Tomato pods are a kind of rot and rot, resulting in a variety of etiology of tomato peel, the most important of which is the imbalance of fertilization, caused by low nitrogen and high potassium, excessive application of nitrogen fertilizer, potassium is relatively small The main cause of tomato green peel. After the fruit enters its fruitful stage, tomato suffers from bad weather (low temperature, weak light), or unreasonable fertilization (partial application of nitrogen fertilizer), which can easily lead to green peel. The following measures can be taken to prevent:
With the addition of organic fertilizers and the use of formula fertilization techniques, ammonium fertilizers should not be used to adjust the proportion of nitrogen, phosphorus, and potassium in the soil, and to promote the absorption and utilization of potassium by plants. This is the most important measure to prevent tomato green peel.
Extend the visible time of vegetables. When the fruit enters the color-changing period, the lower leaves and nearby leaves of the color-changing ear should be removed, and the increase of light can reduce the occurrence of blue peel.
Robust roots, enhance plant resistance. The foliar uses foliar fertilizers containing various elements (boron, calcium, magnesium, iron, and zinc), of which the amino acid type is appropriate, which promotes black-green leaves, enhances photosynthesis, and increases the absorption of boron and calcium. Green peel, cracked fruit and so on.
To strictly control the temperature, the daytime temperature should be controlled at 25°C-30°C, the nighttime temperature should be maintained at 14°C-16°C, and the temperature difference between day and night should not exceed 15°C.
Balance the number of plants set fruit, can not be too much fruit set or fruit knot too low.
Control point flower hormone concentration, can not be too high, with anther point should be timely supplement fertilizer.
For greenhouses that have already taken place, high-potassium foliar fertilizers and chitin can be sprayed to relieve symptoms.
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