertilizer failure. After manual fertilization, it should be rinsed according to the standard of 2 liters of clean water per square meter, otherwise it may cause burning or burning leaves. In addition, it is best to use slow release fertilizers in the absence of rain during the rainy season. For example, the fertility of Omo Slow Release Fertilizer can last for several months, which means that there is always enough nutrient supply before most nutrients are washed away. However, slow-release fertilizers contain only a few major nutrients and are low in concentration, so it is still necessary to apply fertilizer every week.

In addition, to regularly check the matrix nutrition, you can judge the types of nutrients that should be increased or decreased in a timely manner to prevent the occurrence of deficiency syndrome. It is appropriate to take samples every 4 to 8 weeks. Regular testing also allows for changes in the Ec value, pH, and bicarbonate content of the substrate.

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