1、Optimized Nitrogen Fertilizer Rate Can Increase Yield and Nitrogen Use

Intensive vegetable production has been characterized by high nitrogen (N) fertilizer input in southwest China. Optimizing the N fertilizer rate is the basis for the optimal management of regional N fertilizer.

2、Identifying the critical nitrogen fertilizer rate for optimum yield and

Abstract Nitrate leaching caused by overusing or misusing nitrogen (N) fertilizers in field vegetable cropping systems in China is a leading contributor to nitrate contamination of groundwater.

3、Effect of Different Fertilizations on the Plant

In general, all fertilizers raised the PAN below the soil 60–100 cm which indicates their potential for nitrate leaching (NL). Nitrogen (N) is the essential macro-nutrient for plants and is thereby added to agricultural soil to enhance crop production.

Influences of nitrogen fertilizer application rates on radish yield

The results indicated that the fresh and dry weight yields of radish increased with the increase of NFAR at the range of 0.099 to 0.180 g N·kg −1 soil, decreased at 0.207 g N·kg −1 soil, and accordingly there was a significant quadratic relationship between the fresh and dry weight yields of radish and the NFAR.

Chinese cabbage radish's fertilizer requirement law and fertilization

At this time, Chinese cabbage is in a period of rapid growth, and it is necessary to increase the amount of topdressing fertilizer, mainly nitrogen fertilizer, and apply N fertilizer and P and K fertilizers, or regularly apply water manure.

Effects of different nitrogen fertilizer applications on growth of

The growth parameters of Chinese cabbage treated by organic fertilizers was better than those of the inorganic fertilizers. Additionally, it was found that their co-application was more efficient.

Optimization of application of nitrogen fertilizers to increase the

The present study aimed to investigate the combined effect of nitrogen fertilizer and biochar amendment on the growth of Chinese cabbage including its glucosinolates (GSLs) functional...

Growth of Chinese cabbage and nitrogen application

In the past, Chinese cabbage was generally sold as a single crop and was heavy and large, but nowadays, when it is usually sold in two to four portions, it is common to harvest a large crop of 2-3 kg/plant.

Effects of nitrogen application rate and topdressing times on yield and

Zhang S, Gao P, Tong Y, et al. Overcoming nitrogen fertilizer over-use through technical and advisory approaches: A case study from Shaanxi Province, Northwest China.

Interactive effects of irrigation and nitrogen fertilizer on yield

The aim of this study was to evaluate the interactive effect of irrigation and nitrogen fertilization on yield, nitrogen (N) uptake, and recovery of two successive Chinese cabbage (Brassica campestris L.) crops and to assess the residue effects of N on the 2nd season crop under greenhouse conditions. 15 N-labeled urea was administered to pot ...

Can Nitrogen Fertilizer Be Used for Chinese Cabbage and Radish? Why?

Chinese cabbage (Brassica rapa subsp. pekinensis) and radish (Raphanus sativus) are common vegetables with distinct fertilization needs. Nitrogen fertilizer, one of the three primary macronutrients required by plants, plays a critical role in promoting leaf growth. whether nitrogen fertilizer can be used for these crops depends on their specific growth stages and soil conditions.

Growth Characteristics of Chinese Cabbage

Chinese cabbage is a heavy-feeding crop with growth stages including germination, seedling, rosette, heading, and maturity. Its nitrogen requirements vary by stage:

• Key demand periods: During the rosette and heading stages, adequate nitrogen promotes leaf development and increases yield.
• Risks of overuse: Excessive nitrogen at other stages causes excessive vegetative growth ("legginess"), reducing quality. Fertilization should align with growth phases.

Growth Characteristics of Radish

Radish prefers phosphorus and tolerates poor soils, with lower overall nitrogen demands:

• Early growth: Minimal nitrogen is needed.
• Later growth: Nitrogen requirements gradually increase, but overapplication leads to excessive foliage growth at the expense of root development, harming yield and quality.

Principles for Nitrogen Fertilizer Use

1. Need-Based Application:

   • Apply nitrogen during critical stages (e.g., rosette/heading for cabbage; moderate use for radishes).
   • Avoid excess outside these periods.

2. Balanced Fertilization:

   • Coordinate nitrogen with phosphorus, potassium, and micronutrients to ensure balanced nutrition.

3. Optimal Methods:

   • Use trench, hole, or foliar spraying to improve efficiency and reduce environmental impact.

Both Chinese cabbage and radish can benefit from nitrogen fertilizer, but its use must be tailored to growth stages and soil conditions. For cabbage, focus on nitrogen during rosette and heading stages; for radish, apply cautiously to avoid hindering root development. Prioritize balanced fertilization and scientific application methods to enhance yields, quality, and environmental sustainability.