In recent years, many suburban agricultural areas have adjusted the planting structure and become the main vegetable producing areas. However, even if the same vegetables are grown in the same production area, the quality and benefits will be “a few happy ones”. This issue provides readers with tips on how to control physiological barriers to vegetables, break through yields and quality bottlenecks.

eggplant

Balance supplements, prevent physiological disorders

Young leaves of eggplant are white and dead, lacking seedlings and ridges, leaves are early scorched or curled, buds are largely shed, and the skin is thick and rough. These symptoms are usually caused by physiological disorders. Physiological disorders are mainly caused by ecological imbalances, such as nutrients, water, and temperature disorders.

Formula fertilization must be done well, balanced fertilizer, and staged fertilization. Spring aubergine has a longer growth period and requires a large amount of fertilizer. It must be applied rationally. It should be based on decomposed organic fertilizer, and a large proportion of elements such as NPK. According to the research of the agricultural research department, the ratio of demand for NPK to NPK is 1:0.3:1.3. The soil texture varies from place to place, and the formula can be adjusted according to local conditions. For the application of base fertilizer, 400-5000 kg of farmyard manure can be applied per mu, or 250-400 kg of commercial organic fertilizer, and 50 kg of high-content NPK compound fertilizer.

Topdressing is generally 3 times, and the rooting water should be poured when the seedlings are fixed. The first top dressing is in the initial stage of entering the eggplant, about 15 kg of urea per acre, and watering while fertilizing, so that it can be absorbed quickly. The second top dressing is applied to the ridges of the eggplant during the expansion period of the eggplant, applying 25 to 30 kg of ternary compound fertilizer per acre. When entering the four-door bucket eggplant expansion period, apply 35 to 40 kilograms of ternary compound fertilizer per acre, and then immediately water the water to adjust the fertilizer and improve the fertilizer utilization rate. For the soil-poor and boron-deficient fields, 0.2% to 0.5% potassium dihydrogen phosphate solution and 0.1% to 0.2% Suile boron can be sprayed, either single spray or mixed spray.

Shallot

Fertilization drying field rim planting

For plots where scallions are grown, rims should be carefully organized. For some fields where the scallions are slow to develop, it is necessary to adjust the cultivation of leafy vegetables, beans, and melons as soon as possible, and change them once every 3 to 4 years. Before being planted as a rice field, it must be ploughed, sun-dried, and soiled before planting.

Regardless of the soil in front of the soil, the fertilizer should be applied deeper 10 to 15 days before the transplanting of the shallot. The fertilizer structure should be mainly based on organic fertilizer and supplemented with inorganic fertilizer. The ratio of nitrogen, phosphorus and potassium in the general formula fertilization is 1:0.38:1.34. In the specific operation, 2500-3000 kg of decomposed organic fertilizer or 50-75 kg of bio-organic compound fertilizer can be applied per mu. If only organic fertilizer is applied, it should be applied with 50-60 kg of compound fertilizer of 17-8-17, and appropriate amount of boron, sulfur, magnesium and other trace elements should be applied as appropriate to prevent yellow leaf, heart rot and growth point necrosis. By referring to these formulations, it is possible to avoid some physiological diseases of the chives.

celery

Adjusting soil and fertilizer water during the whole growth period

The celery must not be deficient in the whole growth period, and the good fertilizer must have better soil as the carrier to improve the fertilizer supply capacity. The sandy soil with poor water retention and the soil with too heavy weight should not be planted. The roots of celery are more, but the roots are not deep, and the ability to absorb fertilizer is weak. Therefore, in order to capture the high yield of celery, it is necessary to increase the application of organic fertilizer.

20 to 30 days before sowing or transplanting, 4000-5000 kg of fertilized soil fertilizer should be applied per mu, or 150-200 kg of commercial organic fertilizer. For the boron-deficient field, borax should be applied 1~1.5 kg, or Force boron 0.4 ~ 0.5 kg. At the same time, it should be accompanied by 40 kg of phosphate fertilizer and 10-15 kg of potash. After celery is fixed, the seedlings are topdressed 3 to 4 times according to the seedling condition. When the petiole is initially hollow, the nitrogen fertilizer should be applied. When the petiole begins to appear brown crack, spray the boron fertilizer in time, 0.2% borax or 0.1%~0.15%. Speed ​​Le Boron can be.

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