The harm and function of the latest water lotus

Water hyacinth also known as water hyacinth, etc., for the rain long flower family water hyacinth is a floating herb, native to Brazil. Now widely distributed in China's Yangtze River, Yellow River Basin and South China provinces, adaptability is very strong, once introduced by many countries, widely distributed around the world, but also included in the world's top 100 alien invasive species, let's take a look at the harm and role of water lily!

Harm of Water Lotus

1. Water lily blocks navigation channels, affects shipping and drainage, and becomes the number one enemy of agriculture, water conservancy and environmental protection.

2. Water lily restricts the flow of water body, and the water body becomes smelly without sunlight, which reduces the dissolved oxygen in the water body, inhibits the growth of plankton, and destroys the ecological environment of the river.

3. Water lily provides breeding ground for schistosomiasis and encephalitis influenza, breeds mosquitoes and flies, and provides opportunities for mosquito larvae to breathe and reproduce.

4, water lotus will destroy drinking water resources, due to the blockage, water can not flow freely, various pollution sources such as heavy metals and other trace elements harmful to the human body can not be effectively removed, people directly or indirectly absorb contaminated water.

5, water lotus cover water surface also increased the evaporation of water, 8 to 10 times higher than the evaporation of open water surface, resulting in water loss.

6. Water lily has an influence on the fresh water quality of water source. A large number of water lily covering the water surface will reduce the pH value of the water, increase the CO2 concentration, increase the odor value concentration and chroma of the water, and increase the acidity of the water, so that the use value of water resources will be greatly reduced until it is not drinkable.

7. The outbreak of water lily and its decomposition stage will consume a large amount of dissolved oxygen in the water body at the same time, and the breeding space of underwater animals such as fish will be reduced, and even a large number of fish will die.

The role of water lily

1, agricultural: water lotus nitrogen, phosphorus, potassium, calcium and other elements have a strong enrichment effect, of which a large number of elements potassium enrichment is particularly prominent. in that exist water lily resource utilization mode, the simple and common method is to use the water lily to prepare organic fertilizer and produce methane, and the dry pow of the water lily can also be directly used or the ash after burning can be used as fertilizer or soil improver.

2. Edible: Water lily flowers and tender leaves can be eaten directly. They taste fresh and refreshing, and have the effect of moistening intestines and relaxing bowels. Indigenous people in Malaysia and other places often use water lily tender leaves and flowers as vegetables.

3, feeding: water lily soft and juicy, fresh and delicious, rich in nutrients, dry matter is mainly crude protein, crude fat, crude fiber, etc., can be used as chicken, duck, goose, fish, pig excellent feed. Chop, crush or beat it, mix it with bran, and make mixed feed or silage, which can not only improve the utilization rate of feed, but also kill parasites.

4, medicinal: water lotus whole grass taste light, cool nature, has the effect of clearing heat, diuretic swelling, rheumatism, used for heatstroke thirst, edema, urination adverse, external application of hot sores. The whole plant can cure heatstroke, polydipsia, nephritis, edema, dysuria and furuncle. Whole herb cure urinary tract stone《Gui Yao Bian》. Whole herb cure cold fever, urine red pain, rubella, furuncle swelling "Xiang Lan Kao".

5. Ornamental: Water lily is a floating herb with developed fibrous roots, extremely short stems, light blue flowers, multi-edged trumpet-shaped flowers and larger petals above. The center of the petals has a distinct bright yellow spot, shaped like a phoenix eye, also like the flower point at the tail end of peacock feathers, very eye-catching and beautiful. It is often used as a landscaping material in garden waterscape. It is planted in a corner of a small pond and framed with bamboo. It is wild and quiet.

Environmental protection: Water lily is a good plant for monitoring environmental pollution. It can monitor whether arsenic exists in water and purify harmful substances such as mercury, cadmium and lead in water. In the process of growth, it can absorb a large amount of nitrogen, phosphorus and some heavy metal elements in the water body. The effect of water lily on purifying industrial wastewater or domestic sewage with more organic matters is more ideal.

Management of water lily

1. Prevention and control of water pollution: water nutrition is the foundation for the continuous reproduction and growth of water lily, so it is necessary to prevent and control the flooding of water lily from the source. People's living standard has been greatly improved and the population has been expanding. The discharge of domestic sewage and organic matter has been greatly improved, which provides an important nutrient source for the growth of water lily. Therefore, it is necessary to control the discharge of domestic sewage and the orderly discharge of industrial and agricultural wastewater. When it is necessary to discharge, it must be discharged after pollution-free water treatment.

2. Mechanical stirring method: For waters with greater harm to water lily, relevant machinery can be used to stir and break it, expand the illumination area of water body, increase the flow of water body, and ensure the smooth progress of breeding, fishing and shipping.

3. Manual clearance method: use manpower and material resources to directly pick up water lily and transport it to land for clearance. This is also the most commonly used method at the beginning of the period, and it works better for small water surfaces. If the water area is too large, the cost of manpower and material resources is too high, and it is not recommended to use it.

4, chemical control method: if in the rice field ridge or vegetable empty stubble field, use 20% per mu to make it breast oil 50 ml, can be mixed with water spray. If it is a river, pond or ditch, use 41% Roundup 300~ 400ml, 30g of imazapyr, 60g of paraquat or 300g of 36% Glycinate·Chlorosulphonate soluble powder per mu, add 20kg of water and spray fine mist to make the liquid adhere to the stems and leaves of water peanut.

5. Biological control method: In late spring or early summer, when the minimum temperature rises steadily to above 13℃, 1500~2000 adults of water lily weevils are released per mu, which can achieve certain control purposes.

6, waste into treasure method: can use water lotus to make pig or fish feed, the general practice is to crush water lotus beating, then add 2% salt mix well, and then use it to feed pigs or fish, can also be used to improve water quality.