How to apply organic fertilizer to citrus, how to apply compound fertilizer to citrus trees

Fertilization instructions: Before the application of organic fertilizer, it should generally be fully decomposed, and attention should be paid to maintaining nutrients. Direct application of unrotted organic fertilizer may cause infectious bacteria, fever and root damage, etc., and the application of cellulose organic fertilizer to the soil will also consume the available nitrogen in the soil.

The use of unrotted organic fertilizer in planting holes will cause the soil to sink and inhibit the development of young roots. However, the decomposition of organic fertilizer should be moderate, and the pile should be sealed with thin mud or covered with sheds when composting, so as to avoid the loss of volatilization after the nitrogen in the fertilizer is decomposed into ammonia. When the cake fertilizer is applied, it must be crushed first, and it is best to pour thin human feces and urine, mix evenly and then pile up for 5-10 days.

After fertilization, the soil must be covered carefully and in a timely manner, especially urea, ammonia and other chemical fertilizers, which will cause the volatile loss of nutrients.

When applying chemical fertilizers, the principle of small amounts and many times should be followed, and when the soil moisture is not large, it should be mixed with water or dissolved into human feces and urine as much as possible. After being applied to the soil, it must be mixed with the soil to avoid agglomeration or application in one place, resulting in excessive local concentration and fertilizer damage.

Fish manure and compost often contain toxic substances or high salt content, so they should be diluted before use, composted and used.

When urea is used as extra-root top dressing, attention should be paid to prevent biuret poisoning. Generally speaking, the concentration of biuret in urea is low, and in the following, citrus application of urea as root topdressing, as long as the method is appropriate, will not produce poisoning.

When applying ammonia, it must be applied after mixing with water, but it should be noted that concentrated ammonia is highly volatile, and it should be kept away from the tree when mixing water, otherwise it will smoke the leaves.

Fertilization methods: Citrus orchard fertilization methods can be divided into two categories: one is soil fertilization, in which plant roots directly absorb the fertilizer applied from the soil; The other type is extra-root topdressing, which includes foliar spraying, branch injection and so on. The most commonly used in production are soil and foliar sprays.

Is it a few plants or woodland or mountain, is it sprinkled per mu or applied in roots or crowns?

Summary. Hello. 1. First of all, the organic fertilizer applied by citrus must be fully decomposed, so as to facilitate the absorption of plants.

How to apply organic fertilizer to citrus?

Hello. 1. First of all, the organic fertilizer applied by citrus must be fully decomposed, so as to facilitate the absorption of plants.

2. Fertilize according to the growth season of citrus, and just germinate new leaves in early spring, at this time, more nitrogen fertilizer should be applied, and more potassium fertilizer and phosphorus fertilizer should be applied when flowering and fruiting.

3. There are several ways of fertilization, the first is to open a ditch, open a long ditch next to the plant, and then dilute the organic fertilizer and pour it into it and then cover it with soil, this fertilization method is suitable for large-scale planting orchards.

4. The second is to open holes and fertilize, open some burrows 40 to 50 cm deep around the citrus plants, and then apply organic fertilizer into them, and then fill them with soil.

5. The third is ring fertilization, which is about 50 cm around the plant to open a ring-shaped ditch, and then pour organic fertilizer into it and cover it with soil. This method is suitable for individual citrus.

6. The application of organic fertilizer must be diluted before it can be watered, and the time of applying organic fertilizer must be sunny in the evening, which is conducive to the absorption of plants.

Many people choose to use compound fertilizers when maintaining citrus trees. So, how do citrus trees use compound fertilizers? What are the precautions? The details are as follows:

Methods and precautions for using compound fertilizer for citrus trees.

When planting citrus trees, compound fertilizers are chosen to apply them in order to fertilize them in a balanced way. Compound fertilizers are not only rich in nutrients, but also have a low cost**, which is very suitable for citrus trees.

When applying compound fertilizer to citrus trees, the fertilizer and dust deficiency material selection of young trees and adult trees is different, if Zen Brother Tan is a young tree using compound fertilizer, it is recommended to choose a high-nitrogen compound fertilizer. For mature citrus trees, high potassium compound fertilizer can be applied during the expansion period, and the cost performance of compound fertilizer is higher, but when using, it is recommended to use the method of buried application, not sprinkling, so as not to affect the fertilizer effect.

When using compound fertilizer for citrus trees, it is best to water it properly after fertilization, which will help the compound melt better. In addition, when maintaining citrus trees, it is necessary to ensure that the soil is moist.

Comments: Citrus trees can use compound fertilizer in the planting process, but it should be noted that when using compound fertilizer, try to bury it, do not sprinkle, so as not to cause compound fertilizer evaporation in the sun and affect the utilization rate of fertilizer. After applying compound fertilizer to it, it should be properly watered, and the water will accelerate the melting of compound fertilizer, which is more conducive to fertilizer absorption.

