Application Time: Spring 2026
Crop: Ginkgo nursery seedlings (leaf-use production)
Application Method: Basal application / broadcasting / topdressing
Application Rate: 300 kg/ha broadcast in early spring

Background

In nursery cultivation systems, soil structure and nutrient release stability directly affect seedling vigor and uniformity. Young ginkgo seedlings require a stable nutrient supply during the early growth stage. However, in practical production, problems such as soil compaction, low organic matter, uneven nutrient availability, and weak root activity are common, often resulting in yellowing leaves, slow growth, and inconsistent seedling development.In this trial, MAX BLACKPEARL was used as a basal soil-conditioning fertilizer to evaluate its performance in improving soil physical properties, enhancing root vitality, and extending nutrient supply duration.

Performance Before Application

The trial field showed compacted soil with moderate organic matter content and weak water and nutrient retention capacity. Ginkgo seedlings exhibited weak growth, yellowish leaves, slow development, and noticeable variation in plant uniformity.

Performance After Application (20Days Later)

Results showed significant improvements in both plant growth and soil condition after applying MAX BLACKPEARL:

Above-ground performance:Leaves gradually became greener with improved color uniformity. Plant growth accelerated, overall vigor improved, and seedling uniformity became more consistent.

Below-ground performance:Root activity increased significantly, with more fibrous roots and a more even root distribution, enhancing nutrient uptake capacity and supporting continuous shoot growth.

Soil performance:Soil aggregate structure improved progressively, resulting in better aeration and looseness. Water and nutrient retention capacity increased, fertilizer utilization efficiency improved, and nutrient release became more balanced and stable.

Product Introduction

MAX BLACKPEARL is a slow-release granular fertilizer formulated with humic acid, amino acids, and NPK nutrients, specifically designed for soil application. The product features uniform black round granules suitable for both basal and topdressing applications.

Through the dual functions of slow nutrient release and soil conditioning, MAX BLACKPEARL continuously improves the rhizosphere environment, enhances nutrient utilization efficiency, and provides stable, long-lasting nutritional support for crop growth.

Technical Specifications

● Humic Acid: 25%

● Amino Acids: 8%

● N-P₂O₅-K₂O: 12-0.5-1.5

● Organic Matter: 45%

Application Methods

Basal Application / Topdressing:

● Basal application: 150–300 kg/ha before planting or land preparation

● Topdressing: 75–150 kg/ha applied in stages during the growing period

Product Link：https://www.citymax-group.com/maxblackpearl-product/