湘南丘岗红壤旱地节水与培肥措施的研究

A study of measures of saving water and enhancing soil fertility in red soil upland field in southof Hunan

采用大田试验研究了聚垄、撩壕、盖草、覆膜４种耕种方式对湘南丘岗红壤旱地节水与培肥的影响．结果表明：聚垄、撩壕、盖草和覆膜处理均能提高土壤的含水量，其中节水效果以覆膜处理最佳，其余依次是盖草、撩壕和聚垄处理．同时，上述４种处理对培肥土壤也有一定的作用．与对照（平作）相比较，４种处理均能促进作物的生长发育，提高产量，增加产值，各处理净产值大小顺序依次为覆膜、盖草、撩壕。

Effects of four tillage types on saving water and enhancing soil fertility in red soil upland field in Hunan have been studied by field experiment.Results of the trial show that planting on mounds,digging deeply,covering straw and covering plastic film treatments can enhance moisture of soil.But Water saving effect of covering plastic film is the best,covering straw better. These treatments can enhance soil fertility.Compared with contrast,planting on mounds,digging deeply,covering straw and covering plastic film treatments can promot growth of crop,and also enhance output of crop and output value.The order of net output value of five treatmentes is covring plastic film,covering straw,digging deeply,planting on mounds and contrast.