Sugar orange planting technology: how to apply sugar orange strong fruit fertilizer?

Sand sugar orange strong fruit fertilizer how to apply? Please introduce the method of applying autumn shoot fertilizer to tangerine when applying strong fruit fertilizer. the methods are as follows: first, at the stage from the release of autumn shoots to the full maturity of autumn shoots, fruit growth and development, it is necessary to provide certain sustained nutrients and certain quick-acting nutrients to promote the timely extraction of autumn shoots and the need for their growth. Therefore, this fertilization has certain purposeful requirements in terms of time and fertilizer collocation. The matching of fertilizers should be based on tree age, tree potential, hanging fruit amount, organic fertilizer and quick-acting fertilizer combined with nitrogen, phosphorus and potassium. An appropriate amount of organic fertilizer was used to continuously support the need for fruit development and expansion, and quick-acting fertilizer was used to promote the extraction and growth of autumn shoots as scheduled. If you take the planned hanging fruit yield of 10kg plant and the plant in the middle and upper tree potential as an example, the combination and reference amount of fertilizer are as follows: 0.5kg of dried peanut bran or 2.0kg of dried chicken manure (the above-mentioned measured organic fertilizer must be fully ripened before it can be applied), urea 0.1kg, potassium sulfate 0.1kg, calcium superphosphate 0.3kg or 17:17:17 compound fertilizer 0.25kg. However, it should be noted that the compound fertilizer should be chlorine-free as far as possible, which is due to the weak chlorine tolerance of citrus fruit trees in their infancy. The fertilization position should be about 8 cm deep ring-shaped ditch under the crown dripping line, sprinkle the mature organic fertilizer into water and fertilizer, then sprinkle the chemical fertilizer and then cover the soil. The period of fertilization should be about 15 days before shooting. After the autumn shoots are ripe and full, whether to increase the application of phosphorus and potassium fertilizer is properly considered according to the tree potential and leaf color. This fertilization should not be applied excessive nitrogen fertilizer, so as to avoid excessive nitrogen retention in the soil, when encountered warm winter, Rain Water more winter, easy to promote winter shoots. Second, the question of whether 500~750ppm paclobutrazol can be sprayed to inhibit the emergence of winter shoots when the autumn shoots are not fully ripe, depending on the weather and the growth of autumn shoots. For example, when the autumn shoot grows to the later stage, because there are more Rain Water, the temperature is warmer, and the autumn shoot has the trend of overgrowing, we can spray paclobutrazol when it is not full, and add foliar fertilizer with high phosphorus and potassium content, such as high phosphorus and potassium foliar fertilizer, in order to promote the autumn shoot to mature, enrich and thicken as soon as possible. Otherwise, it is appropriate to spray paclobutrazol after the autumn shoots are fully mature. Under normal circumstances, it is impossible to sprout new buds by spraying paclobutrazol after autumn shoots are ripe. This is because there is a growth and decline relationship between shoot and root. That is, when the shoot is mature, the shoot growth stops temporarily, and the root system begins to grow at this time. When the roots grow new roots and absorb fertilizer and water, the shoots begin to grow again. But at this time, it has entered a colder weather, and Rain Water is generally less in autumn, and paclobutrazol was sprayed to the crown after the new shoots were ripe, which also inhibited the growth of roots to a certain extent. Under the combined action of drought, cold and drug inhibition, the general root system temporarily stops growing, so the plant enters the dormancy stage, and the plant changes from the exuberant vegetative growth stage to the reproductive growth stage, that is, flower bud differentiation begins. However, when the temperature is still high and Rain Water is more, excessive nitrogen fertilizer is applied in the middle and early stage of the soil, and the tree potential of the plant is too strong, which may lead to the root system being difficult to be restrained and continue to grow, and also promote the germination of new shoots. this is the so-called late autumn or winter shoot emergence. In the above cases, it is appropriate to take measures with higher control intensity, that is, to take the measure of big branch or main rod ring cutting. Generally, in view of the above situation, ring cutting can be carried out from late November to mid-December. As it is difficult to accurately predict the degree of cold and drought in winter, it is not suitable for plants with general tree potential to be ring-cut after their autumn shoots are ripe and full, but should be sprayed with paclobutrazol twice with mild control measures. Otherwise, once you encounter excessive drought and cold winter, the leaves of the plant will fall seriously due to excessive control, affecting the accumulation of photosynthetic carbohydrates. Of course, when the fertilizer and water management is good, and the plant growth is particularly exuberant, after the autumn shoot is ripe, it is restrained by spraying paclobutrazol. From mid-late November to early December, the color of the leaves is always dark green, and there is no fade and fade phenomenon. Ring cutting inhibition can be considered. However, the time of ring cutting should not be too late, otherwise it will affect the extraction of spring shoots and buds as scheduled. Click to get more sugar orange planting techniques click to get more fruit planting techniques