1、The effect of sulfur

In order to investigate elemental composition of celery, and to quantify the influence of sulfur-containing N-fertilizers on the trace element uptake, a field trial with celery was carried out on marsh soil polluted with municipal wastes.

2、Effect of nitrogen fertilizers on celery volatiles

Centelloside accumulation in leaves of Centella asiatica is determined by resource partitioning between primary and secondary metabolism while influenced by supply levels of either nitrogen, phosphorus or potassium.

3、Nitrogen Balance and Loss in a Greenhouse Vegetable System in Southeastern China

High rates of fertilizer nitrogen (N) are applied in greenhouse vegetable fields in southeastern China to maximize production; however, the N budgets of such intensive vegetable production remain to be explored.

Celery in the Garden

Side dress with nitrogen at 1⁄4 cup (21-0-0) per 10 feet of row at 4 and 8 weeks after transplanting. Weeds: Due to celery’s slow growth and small root system, it does not compete well with weeds. Frequent, shallow cultivation will control weeds and keep the soil surface loose.

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Depending on mineral nitrogen fertilizer application almost associated with high accumulation of nitrate, especially in leafy vegetables. So nitrate residues in leafy vegetables became one of the most critical issues.

On the utility of nitrogen in leaves

Leaves of high photosynthetic ability are seen to be thin and short-lived with a large amount of nitrogen per unit mass. Thick, long-lived leaves by contrast have much less nitrogen per unit mass and much smaller photosynthetic ability.

Nitrogen remobilization during leaf senescence: lessons from Arabidopsis to crops

Because the major source of proteins in the leaf is localized in the chloroplast (Peoples and Dalling, 1988), studies performed on proteolysis and nitrogen remobilization during leaf senescence have mainly considered chloroplastic proteins and especially RuBisCO as substrates for remobilization.

Effect of different organic fertilizers application on growth and environmental risk of nitrate under a vegetable field

Results showed that organic fertilizers significantly increased vegetable yield and quality, but with inappropriate application may cause serious environmental risk such as nitrate pollution.

Effects of Nitrogen Application on Chlorophyll Fluorescence Parameters and Leaf Gas Exchange in Naked Oat

Initial quantum yield (α) was decreased with 24 kg N ha −1 as basal fertilizer and 56 kg N ha −1 as top dressing fertilizer.

Effect of potassium sources and rates on plant growth, mineral absorption, and the incidence of tip burn in cabbage, celery, and lettuce

Increasing the K concentration in the nutrient solution greatly affected the growth and yield of cabbage, celery and lettuce, especially the yield quantity, and the Ca and Mg content of plant tissues.

Nitrogen fertilizer is a common agricultural product primarily composed of nitrogen. In agriculture, it is widely used during the cultivation of various crops to provide essential nutrients for plant growth. improper use of nitrogen fertilizer can harm plants. A typical issue caused by misuse is the burning of celery leaves.

To understand this problem, it is crucial to grasp how nitrogen fertilizer works. Nitrogen, a key element in these fertilizers, is vital for photosynthesis, protein synthesis, and cell division in plants. Proper application of nitrogen fertilizers significantly improves crop yield and quality.

excessive or improper use of nitrogen fertilizer can lead to several issues:

1. Root Burning: Nitrogen fertilizers evaporate easily, raising soil temperature and disrupting root respiration. This leads to oxygen deprivation, damaged roots, and hindered plant growth. Symptoms include yellowing, wilting, and even death in severe cases.

2. Leaf Burning: When nitrogen fertilizer combines with water, it produces ammonia gas, which is toxic to both plants and animals. Ammonia can directly burn or kill plant leaves.

3. Soil Acidification: Excessive long-term use of nitrogen fertilizers accelerates organic matter decomposition, causing soil acidification. This reduces nutrient absorption, lowering crop yield and quality.

4. Salt Accumulation: Nitrogen fertilizers contain high levels of potassium, sodium, and other ions. Overuse leads to salt buildup in the soil, further stressing plant growth.

To prevent celery leaf burning and other issues, follow these practices:

1. Control Dosage: Apply nitrogen fertilizer based on crop needs and soil conditions. For most vegetables, 5-10 kg of urea per mu (approx. 0.067 hectares) is sufficient. Excessive use increases costs and risks.

2. Balanced Fertilization: Combine nitrogen with phosphorus, potassium, and organic fertilizers to improve efficiency. Mixing nitrogen fertilizers with organic matter enhances soil structure and root development.

3. Timing Matters: Fertilize in early morning or evening to avoid direct sunlight and heat. Water immediately after application to aid absorption.

4. Soil Management: Deep ploughing and organic amendments improve soil structure, water retention, and fertility, reducing nitrogen loss and environmental pollution.

5. Monitor Soil pH: Regularly test soil acidity and lime if necessary to maintain optimal growth conditions.

while nitrogen fertilizer is essential for agriculture, careful application, balanced nutrition, and proper timing are critical to avoiding damage to crops like celery. Responsible use ensures healthy plant growth and sustainable farming.