How citrus copes with spring drought early

The spring drought will affect the normal growth and development of citrus, so fruit farmers should take precautions and fight drought as soon as possible.

Conditional orchards are irrigated with water diversion. orchards are covered with vegetation; You can pick mature potpourri seeds or buy grass seeds suitable for green manure and sow them; For orchards with shallow roots, the orchard topsoil can also be compacted, and the capillary principle is used to transport the moisture of the deeper soil upwards. Prune as soon as possible, cut off overly dense branches, diseased branches and leaves, and reduce transpiration and water loss.

Pick the fruit as soon as possible, otherwise the water of the fruit will flow back to the tree, which will affect the quality and yield of the next year.

Apply instant organic fertilizer or water fertilizer, apply nitrogen, phosphorus and potassium fertilizer and mainly nitrogen fertilizer to ensure that the tree has sufficient nutrients during the recovery period and spring shoot germination is guaranteed. Spray plant growth regulators and foliar fertilizers. Brassica lactones (such as Yunda-120 and Jinyunda-120) are currently better regulators that can enhance crop drought resistance and promote spring shoot germination, if spring shoot germination is slow during spring drought, you can also use 2000 times of "whole tree fruit" (Yunda Brassica gibberellic acid) to speed up the germination of spring shoots and inflorescences.

1. How to water citrus trees? Many growers know when and when citrus needs to be watered. In fact, citrus trees prefer a warm, humid environment, and the soil should be kept moist when planting citrus trees outdoors, but not waterlogged.

When the weather is hot from summer to early autumn, pay attention to the amount of watering, keep the soil slightly moist and not waterlogged, and water less in winter. Whether you're growing citrus on flat or sloping land, outdoor citrus tree orchards need to be well drained. There was water in the ground, and it was drained in time.

Outdoor citrus trees should be watered before surface symptoms such as wilting occur during a long period of drought and when the leaves are curled. The amount of irrigation at one time is 12 18 tons per mu and 100 150 kg per plant. The irrigation method can be watered, sprinkled or drip irrigated according to the actual situation of each orchard, and the citrus orchard must do a good job of drainage system, and the mountain orchard can build a 1-meter-deep and wide water retention ditch on the slope above the citrus orchard.

Second, citrus watering beam carrying matters 1, budding fruit stage. In the budding stage of citrus, it needs more water. Citrus is mostly planted in the south of China, and the local precipitation can still meet the needs of growth.

However, because the soil is too wet, it is prone to compaction, which is also not good for the growth of roots. If there is water in the ground, the drainage should be done well. In case of high temperature and drought weather, irrigation should be carried out in time to reduce the temperature of the soil.

This phase generally occurs between March and June. 2. Fruit expansion stage. This phase generally occurs between July and September.

The fruit swells quickly, and the leaf photosynthesis is also very strong, and it needs more water. If the field is dry, it is also necessary to water it in time. 3. From the late stage to the pre-maturity period.

This phase generally occurs between October and December. A month before the citrus harvest, it can no longer be watered. When the fruit reaches maturity, it needs to be water-controlled.

Proper water control can improve the sweetness of the fruit. And after harvesting, it is more resistant to storage. Two months before the citrus harvest, the ground should be covered with some breathable mulch, so that the fruit is colored earlier and looks better.

4. Post-harvest management. After the citrus harvest until March, the temperature is relatively low and there is little rain. After the citrus is harvested, the growth of the tree is weaker.

In the event of a continuous dry weather, leaf fall can be very noticeable, which will affect the citrus yield the following year. Generally, after the citrus is harvested, it needs to be fully watered and fertilized. If it has been dry for 20 days, it should be watered again.

Watering citrus planting is generally these four stages. One is the budding stage, the other is the expansion stage, the other is before the ripening period, and the other is the watering after harvest. 5. Citrus watering should be reasonable.

If there is a prolonged drought in the outdoor oak field, it is necessary to water the plants before they wilt. You can't wait until the leaves have already curled up before watering, because by then it's too late. Generally, the watering amount of one acre of land is about 15 tons, and the watering amount of each citrus tree is about 200 catties.

The method of watering is generally adopted.

Summary. Hello, citrus flowering period requires irrigation or not, depending on the situation. Citrus does require a lot of water for flowering and fruit set, and the lack of water during flowering can lead to poor flower quality, uneven flowering, and even flower drop.

However, if there is a long-term rainy weather, coupled with the cold spring, the orchard is waterlogged, and the water is too much, which will promote the growth of new shoots too vigorously, and will also lead to problems such as stunted flower development, serious flower fall, and high incidence of diseases.

