Autumn cherry tomato rapid coloring measures
1, strictly regulate the temperature. Too much or too little temperature during tomato coloring can affect the formation of lycopene. Studies have shown that the optimal temperature for the formation of lycopene is 19-24°C, and a shed temperature lower than 14°C or higher than 32°C will affect the normal production of lycopene. Therefore, the current temperature control of vegetable farmers should be 22-26 °C during the day, 15-20 °C at night is appropriate.
2, to ensure adequate lighting. Remove dust and contaminants from the shed film in time to ensure sufficient light conditions and promote fruit coloring. After the grasshopper has been applied, it is necessary to expel as soon as possible the late cover grass to increase the lighting time of the tomato fruit.
3, increase ventilation and light transmission. Plant density should not be too large, we must ensure that the shed ventilation and light transmission is good, so that the chance of plant appearance of brown fruit will be reduced. Through the timely removal of excess branches, old leaves, diseased leaves, residual leaves and hanging reflective screens on the back wall, etc. to increase the lighting time of fruit in the shed and promote fruit coloring.
4, balanced fertilization. Unreasonable application of fertilizers will seriously affect the coloration of tomato fruits. For example, if there is too much nitrogen, the growth of the plants will be too strong. If there is insufficient water, then green shoulders will occur; if there is a lack of nitrogen, the shoulders will be yellow; when potassium is lacking, The shoulders appear yellow-green and the vascular bundles of the heart and the fruit are lignified; in the absence of boron, the fruit shoulder remains green with necrotic spots. Prevention and control measures: Timely supplement of nitrogen, phosphorus and potassium fertilizers, one kilogram of borax to supplement boron fertilizer.
In addition, from the beginning to the end of the current period, the fruit of each ear must be top-dressed in an inflated period, and full-nutrition fully water-soluble compound fertilizer (15:15:30 or 20:10:30) can be used for flushing. Fully supplemented with nutrients to avoid the occurrence of poor fruit coloration due to imbalance in nutrient supply.
5, small water pouring. The soil should not be excessively dry. At this stage, in fine weather, depending on soil moisture, water can be poured every 10 days or so.
6, spray surface fertilizer. Can spray shellfish or sea power or boron-containing composite fertilizer, can promote uniform coloring.
Bagged Solid Beverage,Bagged Solid Powder,Bagged Grass Powder,Organic Grass Powder In Bags
Hengshui Shanzhi Health Drink Co., Ltd , https://www.grasspowder-sz.com