1、Optimizing water

It is recommended to use subsurface drip irrigation with a lower flow rate (≤1Lh −1) and nitrogen fertilizer (10–25 % lower than the traditional nitrogen application rate of farmers). This study provides inspiration for efficient and economical agricultural water management.

2、Chemical fertilizer reduction combined with bio

The continuous application of chemical fertilizers in vegetable cropping has led to deterioration of the soil environment and reduced yield and quality. The objective of this study was to evaluate the effect of combining chemical and bio-organic ...

3、Optimizing irrigation and nitrogen application strategies to improve

Therefore, to develop effective water and N management strategies for sustainable and efficient crop production, it is essential to conduct field experiments that investigate how sunflower growth and yield to different irrigation and N application rates under specific climatic conditions.

4、Optimization of Nitrogen Dose through Fertigation in Cauliflower under

The present study was planned to study the response of different levels of nitrogen application on cauliflower crop and to work out suitable nitrogen fertigation dose for cauliflower crop...

Optimizing irrigation and nitrogen application strategies to

Optimizing irrigation and fertilizer management regime is an effective means of improving crop water and fertilizer productivity as well as reducing negative impacts on the ecosystem.

Effect of Fertilizer Combination and Application Methods of Nano

With three repetitions of ten treatments each, the experiment consisted of 30 experimental units using the Randomized Complete Blocks Design (R.C.B.D.) and comparing their averages using Duncan's multiple range test at the 0.05 probability level.

Improving nutrient and water use efficiencies using water

Precise fertilization management improves the nutrient and precipitation efficiency and net profit.

[Effect of combined application of organic and chemical fertilizers on

To investigate the effects of different ratios of organic and chemical fertilizers on the yield and quality of Epimedium pubescens,so as to provide a scientific basis for the fertilization of high-yield and high-quality E. pubescens cultivation.

Foliar application of Fe2O3 nanofertilizer on growth and yield of

The growth, yield, and quality of cauliflower (Brassica oleracea var. botrytis L.) cv. Pusa Snowball K-1 were studied using Fe 2 O 3 -nano fertilizer (Fe 2 O 3 -N) in combination with Azotobacter, Farmyard manure (FYM), and Phosphorus solubilizing bacteria (PSB).

Chemical fertilizer reduction combined with bio

Overall, this study suggests that balanced fertilization and the application of bio-organic fertilizers are essential to ensure soil fertility and long-term sustainable green productivity. Vegetables are among the foods with the largest per capita consumption globally.

Fujian cailiflower, also known as "Fujian caixin" or "tsai tai," is a vegetable widely cultivated in the Fujian region. To ensure its healthy growth and high yields, selecting the appropriate fertilizers is critical. Below are detailed recommendations on effective irrigation fertilizers for Fujian cailiflower:

I. Soil Testing and Analysis

1. Soil pH Testing

• Importance: Understanding soil acidity or alkalinity is essential for choosing fertilizers suitable for cailiflower growth. Different crops have varying pH requirements, and extreme pH levels can hinder normal plant development.
• Method: Use professional soil pH testers or rapid litmus paper tests for quick assessments.
• Example: If soil pH is acidic (<6), apply lime to adjust it; if alkaline (>7), use sulfur or other acidic materials.

2. Soil Nutrient Content Analysis

• Importance: Accurate soil nutrient levels determine fertilizer types and dosages. Excessive or deficient nutrients can adversely affect plant health.
• Method: Employ rapid soil nutrient testing instruments or consult agricultural experts.
• Example: If nitrogen (N), phosphorus (P), or potassium (K) levels are low, prioritize supplementing these; if nutrients are excessive, reduce fertilizer amounts or adjust management practices.

II. Selection and Use of Organic Fertilizers

1. Types of Organic Fertilizers

• Chicken/Cow Manure: Rich in organic matter and microelements, improves soil structure and provides essential nutrients.
• Green Manure: Legumes like Azolla or alfalfa enhance soil organic matter and water/nutrient retention.
• Farmyard Manure: Includes草木灰 (ash) and animal excreta, offering diverse nutrients to boost soil fertility.

2. Timing and Methods

• Application: Compost organic fertilizers before use to transform them into plant-available forms.
• Timing: Apply in spring or autumn when plants grow vigorously and nutrient demands are high.
• Caution: Avoid direct application of raw organic fertilizers during hot summers to prevent diseases.

III. Selection and Use of Inorganic Fertilizers

1. Phosphate Fertilizers

• Mechanism: Phosphorus promotes root development and disease resistance.
• Application: Use liquid or solid forms based on soil tests and crop needs.
• Caution: Excessive phosphate may acidify soil and disrupt nutrient balance.

2. Potassium Fertilizers

• Mechanism: Enhances cold/disease resistance and photosynthesis efficiency.
• Application: Apply as basal, topdressing, or foliar sprays.
• Caution: Avoid mixing with nitrogen fertilizers to prevent reduced efficacy; overuse may impede uptake of other nutrients.

IV. Selection and Use of Compound Fertilizers

1. Advantages of Compound Fertilizers

• Balanced Nutrients: Contain N, P, K, and other elements to meet crop needs at different growth stages.
• Ease of Use: Simpler application than single-nutrient fertilizers, with stable outcomes.
• Cost-Effective: Optimizes resource use and reduces waste compared to single-element fertilizers.

2. Selection Criteria

• Crop Needs: Choose formulas suited to local climate and growth cycles.
• Soil Conditions: Match fertilizers to soil nutrient levels and pH.
• Budget: Select cost-efficient products within financial means.

V. Fertilization Techniques and Practices

1. Timing and Methods

• Timing: Spring is optimal for fertilization due to high nutrient demand during active growth.
• Methods: Apply via furrows, holes, or foliar sprays. Furrows suit field crops, holes for orchards/flowers, and sprays for humidity-loving crops.
• Caution: Prevent direct root contact to avoid burning; adjust strategies based on growth stages and soil conditions.

2. Dosage Control

• Quantification: Base dosage on soil tests and crop requirements (e.g., 50–100 kg/mu of compound fertilizer).
• Dynamic Adjustment: Monitor and modify applications to avoid overuse and environmental harm.
• Record-Keeping: Maintain detailed logs to track effects and refine approaches.

Scientifically guided fertilization for Fujian cailiflower requires integrating soil conditions, crop needs, and environmental factors. Combining organic, inorganic, and compound fertilizers with proper techniques ensures balanced nutrition, robust growth, and sustainable productivity.