Sunshine Rose grapes seedless expansion treatment
A small plant knowledge, introducing the maintenance of fruit trees, specifically the explanation of Sunshine Rose grapes seedless expansion treatment. Next, the editor of this site will introduce it to everyone.
About Sunshine Rose grapes seedless expansion treatment, Teacher Yang shared some insights. A few years ago, some materials from Japan were passed down, concerning the technology of making Sunshine Rose seedless. Many people, including me, have tried to make them seedless based on these materials, but always failed, with many small and large berries,僵果, and a lot of labor.
Later, under the guidance of Teacher Chen, I finally made progress and produced seedless fruits that are fragrant, large, and sweet. In fact, it's all about the timing and concentration of the medicine. I think the best time to spray the medicine is at the end of the full bloom stage, when the physiological fruit drop is about to happen, using a seedless agent.
In terms of the selection of seedless agents, one can use expert-formulated medicines or explore on their own. My suggestion is GA10-20PPM, SM200, and uniconazole 2PPM. It's also appropriate to add some amino acid foliar fertilizers and additives, of course, to be flexible. Some people prefer extra-large berries, while others like smaller ones. High concentrations and abundant fertilization will make them larger, but the side effects are also obvious, such as hardened fruit stems and diluted taste. Personally, I prefer berries around 10-12 grams, which have very good quality and aroma. Ten days after the expansion, it is generally 20/25+2+Baomeiling 5000 times with some nutrient solutions. According to Teacher Chen's experience, using Baomeiling can improve quality and prevent fruit blemishes. The medicine can be dipped or sprayed thoroughly.
Additionally, there is the aspect of pruning flowers and fruits. Generally, pruning flowers is done after the flower clusters open and before they bloom, leaving about 20 small branches at the tip of the spike. Pruning fruits is done after the fruits set, removing diseased and dense fruits, usually leaving 60-80 berries. In terms of fertilization, it is generally done after each fruit treatment, combined with watering and drip irrigation of fertilizers, such as applying 40-50 jin of a compound fertilizer with three 15s per mu, choosing a brand with good solubility. Alternatively, balanced water-soluble fertilizers can be used, 5-8 kilograms per mu. Note that fertilization should be 40-50 centimeters away from the roots to avoid root damage, and water should be added promptly and moderately after fertilization.
Before the color change, use a high potassium water-soluble fertilizer, such as 10-5-40 for drip irrigation, 5-8 kilograms per mu each time, about three times, or potassium sulfate 10-15 kilograms, 2 to 3 times. Of course, potassium sulfate can easily cause soil acidification, so it should be used sparingly. Dole uses Guoguang Yuyang high potassium, which contains various trace elements and is very helpful in improving quality. Additionally, we enhance the quality of grapes in the later stage by foliar spraying of potassium dihydrogen phosphate, amino acid foliar fertilizers, and trace elements, which indeed show significant effects.
In addition, there is the application of calcium fertilizers. In the early stage, calcium nitrate can be used, applying 15-20 kilograms per mu, supplementing nitrogen and calcium. For use during the coloring stage, it's best to use calcium gluconate or calcium acetate. We use Guoguang Lüjia calcium, combining drip irrigation and foliar spraying. Note that calcium supplementation and the spraying of potassium dihydrogen phosphate should be separated, as they cannot be mixed, easily causing a reaction that fixes calcium, affecting absorption, and causing waste. Also, the use of magnesium is important. Sometimes excessive potassium fertilization can inhibit magnesium absorption, making the leaves unhealthy, so we need to supplement magnesium and trace elements appropriately.
In summary, compared to other varieties, Sunshine Rose grapes require more organic fertilizers and potassium, calcium, and magnesium. If not properly supplemented, the quality will be much lower. To achieve good quality, more effort should be put into the soil, increasing organic fertilizers, using cover crops to grow, improving soil aeration, and increasing beneficial soil bacteria.
The above [] introduces the specific details of Sunshine Rose grapes seedless expansion treatment (experiences), hoping to bring some floral knowledge to flower enthusiasts.