Pear Tree Spring Management Technology

The 5.12 mega earthquake caused a serious blow to agricultural production in Sichuan. After the earthquake, due to various problems in rural areas, fruit farmers managed to loosen the management of fruit trees since last summer. The application of fertilizers in orchards, pest control, and pruning was implemented. Poor. In order to restore and manage the orchards, the township and township agricultural service centers are required to strengthen technical training and technical guidance, pay close attention to the implementation of various technical measures for pear tree spring management, and in particular strengthen the management of pear tree fertility management and flowering period management, which can make up for the early period. Inadequate management can lay a solid foundation for the harvest of pears.

First, strengthen fertilizer management

Insufficient fertilization is a key factor that restricts the improvement of the production efficiency of pear trees in our city. The majority of farmers must complete the quality on time.

1. Apply fertilizer before flowering: During the period from early February to early March, require that 45% of potassium sulphate-type fruit tree special fertilizer is applied to adult pear trees and the amount of fertilizer is 20-25 kg.

2, make a good foliar fertilizer: After the leaf color turns green, add 0.2% potassium dihydrogen phosphate or 0.2% foliar fertilizer spray with 0.3% urea.

Second, strengthen pest control

1. Make a good start of gardening: When the flower bud scales loosen until they are barely blooming, hit the first medicine and make a second medicine after 80% of the flowers. Use 2.5% green kungfu 2500 times or farmland 2000 times spray to add fungicide. The medicine should be used in turn. Everyone should pay attention to not play any pesticide in the flowering period of pear tree to avoid phytotoxicity.

2. Prevention of Pear Scab: The first drug is sprayed on the leaves of pears and the second drug is sprayed after 15 days. Use Fuxing 8000-10000 times solution or pear gold 2500 times solution or diniconazole 2500 times evenly spray.

Third, do a good job to protect the fruit

Since last year basically did not apply strong fruit fertilizers, the number and quality of flower buds this year have been severely affected. Therefore, this year's management of pear trees must be focused on keeping flowers and fruits.

1, Pharmacological protection of fruits: From the beginning of the flowering period with 0.2% borax white sugar solution, plus 1 g 2,4-D water 200 kg or 15PPm naphthalene acetic acid spray, spray a total of 2-3 times.

2. Artificially-assisted pollination: first collect the bell buds of the pink pears, go to the flower identification and debris, place the anthers in white paper, and then place them at 20-25 °C or wrap the anthers with white paper into the underwear pockets. After hatching, after the anther has cracked (about 20 hours), it will oscillate in the small jar, yellow powder will appear on the inner wall (ie pollinating the pollen), and a small amount of pollen will be drawn with a brush or rubber head or feathers to the flowers. Just on the pistil.

3. Put pears in pear gardens: Put a box of bees on 20 acres of pear gardens.

Fourth, strengthen the management of high pears

The pears that are exchanged high in the spring must be checked for the survival rate of grafting in time. When the new shoots grow to 40cm, they must be tied with bamboo sticks to prevent wind and pull branches. When 40-50 centimeters, it is necessary to pick up the heart in time to induce branching. In May-June, a knife is used to cut the film in the upright direction so as not to affect the growth of the shoots.

In previous years, high-risk pear farms should strengthen fertilizer and water management, strengthen the prevention and control of pear and pear scab, and promote the robust growth and development of trees, and expand the canopy as soon as possible to restore production.

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