How Do Winter Tomatoes Quickly Colorize
The optimum temperature for regulating the greenhouse temperature is to balance the temperature of tomato fruits with 24-25°C, the maximum temperature is not more than 28°C, and the night temperature control is not less than 12°C. The suitable temperature of the greenhouse helps to promote the red ripeness of the fruit. It not only matures quickly but also has good coloring and good fruit quality. Therefore, in management, the temperature of the greenhouse should be prevented from falling or falling suddenly, and the air should be placed in a top wind. Cold air should not be blown directly into the shed from the bottom.
The base leaves should not be excessively removed on the basis of the yellow and old diseased leaves. If the leaves around the fruit are too large (large leaf type) and dense, after appropriate removal of 1-2 slices, the remaining functional leaves must be preserved so that they Photosynthesis is good and not closed.
The management of water and fertilizer should be reasonable. The fruit of tomato must enter the mature coloring period. Do not use large amounts of water and fertilizers. Avoid large amounts of topdressing nitrogen fertilizer. Therefore, in the management of fertilizers and waters, it is necessary to apply watering at the appropriate time during the fruit expansion period, and to increase the application of potash fertilizer. Water should be poured in the expanded fruit water, and the soil should be kept moist during the ripening period of tomato growth. If the plant has deferred fertilizer during the mature coloring period, it can be sprayed with foliar fertilizer containing trace elements.
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