Isotopic assessment of soil phosphorus fertility and evaluation of rock phosphates as phosphorus sources for plants in subtropical China

Agriculture & Biology

• rock phosphate 99%
• soil fertility 73%
• phosphorus 58%
• China 50%
• soil 39%
• subtropical soils 21%
• kinetics 17%
• soil chemical properties 15%
• fertilizers 15%
• sustainable agriculture 14%
• methodology 10%
• tropical soils 8%
• monitoring 8%
• testing 7%
• greenhouse experimentation 6%
• soil properties 6%
• crop yield 5%
• soil sampling 5%
• greenhouses 4%
• crops 3%
• water 2%

Earth & Environmental Sciences

• phosphate rock 100%
• fertility 82%
• phosphorus 56%
• evaluation 37%
• soil 33%
• extraction method 14%
• fertilizer 11%
• kinetics 11%
• field experiment 8%
• chemical property 8%
• tropical soil 5%
• alternative agriculture 5%
• resource 5%
• crop yield 4%
• limiting factor 4%
• agricultural production 4%
• chemical 4%
• soil property 4%
• incubation 3%
• test 3%
• dissolution 3%
• crop 3%
• productivity 3%
• method 3%
• laboratory 2%
• monitoring 2%
• experiment 1%
• water 1%
• effect 1%