Eggplant is an annual herbaceous plant with a long growth cycle, generally round, elliptical or pear-shaped, and nutritious. It is a good choice for disease prevention and physical recovery. Eggplant is also a fertilizer crop, and there is a great demand for fertilizers such as nitrogen, phosphorus, potassium, calcium, zinc, and iron. Especially during fruit enlargement, fruit growth is sub-healthy.
First, eggplant fruit swelling period sub-health (physiological disease) symptoms 1, stalemate. As a result of unfertilized or poorly fertilized flowers, resulting in a result of monosomy, the internal hormone content of the fruit is insufficient, the nutrition cannot be supplied to the fruit in large quantities, and the fruit enlargement is limited and a stale fruit is produced. In addition, environmental conditions are poor, assimilation is hindered, photosynthetic products are consumed in the growth of stems and leaves, transport of nutrients into the fruit is inhibited, and fruit development is also poor, and the quality is hard and small.
2, split eggplant. Split eggplant split and split two. The fruit cracking is caused mainly by the damage of the tea plant. The adult insects and larvae of the tea plant can damage the growing point of the eggplant and the tender stems and twigs, and can also harm the fruit. After the fruit is damaged, the skin becomes thicker and rougher, while the internal placenta tissue is still developing, causing the endothelium to be not long, causing the peel to crack and the pulp seeds to be bare. The palpebral fissure is mainly caused by sudden rainfall or irrigation after continuous drought in the fruit expansion stage, and the skin growth rate is slower than that in the placenta tissue.
3, double eggplant. This type of eggplant is generally a carpel-like deformed eggplant. The main reason for the formation is that the total amount of fertilizer input is too high, or the concentration of sprayed plant growth regulators is too high, or the flowering period encounters low temperatures.
4, the fruit color is not uniform. Solanaceous fruit coloration poor Solanum fruit coloring, lack of luster, known as poor coloring fruit. Inadequate water supply, excessively prosperous leaves and shading, and inadequate fruit light irradiation can easily cause poor fruit coloration. If there is less ultraviolet light transmitted through the protected area, there will be more colored defects. According to the study, applying ammonium sulfate fertilizer can prevent this phenomenon, spraying sugar can also increase the color of eggplant.
In summary, the appearance of sub-healthy symptoms in eggplant during fruit enlargement is caused by water, fertilizer, gas, heat and many other factors. The grower should consider it more easily when judging the appearance of various diseases or diseases in eggplant. Prevention is The Lord, the combination of prevention and treatment, focuses on the prevention of eggplant fertilization.
1, the use of scientific methods of fertilization. Vegetable growers generally adopt the method of fertilizing the eggplant with water fertilization. Although this traditional method is simple and easy, the disadvantages are large, and the fertilizer is flushed with water, which can easily cause unnecessary waste of eggplant fertilizer, and is particularly volatile in the summer, such as carbonic acid. Ammonium hydroxide not only reduces the effect of fertilizer but also may cause eggplant ammonia poisoning. Therefore, it is better to fertilize the saplings in the annular groove, and it will not cause burning of roots and burning of seedlings. It will also reduce the amount of chemical fertilizers, release nutrients in the soil, improve the soil structure, increase the nutrients needed for the fruit, advance the fruit ripening period, and reduce the fruit loss. Defective results, improve product quality, and ultimately significantly increase economic efficiency.
2, scientific and rational fertilization. In the flowering period, eggplant can be topdressed with low-nitrogen-high-phosphorus-low-potassium fertilizer 15-20 kg with a golden baby microbial fertilizer 1 to 2 kg per mu, 3 to 4 times the water, perfused in the roots, foliar spray boron fertilizer, It can protect flowers and preserve fruits, supplement the phosphorus needed for flowering. The flowers are bright in color, full of flower buds, and the roots are well developed; in the young fruit period, in order to prevent eggplants from appearing physiological diseases such as fruit stale, cracked fruit and malformed fruit during the young fruit period, Appropriate foliar spray of calcium fertilizer and boron fertilizer, combined with the microbial fertilizer, can extend the duration of foliar fertilizer. Crushing and applying 15-20 kg of high-nitrogen and high-potassium compound fertilizer, combined with 1 to 2 kg of golden babe microbial fertilizer, 10 to 15 days; fruit enlargement period, eggplant fertilization requires more nitrogen and potassium, followed by phosphorus. Every acre topdressing high-nitrogen and high-potassium compound fertilizer is no less than 15 to 20 kilograms of auxiliary golden babe microbial fungus fertilizer 1 to 2 kilograms, ring groove application, can promote fruit enlargement and coloring, enhance plant disease resistance and prolong Harvest period. If there is a shortage of potassium in the soil, topdressing potassium fertilizer should be applied. Urea use per mus should generally be controlled within 30 kilograms. The amount used is too large. After the plants meet their needs, nutrient loss will occur. Details can be consulted: Beijing Huaxia Kangyuan Technology Co., Ltd. Tel Free Hotline Taobao Buy Click
Tip: eggplant to prevent fruit sub-health phenomenon, remember that you can not use high concentrations of residual chemical fertilizers, pay attention to ecological and environmental protection, fruit health and green.
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