What is the reason for the poor color and sweetness of muskmelon? That is the misunderstanding of pruning and water and fertilizer management. The main reasons are as follows:
The reason why muskmelon is poor in color and not sweet
1. Improper variety selection
The sweetness of muskmelon is related to species, so we must choose high-quality varieties when planting muskmelon.
2. Overweight pruning
The proportion of strong-aged leaves is too small, the supply of nutrients is insufficient during the period of fruit ripening to sugar accumulation, the plants are prematurely aging, the leaves are aging, weaken or lose the ability to make nutrients, and the fruit skin is crisp to replace the leaves to make nutrients to maintain their own development. The amount of chlorophyll synthesized on the surface is greater than the amount of decomposition, so that the peel cells contain a large amount of chlorophyll, which cannot turn yellow, so the color is poor and the sweetness is also poor.
3. The number of leaves retained by the whole plant is too small
The fruit is basically exposed, and most of the fruit surface is exposed to direct light, which is easy to cause the temperature of the fruit to rise and inhibit the synthesis of yellow carotenoids. Direct light is good for green chlorophyll synthesis. The scattered light is conducive to the synthesis of yellow carotenoids. Since shady berries receive more scattered light, they first show the yellow color of carotenoids. Therefore, the fruits covered by the leaves are colored well.
4. Improper application of water and fertilizer
In the late stage of muskmelon fruit, that is, 10 days before the market, it is not particularly dry, do not water, watering will significantly reduce the sweetness of muskmelon. During the growth of muskmelon, special attention should be paid to the application of potassium fertilizer, which has a significant effect on improving the quality of muskmelon. To control nitrogen fertilizer, excessive application of nitrogen fertilizer will not only reduce the sweetness of muskmelon, but also cause excessive accumulation of nitrite, which is harmful to the human body. , Phosphorus, potassium combined application.
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