When to fertilize the yellow crown pear The fertilization method of the yellow crown pear

Fertilization method of Huangguan pear.

1. Fertilizer amount.

Generally speaking, the production of 100 kg of pear fruit requires pure nitrogen kilograms, pure phosphorus kilograms, pure potassium kilograms, and the ratio of nitrogen, phosphorus and potassium is: 1, such as the yield per mu.

2500 kg of pears are calculated, then 12 kg of nitrogen, phosphorus and potassium are required per mu. In actual production, the amount of fertilizer can be calculated according to the content of the active ingredients of various fertilizers.

2. Fertilization time.

1) Apply within 7-10 days after harvest, in order to facilitate the recovery of tree potential, and promote photosynthesis, increase nutrients and the occurrence of autumn roots, etc., mainly with fast-acting fertilizer.

2) Apply basal fertilizer from October to December, mainly organic fertilizer, accounting for 40-50% of the annual fertilizer amountIt is very important to apply basal fertilizer in autumn, taking nitrogen fertilizer as an example, in the middle and late stage of pear fruit expansion, if too much nitrogen fertilizer is applied, the fruit shape is larger, but the sugar content of the fruit decreases, the flavor becomes lighter, and the disease is heavier, which does not meet the requirements of high-quality cultivation. The beginning of June is the main period for pear new leaves to synthesize carbohydrates, the tree does not need too much nitrogen, but too little nitrogen is not conducive to flower bud differentiation, will affect the flowering and fruiting of the second year, the best way to solve this contradiction is to apply more organic fertilizer in autumn and winter.

3) Top dressing before and after flowering to promote flowering, fruiting and branch growth, pre-flowering topdressing is mainly fast-acting nitrogen fertilizer, and post-flowering topdressing is mainly phosphorus and potassium fertilizer.

4) In the fruit expansion stage, it is applied in the fruit expansion stage of various varieties, and nitrogen, phosphorus and potassium are used together.

3. The use of trace elements.

Trace element deficiencies are prone to nutrient deficiencies.

If iron deficiency is easy to cause yellow leaf disease, ferrous sulfate solution can be sprayed 1-2 times a month in the growing season, and the yellow leaves can be re-green after multiple spraying, and a certain amount of ferrous sulfate can also be applied in spring. Zinc deficiency is easy to cause lobular disease, you can spray 4-5% zinc sulfate solution before germination, and spray zinc sulfate solution after germination. In addition, the boric acid solution sprayed during or after flowering can not only improve boron deficiency, but also improve fruit set.

For pear seedlings, because the root system of young trees is not developed, fertilization should be based on the principle of thin fertilizer and frequent application, so as not to burn seedlings. At the same time, phosphorus and potassium fertilizers are added to enhance the tree's potential.

September-October.

The pear tree can be fertilized each year after the fruit is harvested and until the buds germinate in the following spring. However, September to October is the best time to use autumn fertilizer. Reputation.

From September to November every year, that is, after the pear tree is picked and before the leaves fall, its photosynthesis is still continuing, so the root system will enter the peak growth period.

Fertilization time of yellow-crowned pear.

Yellow-crowned pear can be applied once in 7-10 days after harvesting, in order to facilitate the recovery of tree potential, increase nutrients and the occurrence of autumn roots, in October to December when the basal fertilizer is applied, mainly organic fertilizer.

Yellow crown pear needs to be topdressed 2-3 times, mainly before germination, after flowering, and during the fruit expansion period, which is conducive to meeting the nutrient needs of the plant at all stages.

What fertilizer to apply to the yellow crown pear.

In the early stage of growth, nitrogen fertilizer can be applied to promote the flourishing of branches and leaves and the development of flower organs, improve the flower quality and fruit rate of wild molding, and the fertilizer containing phosphorus and potassium can be applied during the flowering period to promote the differentiation of flower buds, and nitrogen and potassium fertilizer can be used to improve the yield of fruits during the fruit expansion stage.

Fertilization method of Huangguan pear.

Huangguan pear needs to do a good job of fertilizer and water management, in the autumn when the soil is renovated, you can apply decomposed organic fertilizer, the depth is 50 cm is appropriate, before flowering, after flowering and fruit expansion period, you need to apply an appropriate amount of top dressing according to the fertility of the soil, you can also apply an appropriate amount of iron, zinc, boron and other micro-fertilizers.

