GB/T 34813-2017 in English
VALIDMeteorological grades of water-saving irrigation-Soybean
- Issued on:2017-11-01
- Implemented on:2017-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34813-2017作物节水灌溉气象等级 大豆》由TC539（全国农业气象标准化技术委员会）归口，主管部门为中国气象局。
Introduction
Interpretation of the National Standard of the People's Republic of China GB/T 34813—2017
Background and Significance of Standard Formulation
This standard is under the jurisdiction of the National Technical Committee for Agricultural Meteorology Standardization (SAC/TC 539), and aims to provide real-time and targeted soybean water-saving irrigation services, alleviate the shortage of agricultural water resources, and improve the efficiency of water use in farmland.
Comparison of standard frameworks
| Standard dimensions | GB/T 34813—2017 | International reference standards |
|---|---|---|
| Grade division | Grade 0, 1, 2, 3 | - |
| Irrigation quota | 52.5-90.0 mm | FAO recommended value |
| Calculation of water deficit rate | Based on development stage and precipitation forecast | Penman-Monteith formula |
Implementation suggestions and technical points
Practical application case analysis
Take the soybean branching period as an example. If there is no rain forecast in the next three days and the water deficit rate is 35%, small water irrigation (quota 52.5 mm) should be implemented, and real-time adjustments should be made based on the effective precipitation in the field.
During the implementation process, it is recommended to use soil moisture sensors and weather stations to accurately monitor the water deficit situation.
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