| The Effect of different fertilization treatments on soil nutrient and crop yield in oasis farmland |
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| DOI：10.7606/j.issn.1000-7601.2008.03.31 |
| Key Words: long-term experiment fertilization treatment soil nutrient crop yield |
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| Abstract: |
| For studying the nutriment circular regulation of agro-ecosystem,investigation was made on the changes of soil nutrient and crop yield in oasis farmland under different fertilization treatments by the long-term experiment.The results showed that the contents of soil nutrient were affected significantly by different fertilization treatments.The content of soil nutrient in treatment of inorganic-organic compound was higher than that of other treatments,especially the average of soil total organic matter,total nitrogen and available nitrogen,are 1.5 g/kg,0.19 g/kg and 10.5 mg/kg higher than that of CK treatment.The results also showed that the crop yields were related with the contents of soil nutrient,especially the soil total organic matter,total nitrogen and available nitrogen.N is the most important nutrient factor to restrict crop yield and the second is P.The change of soil nutrient and crop yields showed that the inorganic-organic compound fertilizer has the hightest yield,and it is 4010.8 kg/hm2. The inorganic-organic compound fertilizer may be the best fertilization way to improve the soil productivity and crop yield. |
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