What should be paid attention to when fertilizing kiwifruit saplings?

Basal fertilizer is generally advocated to apply basal fertilizer in autumn, and it is more advantageous to apply it early after fruit picking. According to the different maturity periods of each variety, the fertilization period is 10 to 11 months, during which a large amount of nutrients synthesized by the leaves flow back to the root system, which promotes the occurrence of a large number of roots and forms another growth peak. At the same time, because the leaves lose the water regulation effect of the fruit after harvesting, a temporary decline in function often occurs, and it is necessary to restore the function of fat sleep.

Early application of basal fertilizer supplemented by appropriate irrigation plays an important role in accelerating the recovery and maintenance of leaf function, delaying leaf senescence, increasing leaf lifespan, and maintaining strong photosynthetic production capacity. Therefore, the autumn application of basal fertilizer can improve the level of stored nutrients in the tree, which is conducive to the differentiation of flower buds before and after the fall of leaves and before flowering in the following year, and is conducive to the growth of buds and new shoots, flowering, pollination and fruit set.

The application of basal fertilizer should be combined with soil improvement and soil fertility. More organic fertilizer should be applied, such as manure, compost, cake fertilizer, human manure, etc., and a certain amount of available nitrogen fertilizer should be added at the same time, and phosphorus and potassium fertilizer can be applied according to the soil nutrients of the orchard. The amount of basal fertilizer should account for 60% of the annual fertilizer application, and it can be appropriately reduced if applied in winter and spring.

Fertilization: After slowing the seedlings (after May), combined with irrigation, apply about two urea per seedling, or apply a little urea with clear manure water. Note:

Red heart kiwifruit is usually best used farmhouse fertilizer, which is also known as natural fertilizer. There is more stuffy organic matter, the fertilizer effect is stable and long-lasting, and the long-term medium bend application can improve the soil. Red heart kiwi fruit is an edible and medicinal fruit, containing 100-420 mg of vitamin C per 100 grams of fresh pulp, 5-10 times higher than citrus, 11-13 times higher than lemons, and 20-80 times higher than apples.

The flesh of the red heart kiwifruit is delicate, the aroma is rich, the taste is sweet and refreshing, the acidity is very low, and the nutrition is rich.

Kiwifruit seedlings can be applied to farm fertilizer or 1% urea in the water, and superphosphate can be added in an appropriate amount when fertilizing in July to promote the aging of seedling branches and full bud eyes. For the fertilization of kiwifruit, the following points should also be noted: First, basal fertilizer:

Immediately after the fruit is picked from late October to late November, a 35 cm deep and 30 cm wide annular ditch or trench along the row of the plant is dug around the tree tray, and the rotten organic fertilizer is applied, oil cake and phosphate fertilizer are added, and then the soil is irrigated with water. 1500-3000 kg of slag fertilizer, 150-200 kg of oil cake and 100-150 kg of phosphate fertilizer per mu. The second is top dressing before germination:

From late February to early March, apply fast-acting fertilizer based on nitrogen fertilizer, combined with irrigation, and apply 6-10 kg of urea per mu. The third is fertilization during the fruit expansion period: one week after flowering (late May to mid-June), apply 100-150 grams of compound fertilizer per plant, and 6-10 kg of human and animal manure water.

Fourth, fertilization in the late stage of fruit growth: from late July to early August, apply fast-acting phosphorus and potassium-based fertilizers, and control the application of nitrogen fertilizers to avoid the branches growing slightly, and apply 200-250 grams of phosphorus and potassium fertilizers per plant. Fifth, topdressing outside the roots:

At the full flowering stage and fruit setting stage, top dressing is carried out with potassium dihydrogen phosphate or urea solution.

Summary. Generally, more organic fertilizer should be applied to kiwifruit bottom fertilizer, which can increase the content of soil organic matter and improve the soil. Secondly, calcium, magnesium, boron and zinc fertilizer can be added to supplement calcium, promote the development of the root system, which is conducive to the development of the root system in the spring of the next year, and the magnesium supplement can improve photosynthesis and have a good leaf preservation effect; Boron and zinc are reproductive elements, and boron and zinc supplementation can promote flower bud differentiation, promote flower multi-flowering, reduce deformed flowers and deformed fruits, and improve fruit setting rate. Micro-supplement is calcium, magnesium, boron, zinc granules, fertilizer effect is released slowly, the effect is long-lasting, and organic fertilizer is applied together to make up for the lack of nutrients in large fertilizer.

What fertilizer to apply when planting kiwifruit seedlings.

Organic fertilizer. Generally, more organic fertilizer should be applied to kiwifruit bottom fertilizer, which can increase the content of soil organic matter and improve the soil. Secondly, calcium, magnesium, boron and zinc fertilizer can be added to supplement calcium, promote the development of the root system, which is conducive to the development of the root system in the spring of the next year, and the magnesium supplement can improve photosynthesis and have a good leaf preservation effect; Boron and zinc are reproductive elements, and boron and zinc supplementation can promote flower bud differentiation, promote flower multi-flowering, reduce deformed flowers and deformed fruits, and improve fruit setting rate. Micro-supplement is calcium, magnesium, boron, zinc granules, fertilizer effect is released slowly, the effect is long-lasting, and organic fertilizer is applied together to make up for the lack of nutrients in large fertilizer.

