| The effect of no-tillage with stubble on the dynamic change of dry matter accumulation and yield of spring wheat during grain filling |
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| DOI：10.7606/j.issn.1000-7601.2006.06.05 |
| Key Words: no-tillage with stubble spring wheat grain filling dry matter accumulation yield |
| Author Name | Affiliation | | CHEN Le-mei | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | MA Lin | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | LIU Jian-xi | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | SHI Shu-bing | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | GUO Fei | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | KU Zai-la | College of Agronomy Xinjiang Agricultural University,Urumqi 830052,China | | LIN Sheng-quan | Farm of the1st Productive and Constructive Group in Xinjiang Alar,Xinjiang 843000,China |
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| Abstract: |
| In comparison with the conventional tillage,the dynamic change of dry matter accumulation,partition and yield of spring wheat during grain filling were studied in this paper.The results showed that the dry matter accumulation amount with high mulching and low mulching is higher than that of the conventional tillage by 16.1% and 9.8%,respectively.So the no-tillage with stubble provided sufficient dry matter resource for increasing grain weight and forming yield;compared with the conventional tillage,the dry matter accumulation amount had a linear phase between 21 and 28 days after anthesis;the effect of no-tillage with stubble on the portion rate in each organs is smaller in the process of translation and partition.Compared with the conventional tillage,the no-tillage with stubble enhanced grain yield mainly due to the accumulation of photosynthate before anthesis and little photosynthate after anthesis.The yield with the low mulching treatment and with the high mulching treatment is 11.68%,18.52% higher than that with the conventional tillage,respectively. |
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