Precautions for fertilization of Huangguan pear.

Yellow crown pear fertilization needs to pay attention to thin fertilizer diligent, so as not to burn seedlings, in the flowering period or after flowering can be sprayed diluted boric acid solution, can improve the fruit setting rate, each application amount needs to be controlled, can not use too much fertilizer.

Summary. Hello, the fertilization of crown pear saplings, mainly nitrogen fertilizer, the main purpose is to promote root expansion and crown expansion, so that it can bear fruit earlier.

Hello, the fertilization of crown pear saplings, mainly nitrogen fertilizer, the main purpose is to promote root expansion and crown expansion, so that it can bear fruit earlier.

Generally, 1 kg of bio-organic fertilizer per plant plus kilogram of urea digging and grinding, with the application of plant ash, farm fertilizer, soil miscellaneous fertilizer, etc., Bu Han applied 3-5 times a year, and it should be applied diligently. In the peak growing season, apply "rooting multi-treasure" humic acid fertilizer 1-2 times with water to promote early root emergence and strengthen roots and crowns. Combined with spraying foliar spraying, 800 times of humic acid foliar fertilizer was sprayed with "Tongzhimai", and used 3-4 times in a row.

Fertilization time of yellow-crowned pear.

Fast-acting fertilizer can be applied once within 7-10 days after harvesting, which is conducive to the recovery of tree potential and increases the occurrence of nutrients and autumn roots. From October to December, basal fertilizer is applied, mainly organic fertilizer. Yellow crown pear needs to be topdressed 2-3 times, mainly before germination, after flowering, and during the fruit expansion period, which is conducive to meeting the nutrient needs of plants at all stages.

What fertilizer to apply to the yellow crown pear.

Nitrogen fertilizer can be applied in the early stage of growth of Huangguan pear to promote the flourishing of branches and leaves, the development of flower organs, and improve the quality of flowers and fruit setting rate. Fertilizers containing phosphorus and potassium can be applied at the flowering stage to promote flower bud differentiation, and nitrogen and potassium fertilizers can be used to improve fruit yield at the fruit expansion stage.

Fertilization method of Huangguan pear.

Yellow-crowned pears need to be well managed with fertilizer and water. When renovating the soil in autumn, it is advisable to apply decomposed organic fertilizer to a depth of 50cm. Before and after flowering and fruit expansion, appropriate topdressing should be carried out according to soil fertility, or an appropriate amount of trace elements such as iron, zinc, and boron should be applied. Nuclear.

Precautions for fertilization of Huangguan pear.

When fertilizing the yellow crown pear, it is necessary to pay attention to the thin fertilizer and avoid burning the seedlings. Dilute boric acid solution can be sprayed during flowering or after flowering to increase fruit setting rate. The amount of each application should be well controlled, and too much fertilizer should not be used.

Yellow crown pear is divided into autumn and spring, if it is spring yellow crown pear, the method of treating the cracked fruit is as follows:

1.Fertilization: During the spring budding period and when the fruit is expanded, the pants are fertilized with potassium dihydrogen phosphate, rotted slag machine fertilizer or calcium magnesium fertilizer, which can increase the thickness of the fruit wall and make the fruit more solid.

2.Water retention: Keep the soil moist during fruit enlargement and avoid under- or over-water, which can cause the fruit to split.

3.Environmental control: Controlling temperature and humidity is also very important for the development of yellow crown pear. During the fruit expansion period, it is necessary to maintain the appropriate temperature and humidity to avoid fruit cracking caused by high temperature and low humidity.

4.Tree management: Proper tree shape management and pruning can reduce the burden on the tree and improve fruit quality. Regular pruning also makes it easier for the tree to absorb enough nutrients and water, allowing the fruit to grow healthier.

It should be noted that the fruit cracking problem of Huangguan pear may also be related to other factors, such as weather, insect pests, etc. Therefore, in practice, it is necessary to take comprehensive measures according to the specific situation, such as selecting varieties, dealing with insect pests, and so on.