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我省处于亚热带向暖温带过渡地区,光热资源丰富,年平均气温12—15℃,无霜期190—230天,年平均降雨量600毫米左右,但分布很不均匀,夏季降雨量占总降水量的45—60%,常年发生春旱和初夏旱。并出现地区性的旱涝灾害,以旱灾最为突出。甘薯具有较强的耐旱力,是我省丘陵及平原旱地的主要粮食作物之一,约1,500万亩。现将我省旱地甘薯高产的主要抗旱栽培措施介绍如下,供参考。
The province is in the subtropical transition to warm temperate zone, rich in light and heat resources, the annual average temperature of 12-15 ℃, frost-free period 190-230 days, the average annual rainfall of about 600 mm, but the distribution is uneven, the summer rainfall in total precipitation 45-60%, perennial spring drought and early summer drought. And there are regional droughts and floods, most notably drought. Sweet potato has strong drought resistance, is one of the main food crops in the hilly and plain drylands of our province, about 15 million mu. The dry cultivation of sweet potato in our province now drought-resistant cultivation practices are as follows, for reference.