Efficient fertilization technology of celery!

Celery is suitable to grow in a cool and humid environment, with strong cold tolerance, but the root distribution of celery is not deep, and the nutrient absorption capacity of the root is weak, so we should choose a good soil before planting, and we also need to do a good job of fertilization. to ensure to meet the nutrients needed for celery growth, here is to introduce the efficient fertilization technology of celery!

First, the law of fertilizer demand

The growth of celery has a high demand for nutrition, in which the absorption of elements such as nitrogen, phosphorus and potassium accounts for a large proportion, and the demand for nitrogen is the highest in growth, followed by potassium and finally phosphate fertilizer, and the demand for boron in celery is also relatively high. when soil boron deficiency and water deficiency inhibit celery nutrient absorption at low temperature, it is easy to cause celery petiole cracking, affect celery yield and reduce quality, and then properly spray Zhuangxuling. It can promote the stem growth of celery, enhance the leaf quality, improve the color, aroma, and improve the disease resistance of celery.

2. Fertilization technology

1. Apply sufficient base fertilizer

Because the root absorptive capacity of celery is relatively large, and the planting density is irrigated, we must apply sufficient base fertilizer before planting. The base fertilizer is very important for the growth of celery seedlings. If the base fertilizer is insufficient, it will lead to weak growth ability of celery seedlings, bleak leaves, dull leaves, and gradual death. Attention should be paid to the amount of base fertilizer and the proportion of fertilizer nutrition, mainly rotten farm manure, and then combined with appropriate amounts of fertilizers such as superphosphate. If boron in the soil is insufficient, borax should be added properly.

two。 Seedling fattening

Generally, celery is planted by the method of raising seedlings and transplanting. Before raising seedlings, the nutritious soil of celery should be prepared first. The nutritive soil of celery is mainly composed of vegetable garden soil and mature agricultural machinery fertilizer, then a small amount of calcium superphosphate is added, and then sown to raise seedlings. When celery seedlings are unearthed for about a month, nitrogen fertilizer should be applied properly according to soil fertility and the growth of celery seedlings to enhance the growth ability of seedlings. Prevent too much fertilizer from causing fertilizer damage to celery.

3. Timely topdressing

Fertilizer should be applied in time during the slow seedling period after celery planting, because the growth rate of celery in the slow seedling stage is very slow, so in order to promote the growth of celery roots and leaves, it is necessary to apply seedling fertilizer in time, and then when celery enters the peak growth period, the leaf area of celery will gradually expand, the growth rate will be further accelerated, and its nutritional demand will also be greatly increased. At this time, it is also necessary to topdressing in time, in the whole growth period of celery. Topdressing at least 3 times, but all need to pay attention to the amount, do not apply fertilizer blindly to avoid affecting the growth of celery.

When fertilizing, we should pay attention to the amount of nitrogen and potassium fertilizer, too much nitrogen and potassium fertilizer will affect the celery absorption of calcium and boron and other elements, resulting in celery leaves and other young parts of the color become darker, serious death, especially in the lack of water, low temperature when the situation is more serious, so in fertilization must pay attention to the amount of nitrogen and potassium fertilizer to prevent damage to celery.

The above is the introduction of celery fertilization technology of soil flow net, celery fertilization should be both sufficient and not excessive, otherwise it may produce fertilizer damage, which is not conducive to the growth of celery.