1、Slow

The results showed that compared with deep placement of urea (DCK), slow-release fertilizer broadcasting (SK), and the traditional fertilization mode practiced by farmers (CK), the average annual yield of rice under DSK treatment significantly increased by 8.78%, 15.18%, and 23.54% respectively.

2、Application of slow

Slow-controlled release fertilizers are experiencing a popularity in rice cultivation due to their effectiveness in yield and quality with low environmental costs. However, the underlying mechanism by which these fertilizers regulate grain quality remains inadequately understood.

3、(PDF) Slow and Controlled Release Nitrogen Fertilizers: Options for

International Fertilizer Association (IFA) included controlled release fertilizers (CRFs), slow release fertilizers (SRFs), sulphur coated urea (SCU), stabilized nitrogen...

4、Slow and Controlled Release Nitrogen Fertilizers: Options for

In India, the specialty fertilizers are categorized broadly as water soluble fertilizers, neem coated urea, fortified fertilizers, customized fertilizers (CFs), micronutrient fertilizers, and liquid fertilizers.

5、Research Progress and Prospect of Slow and Controlled

The effects of different application technologies of slow and controlled-release nitrogen fertilizer on rice yield formation, as well on soil and atmospheric environment were introduced.

Application of slow

In 2020 and 2021, the yields of UF and SCU groups showed significant decreases when compared to conventional fertilization, accompanied by a decline in nutritional quality. Additionally, PCU group exhibited poorer cooking and eating qualities.

Controlled

In recent years, rice–fish coculture has gained more popularity at a growing pace in China. Controlled-release fertilizer can provide nutrients in a timely manner and increase nutrient efficiency.

Lower dose of controlled/slow release fertilizer with higher rice yield

Application of slow/controlled release fertilizer (SCRF) in paddies is an efficient strategy to ensure rice yield and to improve N utilization. Notably, the effects of SCRF often vary with the types and dosages of SCRF, rice variety, and soil properties.

Effects of Slow

The results showed that slow-release fertilizer had a significant promoting effect on plant height, tiller number, chlorophyll content, dry matter accumulation, net dry matter accumulation, and population growth rate of super rice and conventional rice.

Slow and Controlled Release Nitrogen Fertilizers: Options for Improving

The emergence of slow and controlled-release fertilizers provides a new option for more efficient fertilization of rice.

Hangzhou, as a key city in eastern China and an important base for agricultural technology and industry, hosts several professional manufacturers specializing in slow-release and controlled-release fertilizers for rice. These companies focus on producing high-efficiency, eco-friendly fertilizer products to meet the demands of modern agriculture. Below is a detailed introduction to some of the leading manufacturers in Hangzhou:

1. Hangzhou Jinsui Agrochemical Technology Co., Ltd.

Company Profile: Hangzhou Jinsui Agrochemical Technology Co., Ltd. is an enterprise dedicated to the research and development of agricultural production materials. It boasts advanced production equipment and technological capabilities, primarily manufacturing various slow-release and controlled-release fertilizers, including specialized formulas for rice.

Product Features: The company’s fertilizers are characterized by long-lasting effects, controllability, and environmental friendliness. They release nutrients slowly according to crop growth demands, improving fertilizer utilization rates and reducing environmental pollution.

Market Positioning: Jinsui’s products target large domestic farms, cooperatives, and agricultural research institutions, while also exporting to regions like Southeast Asia.

2. Zhejiang Green Field Agricultural Technology Co., Ltd.

Company Profile: Zhejiang Green Field Agricultural Technology Co., Ltd. is a modern agricultural enterprise driven by technological innovation, focusing on the development and production of bio-fertilizers. Its research team, composed of multiple PhDs and master’s degree holders, continuously introduces new products.

Product Features: Using biotechnology, Green Field’s slow-release fertilizers enhance soil fertility, improve crop disease resistance, and promote soil structure and root development.

Market Positioning: The company serves farmers and planters directly, helping them achieve high yields and superior crop quality through its fertilizers.

3. Hangzhou Zhongnonglian Agricultural Technology Co., Ltd.

Company Profile: Hangzhou Zhongnonglian Agricultural Technology Co., Ltd. is a comprehensive agricultural technology company involved in agricultural technology promotion and product processing. It emphasizes innovation to advance sustainable agricultural development.

Product Features: Zhongnonglian’s fertilizers feature unique formulations and production processes that enhance soil water and nutrient retention while minimizing chemical pollution.

Market Positioning: The company provides scientific and eco-friendly agricultural solutions to large farms and cooperatives both domestically and internationally.

4. Hangzhou Wofeng Agricultural Technology Co., Ltd.

Company Profile: Hangzhou Wofeng Agricultural Technology Co., Ltd. specializes in agricultural technology product development and application, offering farmers efficient and eco-friendly farming tools.

Product Features: Wofeng’s slow-release fertilizers deliver prolonged efficacy and adaptability to diverse soil conditions and crops. They also offer cost-effectiveness and environmental benefits.

Market Positioning: Targeting large domestic farms and cooperatives, Wofeng’s products have also gained recognition in international markets.

these leading Hangzhou manufacturers excel in their respective fields, driving agricultural progress through technological innovation and product upgrades. While ensuring product quality, they actively fulfill social responsibilities to support the goals of green agriculture.