1、Fertilizer application rate and nutrient use efficiency in Chinese

We reviewed 476 papers from 1990 to 2021 to investigate the changes in the conventional application rate (CAR) and nutrient use efficiency (NUE) of fertilizers. The results indicated a decrease in the CAR of nitrogen (N) and phosphorus (P) fertilizers from 1993 to 2020.

2、化肥使用环境安全技术导则_中华人民共和国生态环境部

本标准规定了化肥环境安全使用的原则、污染控制技术措施和管理措施等相关内容。 本标准适用于指导种植业化肥环境安全使用的监督与管理，也可作为农业技术部门指导作物生产科学施肥的依据。 本标准为首次发布。 化肥使用环境安全技术导则（HJ 555-2010）

3、GREENTECH (SUZHOU)HUMORGANIC TECHNOLOGY LTD.

Base Fertilizer: farmyard manure or organic fertilizer, according to traditional/regular application method. Turning-green Fertilizer: 75 Kg of urea and 75 Kg of potassium fertilizer.

4、Guidelines for the use of green food and fertilizer

Each definition explains the characteristics, sources, and usage guidelines of different fertilizer types. The standard also outlines the allowable types of fertilizers for AA and A-grade green food production.

Green Tech America INC – Green Tech America INC

We’re pioneering the development of organic fertilizers that not only nourish plants but also rejuvenate the soil. Our products are designed to enhance microbial activity and soil structure, leading to more fertile lands and sustainable agricultural practices.

Guidelines for the Use of Green Food Fertilizers

This standard applies to farm fertilizers and commercial organic fertilizers, humic acid fertilizers, microbial fertilizers, semi-organic fertilizers (organic compound fertilizers), inorganic (mineral) fertilizers, and foliar fertilizers that produce AA-grade green foods and A-grade green foods.

Fertilizer application improvements in China

Management practices including augmenting the ratio of organic to chemical fertilizers, implementing deep application techniques and reintegrating straw into fields can bolster food production ...

Technical guideline on environmental safety application of chemical

The current standard specifies such contents as the principle for safe use of fertilizers, technical measures for pollution control and management measures. The current standard is applicable to the supervision and management of safe use of fertilizers in planting industry.

GREENTECH (SUZHOU)HUMORGANIC TECHNOLOGY LTD.

Normally, NutriGrow liquid fertilizer is not to be used as basal fertilizer, but a small amount (7.5 – 15 Kg/Ha) could be added on during the application of basal fertilizer.

IFA World Fertilizer Use Manual

The manual is a 600-page handbook, containing detailed information on current fertilizer use recommendations and practices.

GreenTech Fertilizer is a new type of eco-friendly compound fertilizer containing multiple essential nutrients such as nitrogen (N), phosphorus (P), and potassium (K). It effectively promotes plant growth and development. Below are detailed instructions for its application:

1. Preparation Before Fertilization Before using GreenTech Fertilizer, conduct soil testing to assess soil fertility and pH levels. Adjust the dosage based on results: increase usage for nutrient-deficient soils, or reduce it for excessively fertile soils. Additionally, tailor fertilizer type and amount to the crop’s growth stage and nutritional needs.

2. Application Methods GreenTech Fertilizer can be applied via foliar spraying, root top-dressing, or drip irrigation:

• Foliar Spraying: Dilute the fertilizer and spray directly onto leaves using a mist sprayer. This method delivers nutrients directly to roots, enhancing absorption efficiency.
• Root Top-Dressing: Sprinkle the fertilizer evenly over soil for direct plant uptake.
• Drip Irrigation: Dissolve the fertilizer in water and deliver it through a drip system. This controls dosage and prevents overapplication.

3. Timing of Application Adjust application timing based on crop growth stages:

• Early Growth Stage: Apply higher doses to meet nutritional demands.
• Late Growth Stage: Reduce dosage to avoid nutrient burn. Avoid applying during high temperature or humidity to prevent damage.

4. Dosage Dosage varies by crop type, growth stage, and soil fertility. General recommendation: 5–10 kg per mu (0.067 hectares). For short-growing crops or seedlings, reduce dosage; for long-growing crops, increase as needed.

5. Precautions

• Use reputable products to avoid counterfeits.
• Follow recommended dosages strictly to prevent overuse.
• Avoid mixing with alkaline substances, as this may reduce efficacy.
• Ensure proper drainage post-application to prevent root rot from excess moisture.

6. Expected Effects Evaluate effectiveness by observing crop health and soil improvements:

• Optimal Results: Vibrant green leaves, sturdy stems, and plump fruits/vegetables.
• Deficient/Excessive Application: Stunted growth, yellowing leaves, weak stems, or poor yields. Adjust timing and dosage accordingly.

For best results, follow proper application methods, timing, and precautions to maximize GreenTech Fertilizer’s benefits and ensure healthy crop development.