Study on wide ridge and double row planting of potato in Jianghan Plain
In the mechanized cultivation of potatoes,deep furrow and high ridge single row planting are the major cultiva-tion methods currently.However,machine raise to the specified ridge height is burden at once,hence requires secondary ridge raising.An experiment was set up in five regions of the Jianghan Plain where potatoes were planted with wide ridge and double row planting,aiming to increase the yield and reduce the requirement of secondary ridging operation.The ridge spacing were designed to be 1.0,1.1 and 1.2 m,and the double row spacing on the ridge were kept 0.15,0.18 and 0.21 m.The results show that when the ridge width was 1.1m and the double row spacing on the ridge was 0.15 m,the po-tato yield was the highest,with 2 417.41 and 2 440.30 kg·667 m-2,respectively.After comprehensive comparison,the au-thor found that the cultivation mode was 1.1 m× 0.23 m × 0.15 m performs well.In contrast to the manual single ridge sin-gle row,the cultivation mode 1.1 m × 0.23 m× 0.15 m has increased income by 16.92％per 667 m2.Similarly,the benefit is income by 55.90％per 667 m2 when compared to mechanical single ridge single row.Hence,this experiment is of great significance for standardizing the mechanized potato planting,reducing production costs,increasing yield,and promoting the integration of agricultural machinery with agronomy in Jianghan Plain of Hubei province.
PotatoWide ridge and double rowIntegration of agricultural machinery and agronomy
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