T/NAASS 077-2023 Technical Specifications for the Full-Quantity Fertilization of Green Maize in the Spring Wheat No-Tillage and Replanting System in the Yinghuang Irrigation Area of Ningxia

Scope

Scope: This standard specifies the terms and definitions, machinery and variety selection, fertilization, irrigation management, weed control and pest control, and harvesting for the full-dose fertilization of spring wheat and no-tillage sowing of silage corn in the Yinhe Irrigation District of Ningxia. This standard applies to the Yinhe Irrigation District of Ningxia. Main technical content: 3. Terms and definitions The following terms and definitions apply to this document. - Slow-release fertilizer A fertilizer that delays the initial release of nutrients due to changes in chemical composition or coating with semi-permeable or impermeable materials, extending the effective period for plants to absorb and utilize its effective nutrients and allowing the nutrients to be released at a set rate and duration. - Controlled-release fertilizer A higher form of slow-release fertilizer, which mainly controls the release of nutrients through coating or wrapping techniques to achieve safety, long-term effectiveness, and high efficiency. It prolongs the decomposition and release time of fertilizers, helps improve the utilization rate of fertilizer nutrients, and is suitable for mechanized production, especially for meeting the needs of seed-fertilizer combination sowing. Common controlled-release fertilizers include sulfur coating (fertilizer coated with fertilizer), resin coating, and urease inhibitors. According to the different production processes, they can be divided into compound type, mixed type, and blended type. - No-tillage sowing of maize A cultivation technology that completes the multi-process of stubble removal, fertilization, and maize sowing in one go after the harvest of the previous crop. - Full-dose fertilization Based on the growth and nutritional characteristics of crops, and according to the principle of balanced fertilization, the nutrients required by crops throughout their growth period are formulated into a dedicat

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