Detailed Explanation of Key Points for Efficient Fertilization Techniques for Celery
Celery is suitable for growing in a cool and humid environment and has strong cold tolerance. However, celery's roots are not deeply distributed and the roots' nutrient absorption capacity is relatively weak, so before planting, the soil must be well selected and fertilization work must also be done well to ensure that the nutrients needed for celery growth are met. Below is an introduction to efficient fertilization techniques for celery!
I. Nutrient Requirement Patterns
The growth of celery has a high demand for nutrients, among which the absorption of elements such as nitrogen, phosphorus, and potassium accounts for a large proportion. During growth, the demand for nitrogen is the highest, followed by potassium, and finally phosphate fertilizer. Celery also has a relatively large demand for boron. When the soil is deficient in boron and water shortage and low temperature inhibit celery's nutrient absorption, it is very easy to cause cracking of celery petioles, affecting celery yield and reducing quality. Then, appropriately spraying Zhuangjingling can promote the growth of celery stems, enhance leaf quality, improve color, increase aroma, and improve celery's disease resistance.
II. Fertilization Techniques
1. Apply sufficient base fertilizer
Because celery's roots have a relatively strong absorption capacity and the planting density is high, sufficient base fertilizer must be applied before planting. Base fertilizer is very important for the growth of celery seedlings. If the base fertilizer is insufficient, celery seedlings will have weak growth capacity, dull and lusterless leaves, wilting and weakness, and gradual death. Attention should be paid to the amount of base fertilizer and the nutrient ratio of the fertilizer, mainly using decomposed farmyard manure, then combined with an appropriate amount of fertilizers such as superphosphate. If the soil is deficient in boron, then an appropriate amount of borax should also be added.
2. Seedling fertilizer
Celery is generally planted by raising seedlings and transplanting. Before raising seedlings, nutrient soil must first be prepared. Celery's nutrient soil is mainly based on garden soil and decomposed farmyard manure, then a small amount of superphosphate is added, and then sowing is carried out for seedling raising. When celery seedlings have emerged for about one month, nitrogen fertilizer should be appropriately topdressed according to soil fertility and the growth of celery seedlings to enhance seedling growth capacity. Pay attention to the amount and do not apply too much, to prevent excessive fertilizer from causing fertilizer damage to celery.
3. Timely topdressing
After celery is planted, topdressing should be carried out in time during the seedling recovery period, because celery grows very slowly during the seedling recovery period. Therefore, in order to promote the growth of celery roots and leaves, seedling-promoting fertilizer should be applied in time. Then, when celery enters the vigorous growth period, the leaf area of celery will gradually expand, the growth rate will further accelerate, and its nutrient demand will also greatly increase. At this time, topdressing should also be carried out in time. During the entire growth period of celery, topdressing should be carried out at least about 3 times, but attention must be paid to the amount each time. Do not fertilize blindly, so as to avoid affecting celery growth.
When fertilizing, pay attention to the amount of nitrogen and potassium fertilizers. Excessive nitrogen and potassium fertilizers will affect celery's absorption of elements such as calcium and boron, causing the color of young parts such as celery leaves to darken, and in severe cases, death. This situation is even more serious, especially when there is water shortage and low temperature. Therefore, when fertilizing, be sure to pay attention to the amount of nitrogen and potassium fertilizers to prevent harm to celery.
The above is Tuliu.com's introduction to celery fertilization techniques. Celery fertilization should be sufficient but not excessive, otherwise fertilizer damage may occur, which is not conducive to celery growth.