Foliar fertilization period. Phyllostachys pubescens fertilization is generally carried out before and after flowering, during the fruit period, and before the winter. The fertilization at each stage is performed once every 7 to 10 days for 2 to 3 consecutive times. During the vegetative growth period, more nitrogen and potassium fertilizers are applied. Phosphate fertilizer is applied more during flower bud formation and fruit growth. Different types of fertilizers have different spraying effects at different times. For example, phosphorus fertilizer and zinc fertilizer should be sprayed at the initial flowering stage, while molybdenum fertilizer should be sprayed before flowering.
The type of fertilizer. In order to make the flowers of the ornamental flowers colorful, the fruit and fruit should be sufficient to satisfy the requirements of the three basic nutrients of N, P, and K, and at the same time they must not lack other trace elements such as calcium, magnesium and sulfur. Iron, zinc, boron, molybdenum, copper, manganese.
Foliar spraying concentration. When fertilizing flowers and trees, it is necessary to pay attention to different fertilizers to make different concentrations, and care should be taken to avoid excessive concentrations. If the concentration is too large, it is easy to cause damage to flowers and trees, and the amount of drug is insufficient and the fertilizer is not effective.
Spray fertilizer site. During fertilization, the drug is sprayed on the back of the leaf so that the drug is absorbed into the pores and is easily absorbed. Foliar fertilization is not only to spray the outer periphery of the flower and tree crown, but also to spray the inner leaf of the tree. The upper and lower leaves must be sprayed. In addition, spray fertilizer should be added to pay attention to uniform spraying, fine spray, atomization, so as to receive good results.
Foliar spray timing. When the temperature is between 18°C ​​and 25°C, the stomata of the leaves will be fully opened. At this time, fertilization will greatly increase the fertilizer efficiency. When the temperature exceeds 30°C, the stomata of the leaves will be closed, and the sprayed fertilizer will be difficult to be absorbed by the leaves. At this time can not be sprayed, so as not to cause injury; when the humidity is high, the fertilizer solution stays on the leaves for a long time, more nutrients are absorbed; when the air humidity is small, fertilization is not easily absorbed by the leaves. Therefore, the foliar fertilization is usually conducted on a sunny or cloudy day without wind, and it is best to spray in the early morning or evening. Fertilizer can be added to the photosynthetic nutrient film fertilizer to help plants absorb a lot of light, light, light, compatible with conventional fertilizers, nutrients supply plant growth and development to the limit.
Two-Piece Baseplate,2 Piece Colostomy Bags Chassis,Ostomy Bags Chassis,Hypoallergenic Ostomy Chassis
Wenzhou Celecare Medical Instruments Co.,Ltd , https://www.wzcelecare.com