Planting is usually carried out before and after the Qingming Festival, but the specific time depends on the water temperature stabilized to more than 12 degrees before. The weather is different every year, sometimes the temperature reaches before Qingming, but sometimes the temperature is still very low. But some varieties are early-maturing varieties, can not be planted so early. But late-maturing varieties can be cultivated early.
2, selection of planting
Choice of high-quality varieties, choose early, medium and late three varieties of cultivation, can be listed in batches, but also can be left to plant. Direct planting, planting in the river pond, keep the water depth of 3 centimeters planting, planting has grown rhododendron buds rhododendron, even sowing. Before sowing, clean the pond. Generally an acre of twenty pounds of rhododendron. Water depth can be planted in seedlings. Seedling one acre with one hundred and twenty pounds of seed, can transplant five acres of water, seedling two nursery transplant.
3, cultivation management
One acre using four thousand pounds of livestock fertilizer as base fertilizer. After germination, an acre of 10 pounds of urea fertilizer, several times after the flowering of the use of Bika silicon soluble potassium dihydrogen phosphate into the spray. Prevent aphids, use 90% crystal trichlorfon 800 times liquid spray. Spray more than once a week. The main disease is diamond plague, the use of 5% Wellbutrin 400g to 50kg of water spray. Remove weeds at any time, some water plants.
4, environmental requirements
Planted in temperate wet mud, suitable for ponds, swamps, river diversion fields. Like a warm environment, not suitable for planting in a cold environment, the most suitable temperature for growth is 25 degrees to 36 degrees, the general summer water 3 temperature will be a little lower. Planting water depth, sowing is 3 centimeters, gradually increase after the seedlings, grow into keep about 0.6 meters.