DOI: 10.57760/sciencedb.j00001.01682
title: A dataset of soil nutrients from long-term fertilization experiments in subtropical paddy fields in 2024
title: 亚热带区域稻田长期施肥定位试验2024年度土壤养分数据集

description: Soil nutrient is the foundation of high yields and sustainable yields. It directly determines the soil fertility and ecological function. The dynamic monitoring of soil nutrient provides foundational data for the evolution of soil fertility under long-term fertilization managements. This dataset is based on 12 long-term fertilization experiments located in Hunan Province initiated between 1986 and 2011. Fertilization treatments comprised: no fertilizer (CK), conventional fertilizer (CF), nitrogen-phosphorus fertilizer (NP), nitrogen-potassium fertilizer (NK), nitrogen-phosphorus-potassium fertilizer (NPK), high nitrogen-phosphorus-potassium fertilizer (hNPK), 30% organic fertilizer replaces fertilizer N (30% OM), 40% organic fertilizer replaces fertilizer N (40% OM), 50% organic fertilizer replaces fertilizer N (50% OM), 60% organic fertilizer replaces fertilizer N (60% OM), 100% organic fertilizer (OM), and rice straw with NPK fertilizer (NPKS). After the late rice harvest in 2024, soil samples (0-20 cm) were collected and analyzed according to standard methods, and a dataset of soil nutrients for long-term fertilization experiments in subtropical paddy fields was obtained, including soil organic carbon, total nitrogen, total phosphorus, total potassium, nitrate nitrogen, ammonium nitrogen, alkali-hydrolysable nitrogen, available phosphorus, available potassium, and pH. The dataset comprises 5 parts, includes: basic information on experimental plots, initial soil basic physicochemical properties, fertilizer application amounts, analytical methods of soil samples, and soil nutrient contents. This dataset provides not only the data support for soil nutrient cycling processes and succession trends in subtropical paddy soils, but also the basic information for the fertilizer application and optimized management of regional paddy fields.
description: Soil nutrient is the foundation of high yields and sustainable yields. It directly determines the soil fertility and ecological function. The dynamic monitoring of soil nutrient provides foundational data for the evolution of soil fertility under long-term fertilization managements. This dataset is based on 12 long-term fertilization experiments located in Hunan Province initiated between 1986 and 2011. Fertilization treatments comprised: no fertilizer (CK), conventional fertilizer (CF), nitrogen-phosphorus fertilizer (NP), nitrogen-potassium fertilizer (NK), nitrogen-phosphorus-potassium fertilizer (NPK), high nitrogen-phosphorus-potassium fertilizer (hNPK), 30% organic fertilizer replaces fertilizer N (30% OM), 40% organic fertilizer replaces fertilizer N (40% OM), 50% organic fertilizer replaces fertilizer N (50% OM), 60% organic fertilizer replaces fertilizer N (60% OM), 100% organic fertilizer (OM), and rice straw with NPK fertilizer (NPKS). After the late rice harvest in 2024, soil samples (0-20 cm) were collected and analyzed according to standard methods, and a dataset of soil nutrients for long-term fertilization experiments in subtropical paddy fields was obtained, including soil organic carbon, total nitrogen, total phosphorus, total potassium, nitrate nitrogen, ammonium nitrogen, alkali-hydrolysable nitrogen, available phosphorus, available potassium, and pH. The dataset comprises 5 parts, includes: basic information on experimental plots, initial soil basic physicochemical properties, fertilizer application amounts, analytical methods of soil samples, and soil nutrient contents. This dataset provides not only the data support for soil nutrient cycling processes and succession trends in subtropical paddy soils, but also the basic information for the fertilizer application and optimized management of regional paddy fields.