Production management of peach, pear and plum
1, good base fertilizer: this fertilizer is mainly organic fertilizer, should be applied before the fruit tree leaves, the purpose is to facilitate the decomposition of organic fertilizer, next spring can play an early fertilizer effect. Dosage depends on varieties, crown size, the number of fruit and the strength of the tree, conditional application of 10~15 kg of burnt mud per plant. At the same time, before defoliation, it can prolong the life of leaves and improve the quality of flower buds.
2. Do a good job in clearing the garden: carry out comprehensive clearing of the garden, eliminate overwintering pests and diseases, and reduce the base number of overwintering pests and diseases.
(1) mainly scrape off the trunk, main branch and auxiliary main branch and large lateral branches of the thick bark, flow gum and plum branch rot disease spots, with 43% Holic 1 pack (3 ml) plus 50% carbendazim WP 25 g water 2.5 kg, or sulfur suspension agent stock solution (or water 1 times) plus "402" antibacterial agent 50~100 times, or 843 rehabilitation agent stock solution, painted on the affected part; Also available 43% Holic 1 pack plus 50% carbendazim 25g flush 15kg, spray branches.
(2) Spray 3~5 degrees of stone sulfur mixture on trees and ground, or 120~180 times of crystal sulfur.
(3) White coating: white coating agent for trunk, main branch, auxiliary main branch and large lateral branch.
3, winter pruning: time from mid-November, late to germination can be, in this period should be early. Cut off dead branches, diseased branches, thin branches, crossed branches and overlapping branches. Except for the position of excessive branches, which can be changed to fruiting branch group, they should generally be cut off from the base. At the same time, pruning is carried out according to the fruiting habits of various fruit trees. When pruning, pay attention to the following two aspects: (1) the main branch, the extension of the main branch of the cut bud must leave the outer bud, if the extension of the head position is not appropriate (angle improper, cross, too high), you can choose the appropriate branch to change the head, but the cut bud stay method is the same. (2) Pay attention to culturing fruiting branch groups and fruiting basal branches, and increase fruiting parts. For trees with large gaps in the middle and lower parts of the crown, appropriate extended branches can be selected for short truncation, leaving 3 to 5 full buds at the truncated position. At the same time, the fruit platform branches should also be retracted to 1~2 buds.
4. Deep ploughing and soil improvement: clear ditches and cultivate soil in tree trays. On this basis there are conditions as many as possible kinds of green manure. Varieties have clover, broad bean, Indian cowpea, Indonesia mung bean and so on.
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Storage and fresh-keeping Technology of fresh Peach
1. Frozen peaches are vulnerable to freezing injury during low temperature storage, and there is a risk of freezing at-1 ℃. Therefore, the suitable storage temperature of peach is 0 ℃, and the suitable relative humidity is 90%-95%. Under this storage condition, peaches can be stored for 3-4 weeks or more. However, when the peach is stored at low temperature for a long time, the flavor will gradually fade, and the long-term cold storage will cause freezing injury and browning of the flesh, especially when the peach is ripe in the high temperature environment, the pulp will become dry, spongy and soft, and the pulp around the core will be bright.
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A New flat Peach Variety-- Ruili 21
Ruili 21, a new very late ripening white flesh flat peach variety bred by the Forestry Fruit Tree Research Institute of Beijing Academy of Agriculture and Forestry, was approved in Beijing not long ago. All kinds of fruit branches of this variety can bear fruit, mainly long and medium fruit branches, and the natural fruit setting rate is high. The fruit development period is about 166 days, and the annual growth period is about 208 days. The fruit is large, with an average single fruit weight of 235.6 grams and a maximum fruit weight of 294g. The pericarp is medium thick and difficult to peel off. The flesh is yellow and white, there is no red silk under the skin, and red near the nucleus. The meat is hard.
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