How to grow water lilies in fish ponds? What if the leaves turn black?

In recent years, many friends who have fish ponds at home will choose to grow water lilies at home, but many people do not know how to grow water lilies in fish ponds. What if the leaves turn black?

How to grow water lilies in fish ponds?

1. Material selection

? When planting water lilies, choose a non-bottom hole flower jar with a high 50cm and a large caliber as far as possible, put a uniform mixture of nutrient soil in the flowerpot, and the filling depth is controlled at 30~40cm, which is convenient for water storage. The well-growing vegetative form is buried in the center of the vase, and the depth is slightly exposed to the soil with the terminal bud. After planting, water is added but not filled, and 2~3cm above the soil layer is the best, which is easy to heat up to ensure the survival rate. The water level increases gradually with the growth of the plant. The advantage of this method is that it is convenient to manage, but the disadvantage is that it is difficult to overwintering in winter in Beijing-Tianjin area, and it is necessary to move into the greenhouse or sink into the pool. ?

2. Sinking basin

Choose non-hole nutrition bowl, high 30cm, caliber 40cm, planting method and nutrient soil such as tank load, fill height about 25cm, sink into the pool after planting, the water level of the pool should be controlled at just submerged nutrition bowl, and then grow and gradually increase the water level. The advantage of this method is that it is easy to overwinter. it only needs to raise the water level in winter to keep the top bud below the ice to overwinter. the disadvantage is that the management must enter the pool and feel the same slightly.

3. Cultivation

Water lilies should be planted in ponds with fertile soil, with at least 30cm deep soil at the bottom, and propagators can be planted directly into the soil. The water level should be shallow at the beginning, controlled in 2~3cm, easy to heat up, and gradually increase with growth. ? According to different regions, the water level in the pool can be deepened before winter, so that the rhizome can survive the winter under the ice. The advantage is that the population effect is good, the growth is large, and the disadvantage is that it is difficult to dig in the next year, and it is not easy to control diseases and insect pests.

4. Pest control

After planting water lilies, to prevent diseases and insect pests, many aquatic plants with soft leaves invade leaves and flower stems in summer, resulting in changes in flower color. The eggs overwintered on plum plants, especially on plum blossoms and Hawthorn trees, and sparsely on cherry trees. Plum plants should not be planted in large areas near the water, or these host plants should be washed with tar in winter, and water hoses can also be used to rinse leaves and spray insecticides.

Second, why the leaves of water lilies turn black?

1. Excessive fertilization will make the leaves reduce or even stop water absorption, and the leaves will blacken and zoom.

2. Bacterial infection.

3. Lack of light is too damp.

4. Dirty water or lack of water, etc.

Third, what if the leaves of water lilies turn black?

1. Change water immediately when topdressing too much fertilizer. It should be noted that when changing water, half of the water is changed each time, and the water temperature is similar, and the temperature difference is too large, which will lead to excessive change of pH in the water and affect the water absorption of leaves. In addition, too much bottom fertilizer turns the basin to change soil.

2. Leaf disease can occur during the growing period. to cut off the bad leaves, you can use 50% carbendazim, 1000 times liquid spraying or appropriate pesticide spraying.

3. Strengthen the sunshine time.

4. The direct change of water can lead to the change of water temperature and acid-base change. The correct way is to add isothermal water after the water evaporates less, deficit water in the growing season, and the leaf is easy to coke edge.

Time: 2019-03-14 Click: