The latest planting methods of water lilies

Nymphae is also known as meridian lily, pink water lily, wild water lily and so on. it is a perennial aquatic herb of Nymphaeaceae. It is distributed from northeast to Yunnan and west to Xinjiang in China. It is born in still water bodies such as ponds and lakes. Many park water bodies are cultivated as ornamental plants, rhizomes can be eaten or brewed, and the whole grass can be used as green manure. Let's take a look at the planting method of water lilies.

Growth habits of water lilies

Water lilies like sunshine, good ventilation, lax requirements on soil quality, pH 6-8 can grow normally, the most suitable water depth is 25-30 cm, the deepest is not more than 80 cm, like loam rich in organic matter. It germinates long leaves from March to April, blossoms one after another from May to August, and each flower blossoms for 2 to 5 days. Bear fruit after flowering. The stems and leaves withered from October to November. It sprouted again the following spring. It germinated from late March to early April, pregnant buds in late April or early May, bloomed from June to August, yellow leaves from October to November, and entered dormancy period after November. Born in ponds and lakes, it is often cultivated in the pools of some parks.

Propagation methods of water lilies

1. Ramet: when the water lily is divided, dig out the rhizome first, select the rhizome with full new buds, cut into root segments of 8 cm to 10 cm long, each section with at least one bud, and then plant. The terminal bud is buried upward in the topsoil, and the depth of the covered soil is that the bud eye of the plant is flat with the soil surface, and each pot is planted in 5-7 segments. After planting, a little sun, can be injected into shallow water, in order to maintain the temperature of the water, but irrigation should not be too deep, otherwise it will affect germination. The water level will be deepened when the temperature rises and new buds sprout.

2. Sowing: water lily seeds must still be stored in water after harvest, such as dry storage will lose the ability to germinate. Sowing in March to April, the basin soil with fertile clayey loam, the full soil should not be too full, 5 cm away from the basin mouth, 1 cm after sowing seeds, compacted and immersed in water, the water surface is 3 cm 4 cm higher than the basin soil, and the basin soil is covered with glass and placed in a warm place in the sun to increase the temperature in the basin. The suitable sowing temperature is 25: 30 ℃. After about half a month, it can blossom in the second year.

Planting methods of water lilies

1. Soil: Nymphae prefers humus-rich and fertile clayey soil. Therefore, it is better to choose the silt deposited in Hanoi or ponds for a long time for cultivation.

2. Seed stem: water lilies are mostly cultivated by the method of dividing plants. the underground rhizomes used for planting should be selected to grow vigorously, virus-free, non-damaging, non-rotting and with new buds, and cut into segments 6-10 cm long.

3. Shallow planting: if the underground stem of water lily species is too deep in the mud, one is the low soil temperature, the other is lack of oxygen, which is not conducive to early growth and rapid development, and the cultivation depth is generally moderate to keep the new buds on the underground stem flat with the soil surface.

4. Lighting: Nymphae prefers a sunny, warm, humid and well-ventilated climate. Water lilies cultivated in pots must be placed in a position with sufficient light so that they can receive full light.

5. Water body: water lilies like to grow in calmer water bodies without large waves or rapids, so planting in artificial fountain pools with high-pressure water columns or pools with rapids waterfalls often grow poorly.

Control of diseases and insect pests of water lilies

1, rot disease: select disease-resistant varieties, seriously diseased fields for 2-3 years of rotation, select disease-free lotus root and use 50% carbendazim or 20% methyl thiophanate wettable powder 800 times solution plus 75% chlorothalonil wettable powder 800 times solution, sow after spraying, cover plastic film and seal for 24 hours, dry before planting. Remove the diseased plant in time and spray 50% carbendazim WP 600 times and 75% Chlorothalonil WP 600 times.

2. Leaf rot: remove the diseased and residual plants during harvest and bury them deeply or burn them centrally in order to reduce the source of bacteria. At the initial stage of the disease, 50% carbendazim wettable powder 800 times or 70% thiophanate methyl wettable powder 800 times or 30% basic copper sulfate suspension 500 times were sprayed once every 10 days for 2 times.

3. Anthrax: collect and bury the disease residue or burn it in the growing season, apply fertilizer timely and appropriately, remove the diseased plant in time and spray 50% carbendazim wettable powder, 75% chlorothalonil wettable powder, 36% thiophanate methyl suspension, 50% carbendazim wettable powder 1500 times or 80% anthrax Fumei wettable powder 1500 times, spray once every 10 days or so for 3 times.

4. Small fluorescent leaf beetle: small fluorescent leaf beetle is a destructive pest. The adult overwinters in the vegetation near the pool, lays eggs on the leaf surface at the end of spring, and can produce 2-3 generations in a season. At this time, the leaf surface can be washed with water, so that the adults and pupae fall into the water and are swallowed by fish. Once the larva is damaged, it can be killed by 1200 times the liquid enemy.

5. APHIS constricta: APHIS constricta harms many aquatic plants with soft leaves and damages 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.

6. Snails: when snails are harmful, carbofuran or trichlorfon can be mixed into sawdust, loaded into a cloth bag and tied to the petiole, so that the bag floats on the surface of the water, fluctuates with the water, spreads the liquid and kills pests. The effect of biological control is very good. Raising 5 kg Loach on the water surface of 1000 square meters can effectively stop the spread and overflow of pests.

7. Water moss: spray water moss with 0.3% 0.5% copper sulfate.

8. Aphids: the damaged leaves can be sprayed with dichlorvos 1000-1200 times, or with 50% dimethoate EC 2000-2500 times.