Apple bagging can make all apples produced in high and medium-grade non-pollution fruit products, which can minimize the number of drugs used and dosage, reduce pesticide residues and production costs, avoid environmental pollution, and achieve low input and high output. . At present, there are many kinds of apples used in the market. How to choose fruit bags suitable for the local climate conditions must be comprehensively considered in terms of site conditions, the structural quality of bags, production purposes, and economic conditions.
First, the type of bag
1. Paper Bags (1) Double Paper Bags: There are three types: one is a Japanese bag represented by Kobayashi Bag; the other is a Taiwan bag represented by Qingtian (Kita), and an imported bag of South Korea; and third is Kaixiang. Domestic bags represented. The difference between domestic bags and imported bags is getting closer and closer to quality. Double-layer paper bags can be divided into one-time removal and two-time removal bags. Disposable double-layer bags with black inner bag and inner and outer bags stick together. The double-layered double-layer paper bags have different colors on both sides. The outer layer is mostly gray and the inner surface is black. The inner bag is divided into wax and Super calendering two kinds, generally red, the inner jacket is not sticky, suitable for red varieties, set of double-leaf paper bag fruit with delicate skin, white background, bright and uniform coloring, can be exported or supply high-end market.
(2) Single-layer paper bags: divided into shading bags, wood pulp bags, and book newspaper bags. Single-layer shading bags are suitable for producing high-middle-grade red varieties, and the effect is worse than double-layer paper bags. Pulp primary color bags are suitable for non-red apple varieties (used for pears, peaches, grapes, etc.). In order to prevent fruit rust and improve fruit surface finish, single-layer paper bags can be used, which are lower in cost and higher in efficiency than double-layer paper bags. Book newspapers and newspapers bags are generally self-produced by the fruit farmers for their own purposes, which can serve to prevent the pollution of liquid medicine and prevent pests from harming.
2. The plastic film bag is original in China. The advantage is that the price of the bag is low, which can effectively prevent rotten fruit and borerworms, and does not require bag removal during harvesting. The internal quality of the fruit product is high, and the disadvantage is that the appearance quality is inferior to the paper bag fruit.
Second, the bag quality requirements High quality fruit bag is the basis for the success of bagging. It is necessary to purchase fruit bags with registered trademarks, high quality brand names, factory guarantees and better results in local applications.
(1) Paper bag: Double paper bag requires the outer bag paper to withstand wind, sunlight, rain, good air permeability, no water seepage, good light-shielding, soft paper, good glue at the mouth, and good wax in the inner bag. Wax evenly, not easy to wax after the sun; bag mouth to have a wire, the inner and outer bags are separated from each other. The identification method is: a look at whether there is a trademark manufacturer; second look at the water resistance and permeability of paper bags. Good paper bag soaked in water for more than 8 hours rubbing is not easy to break; 3 to see the paper bag specifications. The ideal paper bag specification is 19.5 cm 15 cm in the outer bag and 16.5 cm in the inner bag 14.5 cm. Fourth, look at the quality of the appearance of the paper bag, do not open the plastic, do not lose wire, ventilation hole, drain outlet is moderate.
(2) Plastic film bag: It requires anti-aging agent, anti-sunburn agent, pest repellent, made of polyethylene micro-membrane, and it is made according to scientific formula. The length of bag is 19.5-21cm, width is 16-17cm, thickness is 0.005-0.006cm. , Each one weighs 36-40 grams; the top of the bag is fully open or semi-sealed, and there are 3 2-3 cm drainage holes in the bottom two corners of the bag and in the middle. There are several vent holes in the bag. The bag opening is easy to open. Stick fruit surface, uniform thickness, anti-aging time is more than 5 months. Years of experiments have proved that translucent milky bags have the least amount of sun-burning fruit.
Third, the selection of bags According to the characteristics of the different fruit bags, combined with different apple varieties and production purposes, we can determine the required fruit bags.
1, according to market demand, choose bags. The premise of choosing bags is to look at the needs of the market, promote whole-plant, whole-tree, whole-fruit bagging, high-grade fruit bags, mid-range fruit bags, and low-grade bags. To produce export fruit, we must use brand-name double-layer paper bags; to produce superior grade fruit, we can choose middle-grade double-layer paper bags; we mainly produce first-grade fruit, available low-grade double-layer paper bags, single-layer paper bags and plastic film bags. The cultivation conditions, technical level, and economic ability are all poor. They can be plastic film bags and single-layer paper bags.
2, see the selection of bags. Gold and other yellow and green apple varieties, without coloring, the purpose of bagging is mainly to improve the surface finish of the fruit, to prevent fruit rust, should be consistent with the pulp color paper bags and plastic film bags; Qin crown apples can be plastic film bags; easier to color The red varieties, such as the new red apple, should be combined with a single-layer shading bag and a plastic film bag; the red varieties of red Fuji apple, which is more difficult to be colored, should use high- and mid-range double-layer paper bags, and the single-layer shading bags and plastic film bags should be combined. . In a Red Fuji apple tree, the best robust double-leaf paper bag on the upper, outer, and sunny side of the canopy, and the sun-soaked fruit set single-layer shading bag in the south and southwest direction, the canopy in the canopy and the shade in the lower part. Fruit full plastic bag.
3, selected bags due to weather conditions. Only the scientific selection of fruit bags suitable for the local climatic conditions can achieve the best bagging effect. In areas with high altitude, large temperature difference, and strong sunlight, Red Fuji apples are well colored in single-layer paper bags and translucent plastic bags. In the high-temperature, rainy areas of Pingchuan, we must use paper bags and plastic films that are breathable and have good drainage. Bags; in the loess high temperature and low rainfall source, the apple is easy to color, can be a single layer paper bags and plastic bags containing ultraviolet light conversion agent.
