Fruit enlargement period peach oysters management
2022-12-11 07:09:23
In May, greenhouse peaches have entered the period of fruit enlargement. Experts from the fruit innovation team of Shandong Province, the person in charge of the fruit and vegetable video network, and Xu Mingju, a senior agronomist of the Feixian Fruit Industry Management Bureau, said that at this time, the quality of the fruit and vegetables management will directly affect the yield, quality and benefits of the peach. Then, what problems should be paid attention to in this period of scientific management?
The temperature and humidity in the booth are not vague
In the fruit enlargement period, if the temperature and humidity control in the greenhouse is not scientific, it will advance or postpone the maturity period of peach. Low temperatures will affect the fruit's fertility development and postpone fruit harvest. If the temperature is too high, for example, when the daytime temperature is higher than 28°C, the growth rate of the peach tree will be accelerated, resulting in the phenomenon of prosperous strips, resulting in fruit enlargement, thereby reducing the yield and quality of the fruit. If the nighttime temperature is too high, it will speed up the breathing rate in the shed and consume more accumulated organic nutrients. In order to increase the quality of the product and allow the peach to reach a suitable maturity, Xu Ming suggested that the temperature should be controlled at 25°C-26°C during the day and 5°C-10°C at night.
Due to the generally high external temperature this year, in case of outside weather temperatures exceeding 25 degrees Celsius or higher, fruit growers must increase their release. In sunny days, at noon, the temperature can be reduced by using a straw or shaded screen.
Peach moisture requirements are also more stringent. Air humidity in the greenhouse is too high, which usually leads to aggravation of peach pests. For example, Botrytis cinerea, perforation, aphids, and leaf miners are all susceptible to multiple diseases. Therefore, fruit growers must also pay great attention to humidity control.
During the fruit enlargement, the air relative humidity in the shed should be controlled between 50% and 60%. To control the indoor air humidity, the fruit grower can use measures such as mulching under the trees and inter-row grassing or covering, combined with other temperature management.
Underground nutrient rejected hormone-containing fertilizer
The period of fruit enlargement is peach in greenhouse, and the demand for nutrient and water is strong. During this period, on the one hand, fruit growers should implement underground nutrition supplements in a timely manner to chase the quick-acting nitrogen, phosphorus, and potassium compound fertilizers, and in particular pay attention to potassium supplements.
Xu Mingju reminded that this season fruit growers should not apply nitrogenous fertilizers, but should apply root fertilizers in appropriate amounts. Top dressing should be pure nutrient-free, full-nutrition foliar fertilizers that are free of hormones and should be applied once every 7-10 days for a total of 3-4 times. Spraying can also be used. For example, the polypeptide protein solution can be sprayed 400 times.
It should also be noted that if phytohormone-containing chemicals or fertilizers are sprayed or watered during this period, it may cause excessive vegetative growth of the plants, thereby inhibiting the enlargement of the fruits and causing the fruits to become soft when they ripen.
Control the tree to promote fruit to avoid peach tree growers
As the outside temperature continues to rise, the temperature and humidity in the shed increase, the activity of soil microorganisms increases, and the nutrients available for root absorption also increase. Such an environment can easily lead to peach tree leggy.
In order to ensure the high yield and quality of greenhouse peaches, fruit growers must adjust the relationship between vegetative growth and reproductive growth of peach trees. While controlling the vegetative growth of trees, the photosynthetic products should be supplied as much as possible to the fruit in order to promote fruit enlargement, increase yield, and improve fruit quality. the goal of. So how do you do this?
First of all, when the fruit begins to enlarge, remove the standing twigs growing in the pods of the tree in time. Under the premise of ensuring the leaf photosynthesis area, remove excess fruitless branches and dense shoots, reduce the nutrient loss of the tree, and increase the number of trees. Body permeability. At the same time, the fruiting branches and some branches with strong nutrient growth potential are subjected to topping to control the rapid extension of the branch shoots; the second shoot emerging after picking the heart is timely re-picked to promote the photosynthetic efficiency of the remaining leaves. increase.
Second, fruit growers can also control the growth of trees by applying plant growth regulators or azole pesticides. For example, as a versatile plant growth regulator, PBO is a good choice. The spray concentration and frequency can be determined according to the growth potential of the tree and the level of comprehensive management. Peach fruit is sprayed with 150 times PBO during the swell period, usually 1-2 times. In addition, some fruit growers prefer to use paclobutrazol. Relatively speaking, the use of paclobutrazol may have a problem of affecting fruit quality, although the cost is low.
Prevention and control of diseases and pests is stronger than cure
For fruit growers operating greenhouses, it is better to deal with pests and diseases and to prevent them from disease than to cure them. If the previous stage of pest control work is in place, severe pests and diseases will not occur during this period. The pests that should be guarded by fruit growers are locusts, leaf roller moths, and pears. In this regard, fruit farmers can spray 70% imidacloprid 4000 times plus 4.5% beta-cypermethrin 2000 times.
