[A long-term field trial on fertilization and on use of recycled nutrients in farming systems IV. Soil fertility changes].
The fertility changes of soil under different fertilization treatments of a twelve years field trial indicated that the application of compost recycled in a farming system with appropriate amount of fertilizer applied to balance the soil nutrient budget, could not only produce higher crop yields and less surplus of nutrients into environment, but also improved soil fertility with significant increase of soil organic carbon and nitrogen in cultivated layer. However, maintaine higher soil available phosphorus, it was not sufficient just to balance the budget of soil phosphorus, and more phosphorus fertilizer application was needed.
Zhang
Lu
L
Institute of Applied Ecology, Chinese Acadeny Science, Shenyang 110016.
Shen
Shanmin
S
Yu
Wantai
W
D000383:Agriculture; D002244:Carbon / Q000378:metabolism; D003247:Conservation of Natural Resources; D018556:Crops, Agricultural / Q000254:growth & development*; D017753:Ecosystem; D005308:Fertilizers; D009584:Nitrogen / Q000378:metabolism; D010758:Phosphorus / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D012987:Soil / Q000032:analysis*
D005308:Fertilizers; D012987:Soil; D010758:Phosphorus; D002244:Carbon; D009584:Nitrogen; D011188:Potassium