Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (21): 92-97.doi: 10.11924/j.issn.1000-6850.2013-0231

• 23 • Previous Articles     Next Articles

Soil Nutrients Situation and Changes of County Medium-low Yield in the North China Plain

  

  • Received:2013-01-23 Revised:2013-03-05 Online:2013-07-25 Published:2013-07-25

Abstract: The study is based on the data from the Formula Fertilization by Soil Testing and the Second Soil Survey, and adopts the conventional statistic analysis methods, it aims at investigating the soil nutrients situation and changes in Pingxiang County belong to county medium-low yield in the North China Plain. These results showed that, the soil organic matter, available N, K increased, and the available P had changed little, since that the Formula Fertilization by Soil Testing were implemented in Pingxiang County in 2008, the soil available P in 2008 and 2010 were 10.0 mg/kg, 10.8 mg/kg, respectively. Both of the soil organic matter and available N, P, Fe, Mn, Cu, Zn around the county in 2010 increased at different degrees compared with the results of the Second Soil Survey, and the available Mn, Zn among of above items raised the most with respective growth rates of 218.6% and 527.3%. The soil organic matter and available N, P, Fe, Cu had added 4.4 g/kg, 0.9 mg/kg, 3.5 mg/kg, 1.3 mg/kg, 0.34 mg/kg, respectively, available K had reduced 50.4 mg/kg. The soil organic matter and available N, K of plough layer around the county increased, and the change of available P was small form 2008 to 2010. The soil organic matter and available N, P, Fe, Mn, Cu, Zn of plough layer around the county in 2010 increased at different degrees compared with the results of the Second Soil Survey, and the available Mn, Zn among of above items raised the most.

CLC Number: