When is it good to fertilize hydroponic flowers? What are the key points of fertilization?

Hydroponic flowers are water as the medium, the fertilizer used is prepared from a variety of nutrients (macroelements and trace elements), and in hydroponic flowers, reasonable and effective fertilization is a very important management measure, the next small series will talk about the fertilization points of hydroponic flowers.

1. Fertilization characteristics

Hydroponic flowers are placed in a bottomless-7L container and cultivated in water as a medium. How much fertilizer is applied to hydroponic flowers, all dissolved in water, of course, once the fertilizer exceeds the tolerance of flower plants, it will cause harm to flowers, so the amount and type of fertilizer for hydroponic flowers should be strictly controlled.

II. Fertilization quantity and time

Hydroponic flowers should be fertilized in spring and autumn when they grow vigorously, while winter and summer seasons are generally not suitable for fertilization. Of course, if the plants grow poorly due to malnutrition in summer, 0.1% urea solution can be sprayed on the leaves. When fertilizing, follow the principle of applying less and more fertilizer, and according to the times of changing water, generally add nutrient solution every time you change water.

III. Fertilization techniques

1. Reasonable fertilization according to different flower types

Different flower species have different adaptability to fertilizer, so it is necessary to fertilize according to the characteristics of flower plants. For flowers with thin roots and poor fertility tolerance, the principle of light, less and thin fertilization should be mastered; for flowers with fertility tolerance, the principle of less and frequent fertilization should be followed; for flowers with leaves, nitrogen fertilizer should be applied; for flowers with colorful stripes or patches on the leaf surface, nitrogen fertilizer should be applied less.(Excessive nitrogen fertilizer will reduce the pattern lines), appropriate increase phosphorus and potassium fertilizer; for flowering flowers, in the flower bud differentiation and flower bud development stage, phosphorus and potassium fertilizer are mainly applied, supplemented by nitrogen fertilizer.

2. Reasonable fertilization according to season and temperature

In hot summer, fertilizer concentration should be reduced. For flowers that are afraid of high temperature, when physiological activities are slow or even stop growing, fertilization should be stopped, otherwise it will cause fertilizer damage.

3. Fertilize according to the growth potential of flowers

Indoor lighting conditions are not as good as outdoor, so most indoor flowers are shade-loving or semi-shade-loving, plant growth is relatively thin, and the fertilizer concentration requirements will naturally decrease. Therefore, the concentration of fertilizer should be reduced as much as possible for flowers with poor lighting conditions.

4. Several problems that should be paid attention to when fertilizing

For flowers that have just been hydroponic, fertilizer should be applied after they have adapted to the water environment; urea should not be applied directly to the water, otherwise ammonia will be harmful to the flowers and cause flower poisoning; some undesirable phenomena due to excessive fertilization of hydroponic flowers should be found, and rotten roots should be cut off as soon as possible, and water should be changed and roots washed in time.

Key points of fertilization techniques for hydroponic flowers

1. Selection of fertilizer

Hydroponic flowers need to apply special nutrient solution, generally not their own preparation. Soilless culture nutrient solution is prepared according to the proportion, concentration and acidity of nutrients required by flowers. In addition to containing a large number of elements required by plants, it also contains other trace elements. When using nutrient solution, it should be strictly in accordance with the requirements of the instructions, grasp the fertilizer concentration, do not blindly apply, so as not to cause fertilizer damage. The nutrient solution purchased should be stored in a dark place and at a low temperature. Do not use metal containers for storage. Different flowers have different requirements for fertilizer nutrients. Generally, foliage plants should be mainly nitrogen fertilizer supplemented with phosphorus and potassium fertilizer; flowering plants should be mainly phosphorus and potassium fertilizer supplemented with nitrogen fertilizer, especially at the stage of flower bud differentiation and bud development.

2. fertilization time

Hydroponic flowers should be fertilized in spring and autumn when they grow vigorously, and winter and summer should not be carried out generally. If the flowers appear malnutrition in summer and affect the growth of the situation, can spray 0.1% urea solution on the foliage.

