T/ZJNJ 0032-2024 The efficient water and fertilizer integration technology specification for paddy fields

Scope

Scope: This document specifies the terms and definitions, technical requirements, system composition and layout, management system, equipment installation, system operation management and maintenance, etc. of the efficient water and fertilizer integration technology in rice fields. This document is applicable to the efficient water and fertilizer integration management of rice fields irrigated by the terminal channels or low-pressure pipes in rice irrigation areas. Main technical contents: Rice fields should adopt water-saving irrigation technologies, and can select dry-wet alternating irrigation techniques such as controlled irrigation, thin drip irrigation, shallow frequent irrigation, shallow wet irrigation, and moist irrigation according to local conditions. Based on the local soil physicochemical properties and the growth stage of rice, fertilizers with good solubility, low corrosivity, and low interaction with irrigation water should be selected. All indicators should also meet the requirements of NY 1429, NY/T 2623, NY/T 2624, NY/T 2625, and NY/T 1107. The volume of the system's fertilizer storage tank should be comprehensively determined based on the controlled area of the system, the solubility of fertilizers, the range of fertilizer-water ratios, and the dosage of secondary fertilizers.

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