T/MSHM 1-2022 Ninglan plateau red rice product quality requirements
T/MSHM 1-2022 Ninglan plateau red rice product quality requirements
Basic Information
Scope
Main Technical Content: 4. Production Technology Requirements 4.1 Site Conditions 4.1.1 Climate The cultivation area is located in the middle section of the Hengduan Mountains on the northwestern plateau of Yunnan, in a high-altitude cold and cool mountainous region. It belongs to a low-latitude plateau monsoon climate with distinct seasons and pronounced vertical climate variation. The planting altitude ranges from 1,800 to 2,750 meters, with an average annual temperature of 12.7°C, large daily temperature differences, and an average annual sunshine duration of 2,298 hours. The frost-free period lasts 180 days, making it an exceptional ecological environment for rice cultivation and the highest altitude limit for rice cultivation in the world, earning it the nickname of "the Roof of the World for Rice". 4.1.2 Topography and Soil The paddy soil is mainly composed of yellow-brown soil, brown soil, and sandy soil, with high organic matter, effective phosphorus, and available potassium content. It is recommended to select areas with concentrated and continuous land, flat terrain, and fertile soil (loam or sandy loam) that meet the soil environmental quality standards of GB 15618. The land should have good ecological quality and be free from pollution. 4.1.3 Irrigation The irrigation water should be rainwater or mountain spring water. The paddy fields should have sufficient irrigation water sources that meet the requirements of GB 5084. 4.2 Field Preparation 4.2.1 Variety Selection Due to the high altitude and cold climate of the planting area, foreign varieties cannot adapt to the local special climatic conditions and fail to mature. The cultivars selected are Qunxuan 2 and Lijing 13-1. 4.2.2 Seedling Preparation Soak the seeds in the central part of the biogas digester for 36 hours. Germinate the seeds: Sprout the seeds for four days until they break through the husk and turn white before planting. Timely planting: After soaking and germi