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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (5): 61-65.doi: 10.11924/j.issn.1000-6850.casb16050147

Special Issue: 油料作物

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Effect of Tillage Method and Straw Mulching on Soil Physicochemical Properties and Peanut Yield

  

  • Received:2016-05-25 Revised:2016-08-01 Accepted:2016-08-16 Online:2017-03-01 Published:2017-03-01

Abstract: In order to provide technical basis for peanut high-yield and wheat straw reasonable use in vertisol area, a field experiment was conducted to study the effects of tillage method (no-tillage and ridge culture) and straw mulching on soil physicochemical properties and peanut yield using split-plot randomized block design. The results showed that in peanut flowering period, the treatment of ridge tillage with wheat straw mulching had the highest temperature and salinity content in topsoil, but it had the lowest water content; in peanut harvest period, the treatment of ridge tillage with wheat straw mulching had the highest pH value in topsoil, but it had the lowest soil bulk density; in different development stages of peanut, leaf SPAD values in ridge tillage with wheat straw mulching were the biggest; peanut yield of ridge tillage with wheat straw mulching was the highest, compared with no-tillage without wheat straw mulching and no-tillage with wheat straw mulching, the yield increased by 664.7 and 818.1 kg/hm2, and the yield increase rate was 19.4% and 25.0%, respectively. Under three modes such as no-tillage without wheat straw mulching, ridge tillage with wheat straw mulching and no-tillage with wheat straw mulching, yield of‘Yuanza 9307’was 13.8%, 9.9% and 15.8% higher than that of‘Yuanza 6’. Overall, peanut yield of‘Yuanza 9307’in ridge tillage with 4500 kg/hm2 wheat straw mulching was the highest of 4290.0 kg/hm2, which could improve soil physical and chemical properties, it could be recommended for application demonstration in peanut production.

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