| 袁苗苗,向春阳,赵秋,史昕倩,董家僖,田秀平.翻压9种春油菜对潮土有机质及其氧化稳定性的影响[J].干旱地区农业研究,2022,40(1):213~220 |
| 翻压9种春油菜对潮土有机质及其氧化稳定性的影响 |
| Effects of nine varieties of return to field spring rape on organic matter and oxidation stability of tidal soil |
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| DOI：10.7606/j.issn.1000-7601.2022.01.24 |
| 中文关键词: 春油菜 翻压 土壤有机质 腐殖质 氧化稳定性 |
| 英文关键词:spring rape return to field soil organic matter humus oxidation stability |
| 基金项目:国家绿肥产业技术体系项目（CARS-22） |
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| 中文摘要: |
| 为了提高华北地区土壤有机质含量，改善有机质品质，提高土壤肥力，开展了9种春油菜翻压对土壤有机质及其氧化稳定性影响的研究。结果表明：春油菜生物量以中油肥1901最高，植株含碳量中油肥1904最高（69.51%），中油肥1901次之（65.06 %），春油菜总碳输入量以中油肥1901最高（4 662.25 kg·hm-2）；春油菜翻压均可显著（P＜0.05）提高土壤有机质、腐殖质及易氧化有机质的含量，降低Kos值，以中油肥1901和中油肥1907增加土壤有机质最多，均比翻压春油菜前增加7.24 g·kg-1，腐殖质含量和易氧化有机质也是中油肥1901增加最大，较春油菜翻压前分别增加了11.24 g·kg-1和16.55 g·kg-1，显著高于其他品种，春油菜品种翻压后土壤有机质Kos值均显著低于对照，下降较多的是中油肥1901、中油肥1906和中油肥1907，显著低于其他品种；土壤有机质、腐殖质和易氧化有机质与春油菜生物量和春油菜总碳输入量之间呈极显著正相关，土壤有机质、腐殖质和易氧化有机质间相关性均达到呈极显著水平；灰色关联度综合评价得出，供试9个春油菜品种中，中油肥1901培肥土壤的效果最好，其次是中油肥1907。 |
| 英文摘要: |
| To increase the content of soil organic matter, organic matter quality and soil fertility in northern China, a field experiment was carried out to examine the impact of returning different cultivated varieties of spring rape to field on soil organic matter and its oxidation stability. The results showed that Zhongyoufei 1901 had the highest biomass. Zhongyoufei 1904 had the highest plant carbon content (69.51 %), followed by Zhongyoufei 1901 (65.06 %). The highest total carbon output of spring rape was Zhongyoufei 1901 (4 662.25 kg·hm-2). Spring rape significantly increased the content of soil organic matter, humus and easily oxidized organic matter, and reduced the Kos values. Different varieties of spring rape had different performances. Of which Zhongyoufei 1901 and Zhongyoufei 1907 increased the soil organic matter the most, which both increased by 7.24 g·kg-1 compared with prior to returning spring rape to field. The humus content and easily oxidized organic matter had also the largest increase in Zhongyoufei 1901, which increased by 11.24 g·kg-1 and 16.55 g·kg-1 respectively compared with prior to returning spring rape, which was significantly higher than other varieties. The soil organic matter Kos value of different rape varieties was significantly lower than that of the control after returning to field, and the decline was significant in Zhongyoufei 1901, Zhongyoufei 1906 and Zhongyoufei 1907. Soil organic matter, humus and easily oxidized organic matter were extremely positively and significantly correlated with spring rape biomass and total carbon input. There were also extremely significantly and positively correlations between soil organic matter, humus and easily oxidized organic matter. Comprehensive evaluation of gray correlation degree indicated that among nine spring rape varieties in the experiment, Zhongyoufei 1901 had the best effect on soil fertility, followed by Zhongyoufei 1907. |
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