| Study on optimizing combination of high yield and quality cultivation factors of spring wheat variety Ganchun20in Chaidamu area |
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| DOI：10.7606/j.issn.1000-7601.2008.06.08 |
| Key Words: spring wheat cultivation technology Chaidamu area |
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| Abstract: |
| By using regressive experiment method of orthogonal conic substitution with three factors, the regression relationship between seed dosage and N and P applying amount and grain yield, protein content and protein yield was studied on spring wheat variety Ganchun No.20 in Chaidamu area.The result showed that there is significant regression relationship between seed dosage and N and P applying amount and the three indexes mentioned above.The significance of the effect of cultivation factors on grain yield, protein content and protein yield are in the order of: N applying amount, seed dosage and P applying quantity.The optimizing combination of cultivation factors on spring wheat variety Ganchun No.20 in this area are seed dosage (404.5 kg/hm2) , N (pure N 240 kg/hm2) and P (P2O5 195 kg/hm2) , so it is suggested that the seed dosage should be reduced and P applying quantity should be increased properly. |