The daily maintenance methods of the leaves of Magnolia grandiflora and the breeding techniques of Cymbidium

Magnolia grandiflora generally refers to flowers like orchids, and flower growers often ask questions about the leaves of orchids, so what we are going to talk about today is how to grow the leaves of orchids.

1 the blade is bright

The "brightness" of leaves is the main index of ornamental. In addition to the characteristics of varieties, the brightness of leaves is also very important in artificial cultivation. The main techniques are as follows: ① ensures that the root system is developed and not rotten root, scientific nutrition soil coordination, fertilization should be appropriate. Phosphorus and potash fertilizer should be applied properly in ②. ③ maintains a good humidity, usually between 6080% and 80%. ④ should have sufficient light time, no less than 8 hours in spring and autumn, increase chlorophyll with light; take shading measures in summer to avoid strong light destroying chlorophyll; and daylighting as much as possible in winter.

2Lighting technology

The leaf shape of Jiapin should be "look at a line horizontally and look at a fan on the side." To achieve this, the main thing is to control the angle of daylighting and not to let the sun "drag leaves". In order to avoid the random tilting of leaves, it is necessary to determine the correct direction of daylighting, that is, the leaves of "Y" plants should be placed vertically with the light. In order to make the leaves facing the sun not upright, it is generally changed once in about ten days, so that the leaves behind the sun "press the neck", now the leaf shape is compact, and the leaf base "press the neck" good shape.

3 blade shaping

Because of the different angles of illumination or the extrusion of new leaves during archery flowering, the leaves of the whole plant are crooked. The deformation caused by daylight can be reshaped at any time. The deformation caused by archery and fruit setting should be reshaped in time after picking arrows from the fruit.

The method of shaping is as follows: ① uses two pieces of thick cardboard, according to the size of the large flower piece, cut into a trapezoidal cover board suitable for the width and width of the blade, cover the blade inside, then swing the blade, straighten the direction to the ideal position, and fix it, so that after a period of time, the blade can be corrected. ② padded the cardboard with a plastic clip, pulled the crooked blade back directly, sandwiched it on a positive blade, and recovered after a period of time. ③ specially makes a comb-shaped leaf fixer with plastic board, which inserts all the leaves on one side into the comb room, so that it can be fully reshaped, and the lower part of the leaf fixer can be made into the soil of the flowerpot, and leaf fixers are installed on both sides of the orchid for long-term shaping.

4 decontamination of blade

Family raised Magnolia can not avoid dust on the fallen leaves, and long-term use of tap water to irrigate or spray the leaves will also deposit a thin layer of scale on the leaves, which is not only harmful to ornamental, but also not conducive to plant photosynthesis. There are many methods of leaf decontamination, and the effect of vinegar water rubbing test is better in practice. Namely: use one or two white vinegar; 15kg tap water, then dip in fine gauze to gently wipe the leaf surface, scale and dust can be eliminated. You can also spray leaves with vinegar water, but we should pay attention to: for adult orchids, especially those who shoot arrows and blossom and set fruit, protect the leaf core and the inside of the false bulb when spraying vinegar water to prevent water decay. Wiping the leaves with diluted "dwarf" water can also keep the leaves bright and durable.

5 the leaf surface is moist

To protect the leaf surface of Magnolia grandiflora from wilting, yellow tip, or even withering, the main method is to improve moisture, especially to pay attention to the wettability of the leaf, to spray water to the leaf every day, preferably a foggy water potential. In the high humid season in summer, it should be sprayed once in the morning and once in the evening every day to reduce the evaporation of water in the leaves. There is no spray in cloudy and rainy weather. The high temperature climate can easily cause the leaves to grow and elongate. Spraying water can reduce the evaporation of water inside the leaves, reduce the leaf temperature, protect the leaves, and achieve the purpose of "squatting leaves" as well.

6-leaf surface diagnosis

The leaf color and growth shape of Cymbidium are the external manifestation of the whole growth state of Cymbidium. Looking at its appearance and knowing its inner situation, we can examine whether the plant has occurred diseases and insect pests through the situation of the leaf surface, and take corresponding measures to rescue it in time. For example: leaves turn yellow, indicating lack of nutrition; leaves drooping, indicating lack of water or too strong sun; leaves become longer and thinner, indicating that the temperature is too high or too much nitrogen fertilizer; leaves have yellow-brown spots and perforations, indicating fertilizer root burning; leaf soft rot, indicating suffering from serious soft rot, should be broken off in time, and properly disposed of; leaf white spots, indicating cotton blowing shell pests, it is necessary to timely remove leaf sheath and leaf back pests.

7 foliar fertilization

Cymbidium grandiflorum can be fertilized on the leaf surface to increase the nutrition of the leaf and the whole plant, both on the front and back of the leaf, such as potassium dihydrogen phosphate, "foliar Chong Shibao", "love more harvest" and so on. Fertilization time is usually at 8~l0 in the morning or l5~l7 in the afternoon. Fertilization concentration is about 1%, not too thick, to prevent ablation of leaves, can be fertilized once in half a month or so. Foliar fertilization should use sprayers and other tools to make fertilizer and water atomized, easy for leaves to absorb, and not easy to make too much liquid fertilizer flow into the false bulb to avoid decay at high temperature.

The above from the leaf lighting technology, leaf shaping, leaf decontamination and other aspects of the big flower gentleman orchid leaf how to care, I hope the above content can be helpful to everyone.

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