Green flowers, how to cultivate rhododendron in water

The characteristic of hydroponics is that the nutrient solution made from human cockroaches is used instead of soil.

Preparation of Lake Matrix

The roots of rhododendron are thin and thin, and the matrix needs to be loose to facilitate ventilation and drainage. Take 1 part of vermiculite, 1 part of pearl sand, 1 part of river sand and 1 part of cinder. After inclusion, the matrix was sterilized with 0.1% carbendazim solution, averagely mixed into the matrix, and covered with plastic film for 1 day. It is then washed repeatedly with water, dried, mixed with 0.4% agricultural compound fertilizer, and then covered with plastic film-after a month, it can be used in the basin.

two。 Preparation of nutrient solution

Azaleas are very strict with fertilizers. Dilute fertilizer is used during development. The experimental results show that good results can be obtained by using agricultural compound fertilizer, supplemented by trace elements, pH value controlled at 5 and low concentration foliar fertilizer.

Preparation of a large number of elements: liter water plus 2 grams of agricultural compound fertilizer, adding magnesium sulfate 0.5 grams, as a scale solution.

Preparation of trace elements: Shengshui plus sodium acetate tetraacetate 2g, ferrous sulfate 15g, manganese sulfate 4g, boric acid 6g, zinc sulfate 0.2 g, copper sulfate Ol g, ammonium molybdate 0.2 g is the mother liquor. When in use, lml's scale liquid, coupled with trace element mother liquor lml, is a full amount of elements.

The formula of foliar fertilizer is: l water plus 1g urea, 1g bismuth potassium phosphate, O.O2g boric acid, v.lg.lg.

3. Water and fertilizer management

Because the substrate is drained and has good air permeability, but the water retention is poor, the amount of watering is generally more than that of soil culture, so the substrate can be moist; at this time, the pregnant buds and leaf buds germinate, the amount of fertilizer is very large, lO God-the amount of total nutrient solution. From March onwards, until the bud is a horse's foot, L5 God sprays-sub-leaf fertilizer. After blooming, the amount of water needed is very large. In addition to watering every day, thin sputum should be leaves. At this time, the amount of fertilizer needed is also very large, which can be changed to-worship irrigation-separate nutrient solution, and spray sub-foliar fertilizer to promote the strengthening of new branches to facilitate flower bud differentiation.

After entering the volt, pay attention to the humidity of the joint matrix, and for foliar drinks, the amount of fertilizer can be reduced to 20 days.

After cooling in autumn, the amount of fertilizer application can be increased gradually. After half a month, you will apply all the nutrient solution and spray twice the foliar fertilizer to promote the healthy development of the bud.

After entering winter, du Fu's psychological behavior is weak and is not suitable for fertilization, so he can be watered properly according to the degree of dryness and wetness of the substrate. In the process of cultivation, there were no pests in the roots.

Time: 2019-05-11 Click: