Nitrogen and phosphorus

Nitrogen and phosphorus, Total:49 items.

The international standard classification for "Nitrogen and phosphorus" includes: Farming and forestry , Fertilizers .

The Chinese standard classification for "Nitrogen and phosphorus" includes: .

Guizhou Provincial Standard of the People's Republic of China

DB52/T 1607-2021 Nitrogen, Phosphorus and Potassium Nutrient Limits for Tea Gardens

Professional Standard - Agriculture

NY/T 2017-2011 Determination of nitrogen,phosphorus and potassium in plants
NY/T 4163.2-2022 Technical guidelines for integrated prevention and control of rutrogen and phosphorus loss from paddy field- Part 2: Double-cropping rice
NY/T 1977-2010 Water-soluble fertilizers--Determination of total nitrogen,phosphorus and potassium content
NY/T 4162.3-2025 Technical Specifications for the Control of Nitrogen and Phosphorus Loss in Paddy Fields - Part 3: Side Deep Fertilization

Beijing Provincial Standard of the People's Republic of China

DB11/T 749-2010 Environmental Risk Assessment of Farmland Nitrogen and Phosphorus

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 4003-2025 Technical regulations for monitoring nitrogen and phosphorus losses in farmland
DB15/T 3045-2023 Technical guidelines for the prevention and control of agricultural non-point source pollution of nitrogen and phosphorus in water bodies

Hebei Provincial Standard of the People's Republic of China

DB13/T 6100-2025 Technical Regulations for Tomato Fertilizer Application in Facilities for the Prevention and Control of Nitrogen and Phosphorus Non-point Source Pollution
DB13/T 5402-2021 Technical specification for control of nitrogen and phosphorus leaching loss in farmland

Shaanxi Provincial Standard of the People's Republic of China

DB61/T 1414-2021 Specifications for application limits of nitrogen, phosphorus and potassium fertilizers in wheat

Fujian Provincial Standard of the People's Republic of China

DB35/T 1526-2015 Technical specification for nitrogen, phosphorus and potassium fertilization of main vegetables

Shanxi Provincial Standard of the People's Republic of China

DB14/T 2599-2022 Technical regulations for soil nitrogen and phosphorus summer fill crop control in vegetable greenhouses
DB14/T 2039-2020 Technical Specifications for Monitoring Nitrogen and Phosphorus Loss in Farmland Runoff in Hilly Areas
DB1408/T 026-2022 Technical regulations for limited use of nitrogen, phosphorus and potassium fertilizers in cotton

Group Standards of the People's Republic of China

T/CSES 45-2021 Technical guide for the process of nitrogen and phosphorus lose control from fruit orchard in plain area of south China
T/CSES 44-2021 Technical guide for whole-process prevention and control of nitrogen and phosphorus loss from paddy fields in south China

Hubei Provincial Standard of the People's Republic of China

DB4203/T 154-2019 Technical rules for fertilization to prevent and control nitrogen and phosphorus loss in surface runoff of citrus orchards on slopes
DB4203/T 153-2019 Basic technical rules for controlling nitrogen and phosphorus losses in surface runoff from rice-rapeseed rotation paddy fields
DB42/T 1649.1-2021 Technical regulations for reducing nitrogen and phosphorus emissions from surface runoff of agricultural land Part 1: Slope farmland
DB42/T 1425-2018 Technical regulations for the prevention and control of nitrogen and phosphorus loss in surface runoff of cotton fields
DB42/T 1420-2018 Technical Regulations for Prevention and Control of Nitrogen and Phosphorus Loss in Surface Runoff of Paddy Fields
DB42/T 2031-2023 Technical regulations for control and utilization of nitrogen and phosphorus loss in manure from distributed livestock and poultry
DB42/T 1649.3-2022 Technical regulations for reducing nitrogen and phosphorus emissions from surface runoff of agricultural land Part 3: Comprehensive rice and shrimp farming fields

