Scientific fertilization technology of flowers and mastering topdressing methods of edible fungi

Fertilization is an important technical measure for flower production. In order to obtain high-quality flower products with beautiful flowers and leaves in time, we should consider all factors such as fertilizer demand characteristics, different growth stages, root depth, soil, climate and market demand characteristics of flowers, so as to apply fertilizer scientifically and improve fertilizer utilization rate.

1. Fertilization by stages according to different growth stages of flowers

1. Fertilize according to the principle of physiological balance. Different flower species have different biological characteristics and fertilizer requirements, so the requirements of fertilization are also different. Flowers with ornamental fruit as the main products (such as gold, grapes, etc.) not only need a lot of nitrogen fertilizer, but also phosphorus and potash fertilizer should account for an important proportion. Flowers with foliage mainly apply potash fertilizer on the basis of sufficient nitrogen fertilizer. Flowers mainly watch flowers, pay more attention to nitrogen fertilizer, combined with phosphorus and potassium fertilizer, and pay attention to the application of trace elements and rare earth fertilizer. In the process of fertilization, the balance and cooperation of various elements should be emphasized in order to give full play to the maximum yield-increasing benefit of fertilizer.

2. Fertilizing according to different growth and development periods of flowers. The same kind of flower, in different growth stages, the demand for nutrient elements is also very different, which needs to be fertilized by stages. For example, perennial flowers, when the fast-growing stage of seedlings, happens to be the long root group, branches and leaves, high growth period, when the nutrient consumption is particularly high, it is necessary to pay special attention to fertilization. Among them, the proportion of nitrogen fertilizer is the largest, and mixed with phosphorus and potassium fertilizer. In this period, if a variety of nutrients can be fully supplied, flowers will flourish and lay a nutritional foundation for flowering.

3. Fertilizing according to different growing seasons. The same flower species not only have different requirements for fertilizer supply at different growth stages, but also have different requirements in different growing seasons of the year. In a year, basal fertilizer should be applied before root growth resumes in early spring and defoliation dormancy in autumn. Nitrogen fertilizer is very beneficial to root growth. Flowers need to absorb more nitrogen fertilizer in the spring sprouting and sprouting period to ensure vigorous vegetative growth, but it should not be paid attention to too early, such as premature, the root system has not fully returned to normal growth, poor absorption, fertilizer is easy to lose, at this time the root system is young, if the concentration of soil solution is on the high side, it is easy to cause root burn. After entering June, many woody flowers begin flower bud differentiation, at this time, nitrogen fertilizer should be controlled to ensure the supply of phosphorus and potassium fertilizer.

2. Fertilizing according to flower growth habits and ornamental characteristics

Foliage flowers, trees, shade tree species, under the premise that the plant does not grow only and does not affect the cold resistance, more nitrogen fertilizer can be applied in the growing season to promote luxuriant branches and leaves, thick green leaves and improve their ornamental ability. On the other hand, the species of flowering in early spring should ensure an adequate supply of base fertilizer in winter to make their flowers larger and more. For the species of flowers that bloom many times a year, in addition to applying base fertilizer during the dormant period, the nutrients consumed by shoot sprouting and flowering should be replenished in time after each flowering so as to ensure the normal opening of the next crop of flowers.

3. Fertilizing according to fertilizer characteristics

Some fertilizers have special functions and should be treated and applied separately. For example, boron fertilizer can promote root growth, improve flowering and knot strength, and enhance cold resistance; quicklime can reduce soil acidity and improve soil structure, which is an important fertilizer in the acid soil area of red and yellow soil in the south, and it can also make clay loose; potassium fertilizer can promote photosynthesis and make up for the adverse consequences of lack of light and low temperature in greenhouse in winter.