Winter, affected by the environment, low temperature, little light and humidity, greenhouse vegetables are prone to physiological diseases, once the disease occurs, it has a great impact on the normal growth of vegetables, and it is also not conducive to high yield and good yield. Especially for nightshade fruits and vegetables in the fruiting period, the occurrence of hollow fruits, soft fruits and other phenomena often has a great impact on the yield and quality of vegetables, which is not conducive to increasing economic income.
1. Empty fruit
Hollow fruit is not unfamiliar to everyone, the fruit that appears hollow between the peel and the flesh is called the hollow fruit, from the outside, the surface of the fruit has a prismatic protrusion, the shape is not full, the peel flesh is separated, and the fruit is hollow. Although some fruits cannot see obvious edges on the surface, but when the flesh of the fruit is cut, you can still see the obvious hollowness, and the commerciality of the fruit is greatly reduced, which is not conducive to high yield.
The production of hollow fruit, the reason is more, winter or early spring cloudy days, insufficient light, affecting photosynthesis, insufficient fruit nutrients will produce a large number of hollow fruit; during flowering and fruit setting, if the shed temperature exceeds 36 ° C for a long time, pollen fertilization is poor, affecting the normal growth of fruit; insufficient water and fertilizer during fruit setting, nutrition can not meet the expansion of demand; unreasonable concentration of flowers, will also lead to the formation of hollow fruit.
2. Soft fruit
According to market feedback, the current tomato purchase price is relatively high customers are mainly in the southern big cities, the transportation distance is long, the time is long, the temperature is high, so the hardness of the fruit is also relatively high, the fruit is slightly softer, even if it is transported to the local area, the shelf life is relatively short, which is not conducive to meeting the market demand, so in recent years, experienced vegetable farmers in the selection of varieties, generally require and like the hardness of the varieties.
In addition to the basic factor of variety, daily management cannot be ignored. Many varieties of the first three ears of fruit hardness is very high, to the fourth panicle, often appear the problem of fruit softness, can not sell high prices, mainly because of insufficient calcium. In the early stage of growth, the root system continues to expand, and the absorption capacity of calcium is relatively strong, but in the later stage, the number of new roots is reduced, the absorption of calcium fertilizer is naturally less, and the fruit is easy to become soft.
3, vegetable calcium supplementation, from the seedling stage
Plants in the process of differentiation, need sufficient calcium, once lacking, the first impact is the root system, but the root system is deep underground, generally can not see, so will not be replenished in time, until the calcium deficiency is serious, cucumber will appear rotten dragon head situation. If the calcium fertilizer is sufficient at the seedling stage, the root growth is accelerated, the growth point differentiation is fast, the root system is strong, the stem is thick, and the fruit is expanded quickly, which is more conducive to high yield.
Therefore, it is recommended that everyone pay attention to timely supplementation of calcium fertilizer from the seedling stage, and apply chelated calcium fertilizer in a timely manner to promote better absorption of plants and reduce the appearance of empty fruits and soft fruits.