Production of high quality crisp pears for strengthening summer management

The summer is the period with the largest amount of vegetative growth and the fastest reproductive growth in a pear. It is also the period when the pear is most affected by the external conditions. In this period, pears have higher requirements for fertilizer and water conditions, and they are also vulnerable to pests and diseases. The level of management will have a significant impact on pear production and fruit quality. In order to improve the fruit quality of Suan Pear, careful summer management is required for the growth characteristics of Pear.

Fertilization and Irrigation

For an orchard with a yield of 4,000 to 4,500 kilograms per mu, the nitrogen, phosphorus, and potassium content per acre is 12%, 16%, and 28% for a compound fertilizer of 75 kilograms, and a total of 6 kilograms are applied between June and August. . Applying more potassium in summer can increase the sugar content of Pear. In addition, the cooked soybeans are sprinkled under the canopy and lightly flipped (poorly applied to the acupuncture points). It is advisable to use 5 to 10 kilograms per acre to improve the pear flavor. While fertilizing, pay attention to timely irrigation to promote fruit enlargement.

Spray insect pests

In the summer, Baitai, Shigao, Antaisheng and Thiophanate-methyl can be used to prevent disease and spray once every 15 days. Used for blessing and avermectin to prevent pear lice and other pests, if the pear hibiscus is seriously endangered, can be used Mu wang 5000 times liquid (no need to add additives, so as not to cause fruit surface dark spots) prevention and treatment. In order to strengthen the nutrition of the tree, it can add urea or potassium dihydrogen phosphate or trace elements such as iron, zinc, boron, or Tiannuo (foliar fertilizer) 1200 times according to tree vigor, spraying 3~4 times. . In order to prevent the decrease of fruit quality, Bordeaux liquid and Bifare should not be sprayed. The former can make the pericarp thickened (cause causality is not bagged) and reduce the sugar content; the latter can make the fruit surface red and reduce the commodity value of the fruit.

Draining excess new shoots

A reasonable tree structure is the premise of high quality fruit. In principle, all new shoots on the back should be removed, thinning branches, competing branches, and cutting saw branches should be removed to open the light path to enhance the photosynthesis of the leaves. Fruit enlargement and flower bud differentiation. At the same time, erection branches (groups) with less fruit set and severe shading were retracted or removed.

Continue fruit thinning

If the fruit removal is not finished, it is necessary to continue fruit thinning. Under the premise of guaranteeing production, try to remove as much as possible the “public pear” that is still present in the bud. At the same time, remove the remaining petals of the fruit pods, otherwise it will make the fruit rust.

Orchard sowing grass

Based on the removal of weeds in spring, try to keep grasses that grow in summer, implement inter-row (natural) weeds and in-row ploughing, and conditional orchards can make artificial grasses, such as clover, high-wool, alfalfa, and wool. Ye Zizi, etc., to make full use of light energy, improve soil organic matter.

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