According to relevant data analysis: jujube trees have a large amount of flowers, and the main reason for low fruit setting rate is the lack of trace element fertilizer during flowering. In response to this situation, we conducted a trial of spraying trace elements fertilizer on jujube trees during flowering. The results of several tests showed that: “Changle†rare earth phytoalexin microelement fertilizer (concentration 300-50010-6) was sprayed three times in the flowering period, young fruit period, 30 days before fruit picking (Xihang, Xiyang, Shanxi Province). Rare Earth Industry Co., Ltd. production) can increase fruit set rate of 12% -15%, single fruit weight gain of about 15%, and single date hanging up to 9 as long.
Spraying Rare Earth Fertilizer can increase fruit setting rate and improve fruit quality. Because rare earth microelement fertilizer promotes tree growth, enhances the absorption capacity of fruit trees for N, P, and K, improves the sweetness and sugar-acid ratio of photosynthesis high-fruits of jujube leaves, promotes early fruit ripening, improves fruit quality, and enhances jujube trees. The resistance to pests and diseases and stress resistance promote flower bud differentiation, thereby increasing the fruit setting rate, increasing yield, and increasing farmers' income.
Through several experiments, the author believes that the date farmers should pay attention to the following points when spraying rare earth fertilizer:
1. Should be sprayed on a robust tree, banned in the application of aging strains.
2. Spraying concentration should be appropriate. It is considered that the best concentration is 30010-6, and the highest should not exceed 60010-6.
3. Because rare earth fertilizers are slightly acidic, they cannot be mixed with alkaline substances (such as ammonium phosphate, molybdic acid, calcium magnesium phosphate fertilizers, and alkaline pesticides).
4. Spraying should be carried out in the afternoon to avoid the sun, suitable for spraying in the morning and night when the temperature is low, 6-8 hours after spraying rain spray, in the fruit growth period only need to spray 1-2 times.
5. The spray mist should be uniform, and the functional spray should focus on the leaves so as to make the drop drop at the tip of the leaf. If you add 20-25 grams of neutral laundry detergent per 60 kg of solution, the effect is better.
In recent years, the application of rare earth trace element fertilizers on jujube trees, the author found that it is necessary to spray rare earth micro-fertilizers on the basis of sufficient water and fertilizer to achieve the effect. If it is combined with flowering water spray, blooming flowering dates, Zaoyuan Measures such as releasing bees will be more effective in increasing production and improving quality.
Intermediates in organic synthesis refer to molecules that have not yet been fully integrated into the desired molecules in organic chemical synthesis. They are only an intermediate state of the molecule. They may be either an ionic group or a relatively stable macromolecule with an external non-electric property. After being synthesized, it can become a stable compound. In short, Organic Intermediates are intermediates used in chemical synthesis, including alcohols, phenols, benzene, alkenes, ketones, amines, anhydrides and so on. Organic intermediates can be used as Pharmaceutical Intermediates, dye intermediates and Material Intermediates. Organic intermediates are mainly used in the development of organic synthetic chemical products, especially in medicine, pesticides, dyes, organic pigments, photosensitive materials and so on.
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