3. fertilizer concentration

When fertilizing, strictly control the concentration of fertilizer, because all the nutrients applied are dissolved in water, when the concentration reaches a certain height, it will cause fertilizer damage to flowers, thus affecting the growth of flowers, and even causing the death of the whole plant.① Different flower fertilization concentration is different, fruit taro, mini turtle bamboo, ruby taro and other flowers are more resistant to fertilizer, fertilization can be thicker; thin root flowers such as Sihaibo, Commelina, Begonia, Colored Leaf Grass and other poor fertilizer tolerance, fertilization should be lighter. 2 hydroponic flowers should also be determined according to the strength of plant growth potential to apply concentration, generally speaking, strong growth potential of the plant fertilizer tolerance is stronger, fertilization can be relatively concentrated, and vice versa should be lighter. Indoor hydroponic flowers in malnutrition, should stop fertilization or reduce the concentration of fertilization, so as not to cause fertilizer damage.

4. fertilizer treatment

If the flower branches and leaves are weak and have no spirit after fertilization, the leaves lose luster, and the roots rot and stink, which is the characteristic of fertilizer damage. Once the above situation occurs, the rotten roots should be cut off in time, replaced with clean water and placed in a dark place for maintenance, the water should be changed once a day, and the roots of the flowers should be checked, and the rotten roots should be cut off in time until the new roots germinate again, and then transferred to normal maintenance.

More and more flower friends began to try hydroponic flowers, hydroponic flowers relative to soil culture flowers have certain advantages, nevertheless, there are still a lot of flower friends on hydroponic flowers method master is not very comprehensive, resulting in a lot of hydroponic flowers raised dead, today Xiaobian will introduce you to the key elements of hydroponic flower success, for everyone's reference and learning. The most critical measure for the success of hydroponic flowers is to change the water. First of all, plants grow in water and consume oxygen constantly. With the growth of flowers, the oxygen in the water will continue to decrease, and when it is reduced to a certain amount, it will have a negative impact on the growth of flowers. Although the oxygen in the air will continue to supplement the water, but its speed is relatively slow, far from meeting the oxygen absorption of plant roots. Secondly, the roots of flowers will produce mucus in the process of growth, and mucus will affect water quality when it is too much. Thirdly, when flowers are hydroponic, a certain amount of nutrient solution should be added to the water. If the nutrient elements are absorbed by the flowers, the rest will remain in the water, but when the residual substances reach a certain amount, they will also cause certain harm to the growth of flowers. Therefore, water for hydroponic flowers must be changed regularly. Because the oxygen content in water is inversely proportional to the temperature, that is, the higher the temperature and water temperature, the lower the oxygen content in the water, and the lower the temperature and water temperature, the higher the oxygen content in the water. In addition, plants have different oxygen requirements at different times, so the number of days between water changes should vary depending on the season. Although plants grow vigorously in spring and autumn and need more oxygen, the oxygen content in the water is also more, so the water can be changed once every 5 to 7 days. Winter plant growth is dormant or very slow growth state, consumption of oxygen is less, and the water contains sufficient oxygen, so the water change interval can be longer, generally 7 to 10 days for a change of water. Summer high temperature season, plant respiration is very strong, need to consume a lot of oxygen, and at the same time the oxygen content in the water is very small, coupled with high temperature microorganisms easy to reproduce rapidly, resulting in deterioration of water quality, in order to ensure the normal growth of flowers, must strengthen the water change, generally 2~3 days to change the water. In high temperature or excessive fertilization, plants will appear rotten roots phenomenon, in addition to timely cutting rotten roots, but also need to change water every day, until the plant grows new roots to resume normal growth, can be transferred to normal water change. When changing water, rinse the roots of flowers with clean water, wash away the mucus from the roots with your hands, and cut off the aged roots and rotten roots. Flowers grown in places with sufficient light are easy to grow moss on vessels and roots, which deteriorates the transparency of containers, affects the viewing of roots, and consumes oxygen in water. When cleaning, clean the moss on the utensils and roots. The roots of plants also have the function of breathing oxygen in the air, so when hydroponic flowers change water, do not fill the water too much, let part of the roots exposed to the water surface. Such hydroponic flowers can not only absorb oxygen in water, but also absorb part of the oxygen in the air, which can meet the oxygen demand of plant growth. Water for hydroponic flowers should be pollution-free, slightly acidic, and allow only minimal microorganisms and bacteria. The tap water is treated by the water plant, and the number of bacteria and microorganisms is effectively controlled, so it basically meets the water demand of hydroponic flowers. In addition, hydroponic flowers should be properly ventilated, the quality of hydroponic flowers is directly related to the oxygen content in the water, and maintaining good indoor ventilation can increase the oxygen content in the water. Therefore, for the cultivation of hydroponic flowers, ventilation should be strengthened to keep indoor air fresh. Summary: The above is the knowledge about hydroponic flowers, I hope to help you.