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Six management measures in the melon patch make melons sweeter
Widen the day-night temperature difference A larger day-night temperature difference helps the accumulation of photosynthetic products (sugars). During the fruiting stage of melons, the day-night temperature difference should be widened as much as possible. Generally, the daytime temperature inside the greenhouse should be kept at 30°C-35°C, the nighttime temperature at 13°C-14°C, and the day-night temperature difference at 16°C-18°C. Apply less chemical fertilizer and more organic fertilizer. Basing fertilization mainly on organic fertilizer and applying no or little chemical fertilizer is another effective measure to increase the sweetness of melons. Generally, organic fertilizer is mainly chicken manure and soybean cake, and per mu a base application of
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Analysis of the Relationship Between Rusty Patches on Pear Fruit Surfaces and Pesticide Use
Irregular rust-colored patches often appear on pear fruit surfaces, affecting the appearance quality of the fruit. Fruit surface rust is generally called fruit russeting, which is formed by the gradual thickening and suberization of cell walls, with epidermal cells and the cuticle rupturing and exposing the surface, forming brown rust-colored patches. Another type of rusty patch is actually "pesticide russeting," caused by improper pesticide use or excessive pressure when spraying pesticides. There is also a type called "water russeting," mainly caused by poor environmental conditions, damp and rainy weather, insufficient light, and mold parasitizing the fruit surface. The occurrence of fruit russeting is related to many factors in cultivation. Such as variety, strain differences
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