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为了确定四种硫(S)源不同的施用量对小麦的元素组成和土壤硫含量的作用,我们进行了为期两年的田间试验。试验结果表明,无论施哪种硫肥,都能提高植株中硫的含量。同时,由于硫肥的施用,也都能降低植株中磷的含量。然而,增施硫对植株中铜、钙、镁和氮的含量并不产生重大影响。而植株中锰、锌和铁含量,却因施用硫源不同而不同,或者增加,或者减少。对粉砂壤土0--90厘米深的土层分析表明:施入土壤表层的硫,容易向较深层移动。同时也表明:以元素硫的形式施入土壤,要比以可溶性的形式施入的硫移动稍慢些。
To determine the effect of different amounts of four sulfur (S) sources on wheat elemental composition and soil sulfur content, we conducted a two-year field trial. Test results show that no matter what kind of sulfur fertilizer, can increase the sulfur content in plants. At the same time, due to the application of sulfur fertilizer, can also reduce the phosphorus content of plants. However, the addition of sulfur did not have a significant effect on the copper, calcium, magnesium and nitrogen content of the plants. However, the contents of manganese, zinc and iron in the plants are different, increased, or decreased due to the different sources of sulfur used. Analysis of the soil layer 0-90 cm deep for silty loam showed that the sulfur applied to the surface of the soil tends to move deeper. It also shows that the elemental sulfur applied to the soil is slightly slower than the sulfur applied in a soluble form.