<> is conducive to the development of citrus industrialization: the use of organic fertilizer can prolong the life of fruit trees, improve soil fertility and fruit quality, and achieve stable yield and harvest, which is of great significance for the sustainable development of the citrus industry.

Maintain the temperature and humidity of the soil: The application of organic rangjang fertilizer can maintain a good temperature and humidity of the soil, and can also enhance air permeability, which is conducive to the function of citrus roots.

Avoid citrus deficiency: organic matter is rich in a large number of nutrients, and citrus will not be deficient after application.

Improves the quality of citrus: The use of organic fertilizers improves the taste and flavor of the fruit.

First, it is conducive to the development of citrus industrialization

1. Although chemical fertilizer can promote the growth of citrus, too much application will lead to a decline in soil fertility and premature aging of fruit trees, which will greatly reduce the quality of fruits.

2. In order to change this situation, the application of well-rotted organic fertilizer should be increased during the planting period, and the amount of chemical fertilizer should be reduced, and the application of organic fertilizer can improve soil fertility, improve the environment, prolong the life of fruit trees, improve fruit quality, and help achieve the goal of stable yield and harvest, which is of great significance for the sustainable development of the citrus industry.

2. Maintain the temperature and humidity of the soil

1. Citrus is a plant that likes warm and humid climate, and in the process of citrus cultivation, too low soil temperature will affect the growth of citrus.

2. The root system is an important part of citrus, it has the effect of stabilizing the tree body and absorbing nutrients, and the application of organic fertilizer can increase the air permeability of the soil and keep the soil at a good temperature and humidity, which is very beneficial to the function of citrus roots.

3. Avoid citrus deficiency

1. In citrus orchards, continuous planting of green manure (2-3 years) can increase the organic matter content in the soil, reduce the bulk density of the soil by about cubic centimeters, and increase the porosity of the soil.

2. In citrus cultivation, the long-term application of organic fertilizer can further improve the nutrient content of the soil, and because the organic matter is rich in a large number of nutrients, citrus will not appear to be missing individual elements, but the application of chemical fertilizer can not achieve this effect.

Fourth, improve the quality of citrus

1. During the cultivation of citrus, the application of organic fertilizer can increase the content of soluble substances in the fruit, which is conducive to comprehensively improving the quality of citrus.

2. The use of conventional fertilization and the application of organic fertilizer in the ditch can make the content of soluble substances in citrus exceed and the solid-acid ratio will also decrease, so that the taste and flavor of the fruit are better.

Deqing County, Guangdong Province.

Fertilizer and water management for citrus cultivation.

Citrus requires irrigation during the dry months, so it is essential to irrigate when the winter is dry and the temperature is above 13 degrees Celsius.

In addition, dehydration is dangerous, it allows fruit moisture to flow to the leaves and causes fruit wilting. In the past, irrigation was mainly done by furrow irrigation or sprinkler irrigation in the upper part of the canopy, but sprinkler irrigation has the risk of salinization, and furrow irrigation can cause a decrease in soil permeability.

Drip irrigation and micro-sprinkler irrigation under the canopy are now trending towards strip irrigation, with part of the soil surface kept dry. Orchards that have not fully applied phosphorus and potassium fertilizers before planting should increase the application of phosphorus and potassium fertilizers year by year; Fertile leaf macro-element water-soluble fertilizer can be used.

1 month after the young tree is planted, the new roots begin to move, and the water-soluble fertilizer of fertile leaves can be applied, and the amount of fertilizer should be less than more, and it should be light but not thick, so as not to hurt the roots. Before each new shoot pumping and growth period, apply 1 2 times of water-soluble fertilizer with large elements of fertile leaves, and strive to pump 3 4 times of shoot in 1 year, that is, from the end of February to the beginning of March, spring shoot fertilizer, summer shoot fertilizer in mid and late May, early autumn tip fertilizer in early and mid-July, and winter fertilizer in late November.

In areas prone to frost damage, fertilization should be stopped in August and October to prevent the extraction of late autumn and winter shoots to avoid the consumption of nutrients and cause frost damage.

In the second year after planting, the amount of fertilization should be gradually increased, combined with the application of water-soluble fertilizer with a large number of elements in fertile leaves, the amount of phosphorus and potassium fertilizer should be increased, and an appropriate amount of lime should be added to the acidic soil to cultivate dense root groups and robust autumn shoots, laying the foundation for the third year's fruit.

If citrus wants to grow well, it must be fertilized all year round, with basal fertilizer in autumn, winter fertilizer, spring fertilizer in spring, and normal top dressing in summer.

1 2-year-old young trees, focusing on cultivating each branch tip, fertilization to the principle of thin fertilizer from violet, and more application before and after the shoots. One month after planting, the new roots begin to move, and thin water and fertilizer can be applied. Apply water-soluble fertilizer once before each new shoot germination 10-15 days before the new shoot germination and during the new shoot stop growth period, and strive to extract 3 or 4 strong shoots a year.

