熟土

因此，沟膜+聚40cm厚度熟土处理，可作为该区旱作高效种植模式，能获得8277.8kg/hm2的较高产量。

In the trial , the methods of film mulching over furrow and increasing surface soil thickness to 40 cm may be used as a planting mode for effective dryland production , and reached 8 277.8 kg / hm2 .

污泥对石灰性熟土和生土肥力与重金属铜锌含量的影响

Effects of Sewage Sludge on Fertility and the Content of Copper and Zinc in Calcareous Immature and Mellow Soil

利用油菜盆栽试验研究了不同用量垃圾对石灰性生土和熟土全量养分、速效养分和油菜产量的影响。

A pot experiment was conducted to study the effects of different municipal garbage application rates on the contents of soil OM , total nutrients , and available nutrients in both calcareous immature soil and mellow soil and on the growth of rape .

采用油菜盆栽试验，研究了施用污泥对石灰性生土和熟土有机质、全量和速效养分及重金属铜锌含量的影响。

This paper studied the effects of sewage sludge on soil OM , total N , P , K and available N , P and K and the content of copper and zinc in Calcareous immature and mellow soil by pot experiment of rape .

随着污泥施用量的增加，生土和熟土中全铜和锌含量均有所增加，且生土中全铜和全锌含量的增加比熟土更明显，但都远低于国家农田土壤质量控制标准（GB15618&1995）。

The content of Cu and Zn increased with the increase of application quantity of sewage sludge and content in the immature increased more significantly than in the mellow soil , yet the level were all within the allowed limit of our country standard ( GB 15618 & 1995 ).