It should be noted that the diseases to be prevented are mainly perforation, fluid injection, and fruit gray mold. The control method is as follows: 2% of Ningnanmycin can be applied 1000 times and 25% of tebuconazole can be sprayed 2000 times. Trunks with fluid injection can be used. Spraying Corruption 60 times.
The temperature and humidity in the booth are not vague
In the fruit enlargement period, if the temperature and humidity control in the greenhouse is not scientific, it will advance or postpone the maturity period of peach. Low temperatures will affect the fruit's fertility development and postpone fruit harvest. If the temperature is too high, for example, when the daytime temperature is higher than 28°C, the growth rate of the peach tree will be accelerated, resulting in the phenomenon of prosperous strips, resulting in fruit enlargement, thereby reducing the yield and quality of the fruit. If the nighttime temperature is too high, it will speed up the breathing rate in the shed and consume more accumulated organic nutrients. In order to increase the quality of the product and allow the peach to reach a suitable maturity, Xu Ming suggested that the temperature should be controlled at 25°C-26°C during the day and 5°C-10°C at night.
Due to the generally high external temperature this year, in case of outside weather temperatures exceeding 25 degrees Celsius or higher, fruit growers must increase their release. In sunny days, at noon, the temperature can be reduced by using a straw or shaded screen.
Peach moisture requirements are also more stringent. Air humidity in the greenhouse is too high, which usually leads to aggravation of peach pests. For example, Botrytis cinerea, perforation, aphids, and leaf miners are all susceptible to multiple diseases. Therefore, fruit growers must also pay great attention to humidity control.
During the fruit enlargement, the air relative humidity in the shed should be controlled between 50% and 60%. To control the indoor air humidity, the fruit grower can use measures such as mulching under the trees and inter-row grassing or covering, combined with other temperature management.
Underground nutrient rejected hormone-containing fertilizer
The period of fruit enlargement is peach in greenhouse, and the demand for nutrient and water is strong. During this period, on the one hand, fruit growers should implement underground nutrition supplements in a timely manner to chase the quick-acting nitrogen, phosphorus, and potassium compound fertilizers, and in particular pay attention to potassium supplements.
Xu Mingju reminded that this season fruit growers should not apply nitrogenous fertilizers, but should apply root fertilizers in appropriate amounts. Top dressing should be pure nutrient-free, full-nutrition foliar fertilizers that are free of hormones and should be applied once every 7-10 days for a total of 3-4 times. Spraying can also be used. For example, the polypeptide protein solution can be sprayed 400 times.
It should also be noted that if phytohormone-containing chemicals or fertilizers are sprayed or watered during this period, it may cause excessive vegetative growth of the plants, thereby inhibiting the enlargement of the fruits and causing the fruits to become soft when they ripen.
Control the tree to promote fruit to avoid peach tree growers
As the outside temperature continues to rise, the temperature and humidity in the shed increase, the activity of soil microorganisms increases, and the nutrients available for root absorption also increase. Such an environment can easily lead to peach tree leggy.
In order to ensure the high yield and quality of greenhouse peaches, fruit growers must adjust the relationship between vegetative growth and reproductive growth of peach trees. While controlling the vegetative growth of trees, the photosynthetic products should be supplied as much as possible to the fruit in order to promote fruit enlargement, increase yield, and improve fruit quality. the goal of. So how do you do this?
First of all, when the fruit begins to enlarge, remove the standing twigs growing in the pods of the tree in time. Under the premise of ensuring the leaf photosynthesis area, remove excess fruitless branches and dense shoots, reduce the nutrient loss of the tree, and increase the number of trees. Body permeability. At the same time, the fruiting branches and some branches with strong nutrient growth potential are subjected to topping to control the rapid extension of the branch shoots; the second shoot emerging after picking the heart is timely re-picked to promote the photosynthetic efficiency of the remaining leaves. increase.
Second, fruit growers can also control the growth of trees by applying plant growth regulators or azole pesticides. For example, as a versatile plant growth regulator, PBO is a good choice. The spray concentration and frequency can be determined according to the growth potential of the tree and the level of comprehensive management. Peach fruit is sprayed with 150 times PBO during the swell period, usually 1-2 times. In addition, some fruit growers prefer to use paclobutrazol. Relatively speaking, the use of paclobutrazol may have a problem of affecting fruit quality, although the cost is low.
Prevention and control of diseases and pests is stronger than cure
For fruit growers operating greenhouses, it is better to deal with pests and diseases and to prevent them from disease than to cure them. If the previous stage of pest control work is in place, severe pests and diseases will not occur during this period. The pests that should be guarded by fruit growers are locusts, leaf roller moths, and pears. In this regard, fruit farmers can spray 70% imidacloprid 4000 times plus 4.5% beta-cypermethrin 2000 times.
It should be noted that the diseases to be prevented are mainly perforation, fluid injection, and fruit gray mold. The control method is as follows: 2% of Ningnanmycin can be applied 1000 times and 25% of tebuconazole can be sprayed 2000 times. Trunks with fluid injection can be used. Spraying Corruption 60 times.
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