First-fruiting trees (3-4 years old) are repeated in winter, before spring, and before autumn. The principle of not doing it before the summer. That is, from December to January of the following year, fertilizer is applied after fruit picking, which is needed for the spring shoot period, and water-soluble fertilizer is the main one.

In February, the strong trees before the spring shoots were not applied, and the weak trees were applied with water-soluble fertilizer once to promote the growth of spring shoots. In May and June, no fertilizer is generally applied to control the growth of summer shoots. Re-apply before autumn, mainly with fast-acting water and fertilizer, the purpose is to promote the autumn shoots, lay a good foundation for the second year to increase production, 8-10 months can be applied 1-2 times of water-soluble fertilizer to strengthen shoots and fruits.

Middle-aged fruiting trees are fertilized 4-5 times a year, mainly before and after fruit picking, before spring shoots, and before autumn shoots. Late-maturing seeds, medium-maturing varieties with more fruits, and weaker fruiting trees should be applied before fruit picking; Early-maturing seeds and medium-ripening seeds with little fruiting amount are applied after fruit picking. It is best to apply ponkan orange before fruit picking, and orange orchards with less rain and no irrigation conditions should also be applied early, mainly with water-soluble fertilizer in Ribery Yanwo, so as to restore the tree potential and protect the leaves for winter.

Apply fast-acting water fertilizer 15 days before spring shoot germination to promote the good growth of spring shoots, and the fertilizer can also be applied twice before and after shoots. Before and after the summer heat, that is, about 15 days before the budding of autumn shoots, water-soluble fertilizer was applied once to promote the growth of autumn shoots and healthy oysters. Around October, the fruit enters the peak period of enlargement, and the tree body begins to enter the physiological differentiation period of flower buds, and a high-quality fertilizer is applied to facilitate the differentiation of strong fruits and flower buds.

In addition to the above several fertilizations, in the full flowering period or flowering period to see the age, tree potential, flowering amount and leaf color, etc., appropriate application of flowering fertilizer.

The management of citrus fruit tree production, especially in the management of fertilizer, is more prominent, which is mainly manifested in the neglect of organic fertilizer application and soil improvement and fertilization. The role of organic fertilizers:

1. Nutritional effect. Organic fertilizer is rich in various nutrients needed for citrus growth, which can continuously supply the growth and fruiting needs. Organic matter decomposes in the soil to produce carbon dioxide, which can be used as a raw material for photosynthesis and is conducive to increasing yield.

Supplying nutrients is the main role of organic fertilizer. 2. Improve the soil. Organic fertilizer can increase the content of soil organic matter, update the composition of soil humus, improve soil physical properties, increase soil fertilizer and water retention capacity, and fertilize soil.

Soil organic matter is an important indicator of soil fertility and the material basis for the formation of soil environment, and soil organic matter is composed of undecomposed and semi-decomposed organic matter residues and humus in the soil. Organic fertilizer can form aggregates, and its density is generally smaller than that of soil, and the application of potato machine fertilizer to the soil can reduce the bulk density of the soil, improve the soil aeration, and easily absorb heat and moisturize. The role of chemical fertilizers:

1. Ingredient list.

First, the content is high. Contains one or several kinds of nutrients necessary for the growth and development of citrus. When applied properly, the effect of increasing yield is obvious.

2. It is easy to be absorbed by citrus. Most of them are water-soluble or weakly acid-soluble compounds, which are fast-acting to fruit trees and can be directly absorbed by roots or leaves. Compared with before the 90s of the 20th century, the application of organic fertilizer in citrus orchards has been greatly reduced, and the use of gaps between rows to plant green manure in young orchards is also becoming less and less, resulting in a serious lack of organic matter in citrus soil, and the organic matter content in some production areas is below, which is far from meeting the demand for organic matter for the normal growth of citrus plants.

1. Annular furrow fertilization: dig a annular deep furrow under the drip line of the crown of Qi tree, cut off the roots and fertilize them, and promote the growth of new roots. When applying chemical fertilizers, pay attention to mixing with the soil to avoid burning the roots; Orchards on hillsides can be fertilized in semi-circular furrows.

2. Hole expansion and fertilization: citrus seedlings grow vigorously, and with the expansion of the crown and the growth of the root system, it is necessary to continuously expand the hole. The specific method is to dig a ring ditch about a meter deep and wide outside the planting hole, and apply chemical fertilizer combined with organic fertilizer or green manure to make the root system have a loose soil environment.

3. Hole application: In order to avoid too much damage to the citrus root system, dig 4 6 fertilization holes about 1 meter in diameter and about 1 meter deep around the drip line of the canopy, and apply fertilizer in the hole. The opening position should be rotated and staggered every year to facilitate the growth of citrus.

After the fertilizer is applied to the soil, it should be mixed well with the soil.