First, the type of bag
1. Paper Bags (1) Double Paper Bags: There are three types: one is a Japanese bag represented by Kobayashi Bag; the other is a Taiwan bag represented by Qingtian (Kita), and an imported bag of South Korea; and third is Kaixiang. Domestic bags represented. The difference between domestic bags and imported bags is getting closer and closer to quality. Double-layer paper bags can be divided into one-time removal and two-time removal bags. Disposable double-layer bags with black inner bag and inner and outer bags stick together. The double-layered double-layer paper bags have different colors on both sides. The outer layer is mostly gray and the inner surface is black. The inner bag is divided into wax and Super calendering two kinds, generally red, the inner jacket is not sticky, suitable for red varieties, set of double-leaf paper bag fruit with delicate skin, white background, bright and uniform coloring, can be exported or supply high-end market.
(2) Single-layer paper bags: divided into shading bags, wood pulp bags, and book newspaper bags. Single-layer shading bags are suitable for producing high-middle-grade red varieties, and the effect is worse than double-layer paper bags. Pulp primary color bags are suitable for non-red apple varieties (used for pears, peaches, grapes, etc.). In order to prevent fruit rust and improve fruit surface finish, single-layer paper bags can be used, which are lower in cost and higher in efficiency than double-layer paper bags. Book newspapers and newspapers bags are generally self-produced by the fruit farmers for their own purposes, which can serve to prevent the pollution of liquid medicine and prevent pests from harming.
2. The plastic film bag is original in China. The advantage is that the price of the bag is low, which can effectively prevent rotten fruit and borerworms, and does not require bag removal during harvesting. The internal quality of the fruit product is high, and the disadvantage is that the appearance quality is inferior to the paper bag fruit.
Second, the bag quality requirements High quality fruit bag is the basis for the success of bagging. It is necessary to purchase fruit bags with registered trademarks, high quality brand names, factory guarantees and better results in local applications.
(1) Paper bag: Double paper bag requires the outer bag paper to withstand wind, sunlight, rain, good air permeability, no water seepage, good light-shielding, soft paper, good glue at the mouth, and good wax in the inner bag. Wax evenly, not easy to wax after the sun; bag mouth to have a wire, the inner and outer bags are separated from each other. The identification method is: a look at whether there is a trademark manufacturer; second look at the water resistance and permeability of paper bags. Good paper bag soaked in water for more than 8 hours rubbing is not easy to break; 3 to see the paper bag specifications. The ideal paper bag specification is 19.5 cm 15 cm in the outer bag and 16.5 cm in the inner bag 14.5 cm. Fourth, look at the quality of the appearance of the paper bag, do not open the plastic, do not lose wire, ventilation hole, drain outlet is moderate.
(2) Plastic film bag: It requires anti-aging agent, anti-sunburn agent, pest repellent, made of polyethylene micro-membrane, and it is made according to scientific formula. The length of bag is 19.5-21cm, width is 16-17cm, thickness is 0.005-0.006cm. , Each one weighs 36-40 grams; the top of the bag is fully open or semi-sealed, and there are 3 2-3 cm drainage holes in the bottom two corners of the bag and in the middle. There are several vent holes in the bag. The bag opening is easy to open. Stick fruit surface, uniform thickness, anti-aging time is more than 5 months. Years of experiments have proved that translucent milky bags have the least amount of sun-burning fruit.
Third, the selection of bags According to the characteristics of the different fruit bags, combined with different apple varieties and production purposes, we can determine the required fruit bags.
1, according to market demand, choose bags. The premise of choosing bags is to look at the needs of the market, promote whole-plant, whole-tree, whole-fruit bagging, high-grade fruit bags, mid-range fruit bags, and low-grade bags. To produce export fruit, we must use brand-name double-layer paper bags; to produce superior grade fruit, we can choose middle-grade double-layer paper bags; we mainly produce first-grade fruit, available low-grade double-layer paper bags, single-layer paper bags and plastic film bags. The cultivation conditions, technical level, and economic ability are all poor. They can be plastic film bags and single-layer paper bags.
2, see the selection of bags. Gold and other yellow and green apple varieties, without coloring, the purpose of bagging is mainly to improve the surface finish of the fruit, to prevent fruit rust, should be consistent with the pulp color paper bags and plastic film bags; Qin crown apples can be plastic film bags; easier to color The red varieties, such as the new red apple, should be combined with a single-layer shading bag and a plastic film bag; the red varieties of red Fuji apple, which is more difficult to be colored, should use high- and mid-range double-layer paper bags, and the single-layer shading bags and plastic film bags should be combined. . In a Red Fuji apple tree, the best robust double-leaf paper bag on the upper, outer, and sunny side of the canopy, and the sun-soaked fruit set single-layer shading bag in the south and southwest direction, the canopy in the canopy and the shade in the lower part. Fruit full plastic bag.
3, selected bags due to weather conditions. Only the scientific selection of fruit bags suitable for the local climatic conditions can achieve the best bagging effect. In areas with high altitude, large temperature difference, and strong sunlight, Red Fuji apples are well colored in single-layer paper bags and translucent plastic bags. In the high-temperature, rainy areas of Pingchuan, we must use paper bags and plastic films that are breathable and have good drainage. Bags; in the loess high temperature and low rainfall source, the apple is easy to color, can be a single layer paper bags and plastic bags containing ultraviolet light conversion agent.
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