Micronutrient foliar fertilizer help preventing and recovering some physiological disease on fruit trees
19/11/2021
BSc Do Cong Hoang In recent years, micronutrient-fertilizers have been specially put into use by farmers in fruit and vegetable areas, bringing about outstanding yield and quality, becoming an indispensable fertilizer in today is agricultural production. Some fertilizers containing micronutrients are also actively purchased by farmers in some regions for root fertilization or foliar spray for fruit trees to help keep plants healthy and resistant to physiological diseases such as yellowing of leaves, leaf blight, leaf curl, drooping, apical death, flower drop, young fruit drop, tree failure (stunted...) In the context of the fertilizer market, there are still many products with bad quality that have not helped farmers to produce high-yield and high-quality agricultural products. To meet the needs of producers, Saigon Plant Protection Joint Stock Company introduces to you a high-grade Super Bo-Zinc micronutrient fertilizer, which is essential during the growth process for plants with high sensitivity to Bo and Zinc. PRODUCT INFORMATION: - BOROZINC is a fertilizer containing easily digestible Bo and Zinc with very high content, imported from France. - BOROZINC is canned 200 grams. The finished product is in the form of a powder, which is rapidly soluble and completely soluble in water. - Manufacturer: AGRONUTRITION. Address: Parc Activestre - 3 av. de l will Orchidese - 31390 CARBONNE – France. - Registered for circulation in Vietnam: DESANGOSSE Company. Address: Bonnel 47480, Pont-Du-Case, France. - Exclusive distribution: Saigon Plant Protection Joint Stock Company. INGREDIENTS: - Boron (B): 130,000 ppm (= 13% Boron) - Zinc (Zn): 40,000 ppm (= 4% Zinc)xz - Humidity: 1% USES: - BOROZINC effectively prevents Bo and Zinc deficiency for plants. Because most soils in Vietnam lack 2 trace elements B and Zn. - BOROZINC is the ideal product for fruit trees sensitive to elements B and Zn, effectively preventing the symptoms of small leaves, deformed, discolored, drooping, dead tops, drop of young fruit, cracked fruit., hard fruit, porous heart... - BOROZINC is a premium product with a particularly mild formula, which is very useful to use during sensitive periods when plants are vigorous growth and have high B and Zn requirements such as: flowering, pollinating, fruit setting… - BOROZINC dissolves quickly and completely in water, creating an optimal pH environment when in contact with the plant cuticle to help nutrients be quickly and thoroughly absorbed by the leaves. DIRECTIONS FOR USE: Foliar fertilization 1. Fruit trees: Durian, citrus, mango, custard apple, dragon fruit, longan… Mix 25 - 50g / 25 liters of water. Or mix 200 - 400g for a drum of 200 liters of water. spraying stages: Division of flower sprouts, young fruit and fruit nutrition. 2. Vegetables: Cabbage, Cauliflower, Potato, Tomato, Red pepper, Watermelon, Cucumber, French beans... Mix 25 - 50g / 25 liters of water. Spray on the greening recovery , pre-flowering, and young fruiting stages. 3. Food crops: Rice, corn… Mix 12.5 - 25g / 25 liters of water. Spray at periods 30, 45 and 55 days after sowing. 4. Beans: Peanuts, soybeans, Mungbeans… Mix 12.5 - 25g / 25 liters of water. Spray in the period before and after flowering. * USES OF BO (B): - Prevent symptoms of drooping, dead shoots. - Helps to flower early, simultaneously. - Increase pollination rate, prevent flower drop. - Increase the rate of fruit set on the crops. - Bo enhances the ability to absorb and transport Calcium in plants. Help: + Limit dropping of young fruit on fruit trees. + Prevents the phenomenon of fruity, dry citrus on durian, oranges, tangerines, pomelos, ... + Preventing symptoms of Bo deficiency causing left cracking, intestinal bulges, deformed fruits, etc. * USES OF ZINC (Zn): - Zinc helps promote the growth and development of plants. - Zinc increases the ability to use phosphorus and nitrogen, helps the roots develop better, enhances drought tolerance, heat tolerance, increases disease resistance for plants, reduces young fruit drop. - Prevent and quickly overcome symptoms of zinc deficiency on crops: + Leaves are small, deformed, turn pale green or yellow. + The young shoots grow slowly and dry out gradually, the tree is barren. |
To prevent, in addition to plowing and burying weed seeds, collecting weed stalks and stumps left after tilling the land to burn, not letting weeds produce seeds in production fields, etc., the use of chemical products is still a measure. optimal because of its ability to thoroughly kill weeds, reduce labor and take advantage of more time than manual weeding.
Miner has the scientific name Phyllocnistis citrella Staint., family Phyllocnistidae, order Lepidoptera. The miner occurs in many countries in the tropics and subtropics. The main host of the miner is the citrus family - Rutaceae. In addition, the miner also attacks mangosteen and some other plants.
Adult is a small planthopper, with a body 2-3 mm long, the whole body is ash gray, slightly greenish, the wings are opaque with many small brown spots.Eggs are oval, 0.3 mm long, have a pointed end and are attached directly to the leaf surface, leaf axils.
Green bugs specialize in the fruit of citrus groups (oranges, tangerines, lemons, grapefruits, kumquats...), some people call them orange bugs, or orange suckers. Their scientific name is Rhynchocoris poseidon or Rhynchocoris humeralis.
In Vietnam, yellow leaf curl disease is very common on papaya trees, especially the disease is often severe in areas of high and continuous planting, areas with hot and arid climates. The disease has significantly reduced the yield and quality of papaya. Gardens that are infected early when the plants are young may not yield. However, up to now, many gardeners still do not know the cause and how to fix it.
Spider mites are common pests on citrus trees, especially in hot and dry climates that are suitable for spiders to grow and cause severe damage.The group of harmful spiders is usually very small in size, unlike the natural enemy spiders.
This group includes species that are generally very small in size, causing damage by sucking plant sap (on leaves, fruits, branches, stems).
There are many species of mealybugs present on the group of Oranges,Tangerines,Grapefruits and Lemons (Citrus), which can be divided into 2 groups:
+ Group of sticky mealybugs with common varieties such as Lepidosaphes, Aonidiella, Coccus and Saissetia.
+ Group of flower mealybugs with common genera and species such as Pseudococcus, Planococcus and Icerya purchasi.
Dry branches and berries disease often appear to be common damage on coffee gardens during the rainy season. The disease causes death of branchs, dry fruit, severely affects the canopy structure and coffee yield if not paid attention to prevention.
Pink disease commonly causes diseases on rubber plantations in the rainy season, especially on garden from 4-8 years old. This year, rubber has to go through a period of severe drought, weakening the tree, so now in tnshe rainy season it is easy to get infected. Therefore, it is necessary to pay attention to good management to avoid affecting the garden.
In recent years, the area of citrus has been expanded because it is a fruit tree with high economic efficiency. However, in order to sell at a high price, not only in quality but consumers also require the external beauty of the fruit, so pest management on citrus is a matter of great concern to farmers. The hot season is a favorable condition for thrips to develop and cause damage, affecting the commercial value of fruit.
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