1、Effects of combined organic fertilizer and chemical fertilizer
Abstract: We examined the changes in soil enzyme activities and cultivable microorganisms, as well as yield and quality of Chinese cabbage with different maturity periods (early maturing and late maturing) under four fertilization treatments with different proportions of chemical fertilizer nitrogen (urea) and organic fertilizer nitrogen (organi...
2、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.
3、Interactive effects of N fertilizer source and timing of fertilization
Specific δ15 N signals of basal N inputs were detected in outer cabbage parts formed in the early growth stage, while those of additional N inputs were detected in inner cabbage parts formed in the latter growth stage.
Effects of nitrogen application rate and topdressing times on yield and
For this sake, multiple N applications are recommended to meet the N demand of Chinese cab-bage, especially at later growth stages when more N is required for plant growth.
Effects of different nitrogen fertilizer applications on growth of
Effects of different nitrogen fertilizer applications on growth of Chinese cabbage (Brassica rapa L. ssp. pekinensis)
Impact of organic liquid fertilizer on plant growth of Chinese cabbage
We compared its effects with chemical (CLF) and fermented (FLM) liquid fertilizers on Chinese cabbage (Brassica rapa subsp. pekinensis). We aimed to determine how organic bio-liquid...
(PDF) Effects of nitrogen application rate and topdressing times on
In this study, a field experiment was carried out to investigate the N application rate and times on Chinese cabbage yield and quality, N use efficiency, soil nitrate-N concentration, and...
A Sustainable Way of Fertilizer Recommendation Based on Yield Response
in China. Chinese cabbage (Brassica chinensis L.) is one of the most common vegetables with a wide planting area. However, there are problems such as the excessive and blind application of chemical fertilizers, which bring about the increase of planting cost and the risk of environmental pollution. So, it is urgent to improve fertil
IMPROVEMENT OF YIELD AND QUALITY OF CHINESE CABBAGE (BRASSICA RAPA
The results showed that with increasing BGS dosage during all growth phases of Chinese cabbage, soil fertility increases linearly with significantly higher soil organic matter, soil enzymes (sucrose, alkaline phosphatase, and catalase) and nutrients (N, P, K, and ferrous ion) status.
Construction and verification of Chinese cabbage Nutrient Expert system
We have developed an intelligent nutrient expert recommendation system for fertilizer application in Chinese cabbage production, based on yield response and agronomic efficiency.
Chinese cabbage is a common vegetable whose growth requires sufficient nutrients. Applying appropriate chemical fertilizers during its early stage can promote development, improve yield, and enhance quality. Below are recommended fertilizer types and application methods for the early growth phase of Chinese cabbage:
1. Nitrogen Fertilizer (N)
Nitrogen is a critical macronutrient for plant growth, particularly for leaf development and photosynthesis. It increases leaf area, boosts yield, and strengthens pest/disease resistance.
Application Method: Apply high-nitrogen compound fertilizers or single-nutrient sources like urea or ammonium sulfate before transplanting or within 2-3 weeks after transplanting. The typical dosage is 10-15 kg per mu (adjust based on soil tests and product guidelines).
2. Phosphate Fertilizer (P)
Phosphorus, a key secondary nutrient, supports root development, flower bud differentiation, and fruit quality. It enhances root growth, stress resistance, and overall productivity.
Application Method: Use high-phosphorus compound fertilizers or single-nutrient sources like superphosphate or diammonium phosphate 4-6 weeks after transplanting. Apply 10-15 kg per mu (calibrated to soil conditions and label recommendations).
3. Potassium Fertilizer (K)
Potassium, an essential micronutrient, aids photosynthesis, cell division, and disease resistance. It improves taste, sweetness, and overall quality.
Application Method: Apply high-potassium compound fertilizers or single-nutrient sources like potassium sulfate or potassium chloride 7-9 weeks after transplanting. Dosage: 10-15 kg per mu (adjust based on soil analysis and product specs).
Additional Tips:
- Compound/Organic Fertilizers: Complement chemical fertilizers with organic options (e.g., compost) or NPK blends based on soil needs and growth stages.
- Follow "Small Doses, Frequent Applications": Avoid overuse to prevent soil salinization and nutrient imbalance.
Key Considerations:
- Soil Testing: Tailor fertilizer amounts and timing to soil test results.
- Proper Application: Dissolve fertilizers in water and apply around roots to avoid burning young plants.
- Watering: Irrigate after fertilization to aid absorption.
- Field Management: Perform timely weeding, soil aeration, and irrigation post-fertilization.
rational fertilizer use is crucial for high-quality Chinese cabbage. Proper early-stage applications support healthy growth, while avoiding excess prevents adverse effects.
