Can bonsai be fertilized in autumn?

Autumn and September are the seasons when everything begins to wither. The general characteristics of autumn growth of trees are lignification of branches in spring and summer, and a new root-leaf system has been formed, which increases the assimilation area of trees and accumulates nutrients for the differentiation of autumn shoots and flower buds. The autumn shoot growth and flower bud differentiation of evergreen trees are carried out at the same time, and the competition for nutrient distribution is fierce. Vegetative growth is superior to reproductive growth, and reproductive growth consumes more than vegetative growth and can inhibit each other.

If the nutrient accumulation in autumn is not sufficient, the autumn shoots can't be lignified, and there will be few flowers and small fruits in the coming year. New and old branches without lignification have to undergo the test of severe winter, and the test of plants in severe winter is more cruel than that in hot summer. Therefore, it is necessary to create conditions for bonsai trees to overwinter in autumn, promote their germination in early autumn, prolong their growth time, accelerate the growth of trees and fully accumulate nutrients, so as to facilitate their smooth overwintering. In autumn, the stumps germinate late, the growth time is shortened, the nutrient accumulation is insufficient, the twigs are not lignified, and the old and weak branches and inner branches do not accumulate enough nutrients, so the branches are easy to atrophy and die in winter. (This is especially true for newly planted raw bonsai)

Therefore, autumn bonsai management is an important period, and it is necessary to strengthen soil, water, fertilizer and light in a targeted manner. Evergreen trees should also be topped to lignify autumn branches as soon as possible, creating conditions for wintering. Conifers and deciduous trees germinate in autumn, but do not germinate. Therefore, it is necessary to promote its dormancy in late autumn to avoid wasting nutrients and affecting its smooth wintering.

Key points of maintenance and management of autumn bonsai;

1, lighting: bonsai plants and trees should strengthen the lighting in autumn, and put the pots in a sunny place to let the sun shine, which is beneficial for trees to accumulate nutrients, take root and grow leaves, blossom and bear fruit.

2. Pot soil: The soil should be wet and dry alternately and thoroughly poured. Usually, the soil is often loosened to allow air to penetrate and increase the air content in the soil. Pot soil is dry and wet alternately. When it is dry, there is little water in the soil, and air can penetrate into the cracks filled with water, so the roots can breathe smoothly. Proper drying can promote the growth of roots, which is beneficial to the development of autumn shoots and the formation of leaflets.

3. Fertilization: Fertilization should be timely and appropriate, and it should be lightly applied many times in early autumn. Pot friends can use jade fertilizer conveniently, hygienically, without any unpleasant smell and with sufficient fertility. ) Fertilization should be controlled in the Mid-Autumn Festival, so as not to promote late autumn shoots. In this way, the use of fertilizer can promote the early development of autumn shoots, so that vegetative growth and reproductive growth can be carried out at the same time, and the next year will be full of leafy flowers and fruits. If the trees are in good condition and rich in autumn, the flowers in spring may bloom in autumn. Persimmons and arhat pines in my family have appeared in spring and autumn many times. Early application of autumn fertilizer is widely used in fruit tree production, but the management of stumps is more detailed, and autumn fertilizer should be applied early.

How to fertilize bonsai? ?

Generally, thin fertilizers are often applied:

(1) Pomegranate, Begonia, Wisteria, Pyracantha fortunei, Nandina domestica and other bonsai should be applied with more phosphorus and potassium fertilizer.

(2) The foliage bonsai such as five needles pine, boxwood pile and ivy should be dominated by nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer.

(3) Pine and cypress bonsai can be diluted with self-made bean cake decomposition water, 1 year, 3 times.

(4) Fertilization can be carried out in the growing season of spring, summer and autumn, and the winter dormancy period stops.

(5) The tree just planted in the pot has not yet grown new roots and cannot be fertilized.

(6) Liquid fertilizer should not be too thick, and it must be diluted before use, otherwise it will cause fertilizer damage.

(7) Organic fertilizer and cake fertilizer must be fully decomposed before they can be used, otherwise they will ferment in the pot soil to produce high temperature and burn the roots.

(8) Do not spray liquid fertilizer water on the leaves as topdressing.

(9) Fertilization is good in sunny days, but not in rainy days.