| Effect of conservational farming on soil water and wheat yield in rotation paddy-upland crop field of Sichuan hilly area |
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| DOI：10.7606/j.issn.1000-7601.2009.04.36 |
| Key Words: Sichuan hilly area rotation paddy-upland crop field conservational farming soil water wheat yield |
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| Abstract: |
| The influence of different farming patterns on soil moisture and wheat yield in rotation paddy-upland crop field of Sichuan hilly
area was investigated by comparing conservational farming method of straw covering with traditional farming method of non-straw covering. The results showed t
hat the straw covering farming method increased markedly soil water content compared with the traditional farming method (ck), and the non-tillage straw coveri
ng farming method especially overmatched the tillage straw/non straw covering farming method. During the peak tillering period, the soil water content of the field treated by straw covering is 4.9% to 12.8% higher than the field treated by non-straw covering, and the higher soil water content is propitious to the growth of wheat. The results also showed that the wheat tillering numbers in the straw covering farming increased by 11.4% to 45.8% compared with the tillage non-straw covering farming. Higher wheat yield was found in the conservational farming method of straw covering mainly due to increased numbers of tillers, seeds and weight of 1000-grain weight, the wheat yield was increased by 3.2% to 18.1% i
n the straw covering compared with the non-straw covering farming method. So conservational farming had remarkable effect on wheat yield increase. |
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