Summary. Kiwifruit seedlings to grow, fertilization can be organic fertilizer and inorganic fertilizer and micro fertilizer combined with each other, first say the use of rotten organic fertilizer, rotten organic fertilizer contains a variety of organic matter and nutrients, can be a good improvement of the soil, increase the fertility of the soil, and kiwifruit can also be well absorbed, inorganic fertilizer effect is relatively fast, especially the phosphorus and potassium elements in it can promote the growth of the root system, is conducive to the robustness of the plant, it can be said that the two can cooperate with each other to play a good role in fertilizer, to achieve the best effect.

Kiwifruit seedlings to grow, fertilization can be organic fertilizer and inorganic fertilizer and micro fertilizer combined with each other, first of all, the use of rotten organic fertilizer, rotten organic fertilizer contains a variety of organic matter and nutrients, can be a good improvement such as Hu Liang soil, increase the fertility of the soil, and kiwifruit can also be well absorbed, inorganic fertilizer fertilizer effect is relatively fast, especially the phosphorus and potassium elements in it can suppress the root growth, is conducive to the robustness of the plant, it can be said that the two can cooperate with each other to play a good role in the fertilizer oak material, Achieve the best results.

Plant seedlings based fertilizer specifically say the name.

How much organic fertilizer and inorganic fertilizer should be applied to the bottom fertilizer of a seedling?

400 500 kg per mu, nitrogen, phosphorus and potassium (15 15 15) Lianghe potassium sulfate or 40 50 kg of pure sulfur-based compound fertilizer of Xiangling Pai, 80 100 kg of superphosphate or calcium, magnesium and phosphorus fertilizer, 25 30 kg of potassium sulfate

For the kiwifruit that has already borne fruit, the summer is the period when the fruit has begun to expand, and the amount of water and fertilizer required accounts for 75% of the total amount of chemical fertilizer in the year, of which all fertilizers with high potassium content are also applied in summer. Organic fertilizers such as cake fertilizer are the mainstay, and some fast-acting fertilizers such as superphosphate and ammonium nitrate are mixed. Generally, 4-year-old trees can apply 20-30 kg of organic fertilizer, plus kg of superphosphate and ammonium nitrate.

It can be used to spread the whole garden or apply the furrow. Irrigate 1 time in time after application.

<> expand the canopy as soon as possible, take shape as soon as possible, and bear fruit as soon as possible. Top dressing is mainly fast-acting nitrogen fertilizer. Top application 2-3 times a year.

Before the first germination, 50 grams of urea were applied to the plant, and 50 grams of urea were applied to the new shoot growth stage. Later, fertilizer was applied according to the growth of kiwifruit trees. Do it once a month to prevent the fertilizer from hurting the roots.

Puffed fruit fertilizer generally requires the application of compound fertilizer with high potassium content of 10-10-25 nitrogen, phosphorus and potassium content, and can also be irrigated according to the tree potential and fruit bearing amount of kiwifruit, combined with high potassium content fertilization.

A certain amount of organic fertilizer is buried every year to ensure sufficient fertilizer source. Kiwifruit should avoid chloride, when the concentration of chloride ions in the soil reaches 700 mg kg, it will be toxic to the plant, so try to avoid chlorine & 40; e.g. potassium chloride & 41; Application of fertilizers. Before flowering, apply flower-promoting fertilizer, spraying, kiwifruit special foliar fertilizer + compound boron, foliar fertilizer 2x30 box + compound boron 1000 1500 times diluted, 2 3 times, with an interval of about 7 days, which plays a role in protecting flowers and fruits, preventing diseases, and identifying the basis for crop income.

Moreover, sprouts, shoots and other nutrients that have been consumed by the tree in the previous year need to be replenished. At this time, fertilization is conducive to budding and flowering, and promoting the growth of new shoots. Spring fertilizer is carried out just when it is about to germinate, mainly with fast-acting fertilizer, taking plant application, and then irrigating once.

Increases nutrient delivery. Prevents flower drop, fruit drop, cracking, jelly and deformed fruit so that the fruit is beautiful in color, shape and taste. Each plant of a 4-year-old tree can be applied - kg of potassium phosphate monobasic.

Water the entire garden once after applying.

Chemical fertilizers that are richer in nutrients should be used, as only then can the growth of kiwifruit trees be better promoted.

The best way is to use organic fertilizer, according to the top application of organic fertilizer every two months, the growth of fruit trees can be significantly improved.

The fertilizer should be mainly used to quickly supplement and absorb the flushing fertilizer, and the flushing fertilizer with high nitrogen content can be mixed with water for irrigation. Generally, 7-10 days to flush once, 2-3 times in a row can play a role in restoring the tree's potential, after the last flush fertilization, with a small amount of high nitrogen content compound fertilizer for sprinkling, to improve the supply of fertilizer validity period, to ensure that the growth period of kiwifruit fruit trees will not appear defertilizing.