Xinjiang Provincial Standard of the People's Republic of China

DB6521/T 108-2024 Specification for Comprehensive Control Technology of Nitrogen and Phosphorus Leaching in Open-field Hami Melon

Zhejiang Provincial Standard of the People's Republic of China

DB3301/T 1083-2018 Standardization of Nitrogen, Phosphorus and Potassium Fertilization Limits in Intensive Management of Thunder Bamboo Forest
DB33/T 2329-2021 Construction specification of nitrogen and phosphorus ecological interception ditch system for farmland non-point source pollution control

Henan Provincial Standard of the People's Republic of China

DB4110/T 74-2024 Technical regulations for source reduction and control of nitrogen and phosphorus non-point source pollution in farmland

Shandong Provincial Standard of the People's Republic of China

DB37/T 4588-2023 Technical requirements for the prevention and control of nitrogen and phosphorus non-point source pollution of garlic fertilizer
DB37/T 4589-2023 Fertilization technical requirements for nitrogen and phosphorus leaching pollution control of tomato in solar greenhouse

Liaoning Provincial Standard of the People's Republic of China

DB21/T 3950-2024 Technical regulations for regulating nitrogen and phosphorus nutrient leaching loss in facility soils

Yunnan Provincial Standard of the People's Republic of China

DB5329/T 75-2021 Technical specifications for the construction of nitrogen and phosphorus ecological interception ditches for farmland runoff in the Erhai Lake Basin
DB5301/T 49-2021 Indirect discharge limits of nitrogen and phosphorus pollutants from industrial enterprises wastewater
DB5304/T 091-2024 Technical regulations for monitoring nitrogen and phosphorus loss from farmland in the dam area of the "Three Lakes" basin in Yuxi
DB5301/T 61-2021 Measuring method of nitrogen and phosphorus in algae mud of Dianchi Lake cyanobacteria treatment station
DB5304/T 092-2024 Technical standards for monitoring nitrogen and phosphorus loss from farmland in the mountainous and hilly areas of Yuxi
DB5329/T 50-2019 Planting technical specifications for controlling nitrogen and phosphorus in alfalfa

Hunan Provincial Standard of the People's Republic of China

DB43/T 2139-2021 Determination of Nitrogen and Phosphorus in Plants by Continuous Flow Analysis

Jiangxi Provincial Standard of the People's Republic of China

DB36/T 1353-2020 Technical regulations for the prevention and control of nitrogen and phosphorus loss in surface runoff of double-cropping paddy fields

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 2485-2019 Technical Regulations for Reducing Nitrogen and Phosphorus Non-point Source Pollution by Biochar
DB23/T 2484-2019 Technical regulations for reducing nitrogen and phosphorus non-point source pollution by applying slow and controlled release fertilizers in farmland

Tianjin Provincial Standard of the People's Republic of China

DB12/T 1015-2020 Determination of Nitrogen and Phosphorus in Dung Water of Dairy Farms Mid-infrared Attenuated Total Reflectance Spectrometry
DB12/T 955-2020 Determination of Nitrogen and Phosphorus in Dairy Farm Dung Water by Near Infrared Diffuse Reflectance Spectrometry

Gansu Provincial Standard of the People's Republic of China

DB62/T 5090-2025 Technical Specification for the Rational Application of Nitrogen, Phosphorus, and Potassium Fertilizers in Potato Cultivation in Arid Areas

Anhui Provincial Standard of the People's Republic of China

DB34/T 3295-2018 Cultivation Technical Regulations of Wheat Nitrogen and Phosphorus Reduction Control in Chaohu Lake Region

Jiangsu Provincial Standard of the People's Republic of China

DB32/T 4262-2022 Technical specifications for increasing the efficiency of chemical fertilizers and reducing nitrogen and phosphorus emissions in rice-wheat rotation crops in the Taihu Lake Basin

Indonesia Standards

SNI 2803-2012 Solid nitrogen phosphor potassium fertilizer

Czech Standards Institute (UNMZ)

CSN 65 4927-1980 Complex fertilizer NPK-2

American Society for Testing and Materials (ASTM)

ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector