DB15/T 4079.1-2025 Technical Specifications for Water and Fertilizer Saving Techniques for Main Crops in the Yellow River Irrigation Area Part 1: Corn

DB15/T 4079.2-2025 Water-saving and weight-reducing technical specifications for main crops in the Yellow River irrigation area - Part 2: Wheat DB15/T 4079.3-2025 Technical Regulations for Water Saving and Fertilizer Reduction Techniques for Main Crops in the Yellow River Irrigation Area Part 3: Watermelon DB15/T 4079.4-2025 The main water-saving and fertilizer reduction technical specifications for crops in the Yellow River irrigation area, Part 4: Processed tomato DB15/T 4079.5-2025 Technical Regulations for Water and Fertilizer Saving Techniques for Main Crops in the Yellow River Irrigation Area Part 5: Wine-making Grapes DB15/T 4079.6-2025 The Water-saving and Reducing-fertilizer Technical Regulations for Main Crops in the Yellow River Irrigation Area - Part 6: Sunflower (drip irrigation) DB15/T 4079.7-2025 Chapter 7: Water-saving and weight-reduction techniques for major crops in the Yellow River irrigation area using sunflower (ground irrigation)