首页>
美国卫生研究院文献>Scientific Reports
>Effect of Nitrate Leaching Caused by Swine Manure Application in Fields of the Yellow River Irrigation Zone of Ningxia China
【2h】
Effect of Nitrate Leaching Caused by Swine Manure Application in Fields of the Yellow River Irrigation Zone of Ningxia China
A five-year swine manure application trial and a study of nitrate leaching losses have been conducted. There were three treatments: traditional without manure (CK), traditional matched manure 4500 kg ha−2 (T1) and traditional matched manure 9000 kg ha−2 (T2). Nitrate nitrogen leaching losses at the 30-, 60-, and 90-cm soil layers were measured using the resin core method. The results indicate that the swine manure application did not noticeably increase soil nitrate leaching losses in the 30-cm layer. T1 (16.85 ± 0.40 kg ha−2) and T2 (17.01 °C0.46 kg ha−2) were not significantly different than CK (15.96 ± 0.41 kg ha−2) (P < 0.05), which was also the case at the 60-cm layer. However, there are significant differences between the treatments and CK at the 90-cm layer, although there were no significant differences between T1 and T2 in that layer. The application of manure can increase soil organic matter (SOM) and total nitrogen (TN). The SOM of T1 and T2 were increased to 0.95 g kg−1 and 1.41 g kg−1, respectively. The TN values of CK, T1 and T2 were 0.72, 0.78 and 0.88 g kg−1, respectively, in the 0 to 30 cm layer, and were improved by 7.72% and 22.04%.
展开▼
机译：进行了一项为期五年的猪粪施用试验，并研究了硝酸盐淋失的研究。共有三种处理方法：传统无肥（CK），传统匹配肥4500 kg ha -2 （T1）和传统匹配肥9000 kg ha -2 （T2）。使用树脂芯法测量30、60和90厘米土壤层的硝酸盐氮淋失量。结果表明，施用猪粪肥不会显着增加30 cm层土壤硝态氮的淋失量。 T1（16.85±0.40 kg ha −2 ）和T2（17.01 C0.46 kg ha -2 ）与CK（15.96±0.41 kg ha −2 ） sup> -2 ）（P <0.05），在60-cm层也是如此。但是，尽管在该90 cm层的处理与CK之间存在显着差异，但是在该层的T1和T2之间没有显着差异。施用肥料可以增加土壤有机质（SOM）和总氮（TN）。 T1和T2的SOM分别增加到0.95 g kg -1 和1.41 g kg -1 。在0至30 cm层中，CK的TN值，T1和T2的TN值分别为0.72、0.78和0.88 g kg -1 ，分别提高了7.72％和22.04％。
展开▼