Hello, citrus flowering period requires irrigation or not, depending on the situation. Citrus does require a lot of water for flowering and fruit set, and the lack of water during flowering can lead to poor flower quality, uneven flowering, and even flower drop. However, if there is a long-term rainy weather, coupled with the cold spring, the orchard is waterlogged, and the water is too much, which will promote the growth of new shoots too vigorously, and will also lead to problems such as stunted flower development, serious flower fall, and high incidence of diseases.

All fruit trees need sufficient water and nutrients for flowering and fruit set, if we do not have pre-watering water and pre-flowering fertilizer before flowering, and when flowering, it is in the spring dry season when the temperature is gradually warming and there is less rain, coupled with the dry climate outside, strong wind, large evaporation, air temperature and soil temperature are gradually rising, the activity of the root system is also enhanced, and the water demand will also be greater. But if irrigation is carried out at this time, it will ostensibly send "timely rain" to the fruit tree, but in fact it will increase its water shortage. Because after a sudden large amount of watering, the ground temperature will drop sharply, and the vitality of the root system will also be reduced, thus reducing the water absorption capacity of the root system; After a large amount of irrigation, the air permeability of the soil becomes worse and the viscosity increases, which increases the resistance of water through the root duct, which leads to the decrease of tree water and aggravates the water shortage phenomenon in the process of flowering and fruit setting, which will cause a large number of flower drops.

Second, after irrigation, due to the reduction of the absorption capacity of the root system, the nutrients dissolved in the water in the soil can not be absorbed in time, so that the nutrients that are transported to the tree to supply flowering and fruit set, leaf and leaf shoot can not meet the needs, due to the lack of water and nutrients, it will inevitably exacerbate the contradiction between vegetative growth and reproductive growth, due to the flowering and fruit setting and leaf development and branch competition for nutrients, so that a large number of flowers will fall off. 3. After watering for 3 5 days, the root system slowly rises with the ground temperature, the activity ability and absorption capacity of the root system are quickly restored, and the rapid enhancement is increased, and the water delivered to the flowers is suddenly excessive, and the flowers can not bear it, which promotes the flower peduncle to produce delamination and a large number of flower drops.

Dear, if there is a drought, watering must be in moderation, do not water too much.

For the question "How to water citrus adult trees in drought?" "This question, at a glance, drought watering is not over, but if agricultural planting and production are so simple, farmers will not be so tired. When watering adult citrus trees to alleviate drought, it is necessary to pay attention to the method, and the method of watering is different when drought occurs at different times in the citrus growth cycle.

First, citrus adult tree germination to fruit in the early stage of drought citrus is widely cultivated in southern China, citrus germination to the early stage of fruit is generally in March to June every year, this period of rainfall in the south is sufficient, most of the citrus producing areas will not encounter drought in this time period, but the precipitation is less that year, the park is dry, this time period citrus has certain requirements for water, if the drought situation before flowering is serious, irrigation can be carried out thoroughly, if it is with fertilization, it can not be watered, Otherwise, the centralized supply of water and fertilizer will easily cause the plant to grow; If the flowering period is dry, it is necessary to water with small water frequently, to avoid large fluctuations in soil water conditions, flower and fruit drops, and drip irrigation is best used if conditions permit. You can tell whether the irrigation is reasonable or not by the soil condition of the soil layer at 20 cm in the orchard, and the degree to which the soil is loosened and loosened by holding the clump.

2. Drought in the fruit stage of citrus adult trees.

Citrus fruit period of the demand for water is larger, especially in the middle and late stages of fruit growth is prone to water shortage and drought, and at this time the temperature is higher, irrigation should pay attention to small water watering, to avoid soil water fluctuations too large caused by cracking or fruit dropping, watering is best in the morning, if long-term drought in addition to watering, it is best to spray water in the orchard before 10 am or after 4 pm, to alleviate the drought. In addition, it is not easy to water in the first 20-30 days of citrus ripening, otherwise it will lower the quality of citrus or cause fruit drop and cracking, but excessive drought will also affect citrus yield, so it is best to prepare in advance for drought-prone production areas during citrus ripening period, such as tree tray mulching green manure, soil mulching and other water retention measures.

3. Drought during the overwintering period of citrus adult trees.

Citrus adult trees overwintering to encounter drought has a great impact on citrus yield in the coming year, so after harvesting to flood irrigation before winter water one is to prevent cold, the other is to protect soil moisture to prevent the occurrence of drought, if the winter drought time is longer, can be irrigated once at an interval of 15-20 days, it should be noted that irrigation must be carried out when the temperature is above 8.

Adult trees are dry because their roots can't absorb water, so you can water them more often.

Water the soil of the plant with river water, and finally spray the branches, leaves, and branches of the plant with a spray can. Watering is best done at night so that the plants absorb better.

If the flowering period is dry, it is necessary to water with small water frequently, to avoid large fluctuations in soil water conditions, flower and fruit drops, and drip irrigation is best used if conditions permit.