Precautions for raising medlar flowers:
1. The acid soil : soil, water and fertilizer, alkali, make the plant can not absorb iron, but affect the formation of chlorophyll, so that the branches, leaves, and even death. Use fertile, loose, well-drained acidic soils, such as the pine sawdust into the soil, the effect is also very good.
2. Hi-yellow : avoid sun exposure, but often people mistakenly believe that gardenia requires all yin, which causes mistakes in cultivation. In fact, while paying attention to cultivating its cool environment, it is necessary to maintain 60% of the light throughout the day. Meet the needs of its growth.
3. Humidity : If the air humidity is lower than 70%, it will directly affect the flower bud differentiation and the growth of the flower buds. However, too much wetness will cause the roots to rot and the leaves to fall off. In addition to normal watering, the surface of the leaves and nearby ground should be sprayed with clean water regularly to increase the humidity of the air.
4. Hi fat : It is advisable to apply cooked bean cake, sesame sauce residue, peanut bran and other fertilizers. After fermenting and fermenting, it can be acidic, but it must be applied with thin fertilizer, avoid heavy fertilizer and raw fertilizer, and do not apply fertilizer during hibernation. If the planting is less than three years, it is forbidden to apply manure. Excessive application of nitrogen fertilizer will result in thick branches, large leaves, and thick green, but not flowering. In the absence of phosphorus and potassium fertilizer, there will also be no flowering or buds withered and shedding.
5. Hi temperature : 18 ~ 22 ° C in the growth period, 5 ~ 10 ° C in the winter, and less than -10 ° C is susceptible to freezing.
6. Timely pruning : The germination of the scorpion is strong, the branches are easy to overlap, the air is not ventilated, and the nutrition is dispersed. When the shape is normal, three main branches should be selected according to the tree shape, and it is required to cut off other branches erupted by the roots at any time. After the flower is thanked, the branches should be shortened in time to promote the sprouting of new branches under the cut. When the new branch grows three sections, it is topped to avoid blind growth. [2]
7. To prevent yellowing. There are four causes:
1 Iron deficiency. The soil contains too much calcareous, alkali, phosphorus, manganese, etc., which will affect the absorption of iron by the plant, affect the formation of chlorophyll, make the young leaves chlorotic, spread the whole leaf, and can apply 1/500 ferrous sulfate or 0.2% black. Drowning, once every 10 days.
2 magnesium deficiency. Acidic red loam and excessive potassium and ammonium are prone to magnesium deficiency, which causes the old leaves of the lower part of the plant to lose green and yellow. It can be sprayed with 1% to 2% magnesium sulfate solution, but excessive application of magnesium will cause calcium deficiency. And hindered the development of xylem in roots and stems.
3 The basin soil is too wet or too dry.
4 Summer exposure.
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