First, how to cultivate flower soil scientifically: it is required to use loose soil with good drainage and permeability, rich humus and weak alkalinity. For example, topsoil of vegetable fields and woodlands, soil made of pond silt and human excrement, and rotten deciduous turf are all good farming soils.
Water: Watering should be timely and appropriate according to the demand of flowers for water. If you don't do it, you will fall completely. It is better to water in the morning and evening in summer and at noon in winter.
Fertilizer: Fertilizer should be sufficient. Fertilization is the best when the leaves of plants become weak and thin. Fertilize more when the growth is strong and less when the growth is slow. Apply more nitrogen fertilizer at seedling stage and more phosphorus fertilizer at bud stage. Apply appropriate fertilizer every time.
Lighting: Know which flowers like strong light and which flowers only need weak light, then determine the planting location of flowers, and control the flowering period with the length of oral lighting.
Temperature: It has a great influence on the growth and flowering habits of flowers.
Some flowers need warmth to bloom. Such as peach blossom, magnolia and peony; Plum blossoms like to bloom in severe winter. Second, how to prune flowers correctly
1. It's never too late. Some tree species can be cut down in winter, such as Lagerstroemia indica. After being cut short in winter, the branches look very dry. When spring comes, new buds will grow on the short branches. But there are two situations that will make the winter shear invalid. First, the tree species are not suitable,
If the elm is cut down in winter, its short branches will dry up because of water loss in the long dry winter. Second, the branches are too thin, no matter what tree species, cutting the branches too thin in winter will inevitably cause the branches to die. In fact, "spring cutting" is better than "winter cutting". Prune trees before germination in early spring. At this time, the air temperature is high, and new buds will sprout in a short time, so don't worry about the dry branches. 2. Cut thick but not thin. When the branches are cut short to form a bracket, the length of the bracket must be determined in advance. It is assumed that the length of the bracket will not change greatly after the work is formed. But if the branches are tender, they will continue to grow faster. In this way, the length of several brackets will greatly exceed the predetermined length, which is out of proportion. The whole tree is slender and thin and can't be repaired. Practice has proved that the correct way is to wait until the branches are lignified and grow to a predetermined thickness before cutting. In this way, the lateral branches will inevitably form a better angle.
3. cut fat without thinning. Generally, the old branches are thick, and the fat branches are cut before the new branches grow. Moreover, the nutrients absorbed by the fat branches are also sufficient. In order to avoid unbalanced nutrition, fat branches should also be reduced.
Third, how to change the alkaline soil of potted flowers
1. Dig out most of the soil of potted flowers, then add 1.2% ground sulfur powder and mix well.
Then put the dug soil back into the flowerpot and water it in time. This can not only make the soil loose and breathable, but also make the alkaline soil become acidic. 2. Pour 0.2% ferrous sulfate solution into alkaline basin soil, and test the soil with test paper after a few days. If there is no change, continue watering until acidic soil is formed.
3. Fruit skins such as watermelon skin, apple skin, banana skin, pear skin, etc. Can be collected together, put into a container, fully soaked in clear water, and sealed. After more than 20 days, the peel will ferment. At this time, this peel solution can be added with 4 times of clear water and irrigated with alkaline potted flower soil every few days. After several times of watering, alkaline soil can not only become acidic soil, but also be used as flower fertilizer.
You know, many flowers in nature, except a small number of alkali-loving flowers, are mostly acid-loving flowers. Soil is the premise of all flower growth, so it is necessary to acidify flower soil scientifically.