| 田菁改良重度盐渍化土壤的效果分析 |
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| 引用本文： | 谢文军,王济世,靳祥旭,张衍鹏,武兰芳,欧阳竹. 田菁改良重度盐渍化土壤的效果分析[J]. 中国农学通报, 2016, 32(6): 119-123. DOI: 10.11924/j.issn.1000-6850.casb15080103 |
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| 作者姓名： | 谢文军 王济世 靳祥旭 张衍鹏 武兰芳 欧阳竹 |
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| 作者单位： | (;1.滨州学院分析测试中心,山东滨州 256603；;2.中国科学院地理科学与资源研究所,北京 100101） |
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| 基金项目： | 国家“十二五”科技支撑计划项目“渤海粮仓科技示范工程”(2013BAD05B03)；山东省重点研发计划项目“滨海盐渍化土壤秸秆培肥抑盐关键技术研发与应用示范”(2015GNC111006)；滨州市渤海粮仓科技示范工程建设领导小组办公室研究项目“盐渍化农田土壤肥力状况及变化趋势研究”(2015BHLC003)。 |
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| 摘 要： | 为评价田菁改良重度盐渍化土壤的效果，试验设置4个处理：（1）只种植田菁(T)；（2）种植田菁，施用二铵450 kg/hm2(TA)；（3）种植田菁，施用磷石膏2250 kg/hm2(TG)；（4）不种植田菁的空白处理作对照(CK)。结果表明：施用磷石膏能够显著促进田菁生长(P<0.05)，TG处理地上部、地下部生物量较T、TA处理分别增加了14.24%、24.77%和8.32%、12.39%，施用二铵对田菁生长的促进作用不显著。种植田菁能够显著降低重度盐渍化土壤含盐量、容重，提高土壤速效氮、速效钾、水溶性有机质(DOC)含量，及土壤大团聚体含量、平均重量直径(MWD)、总孔隙度(P<0.05)，TG处理改良效果最大。相关分析表明，盐渍化土壤含盐量、Na+含量、DOC、有机质是维系盐渍化土壤结构的关键性状，降低土壤含盐量、Na+含量，提高DOC、有机质含量是盐渍化土壤改良方向。种植田菁，同时施用磷石膏是一种快速提升重度盐渍化土壤肥力的有效方法。
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| 关 键 词： | 张家界国家森林公园 张家界国家森林公园 旅游开发 植物生境 植物多样性 |
| 收稿时间： | 2015-08-19 |
| 修稿时间： | 2016-01-27 |
Effect of Sesbania cannabina Cultivation on Severe Salinity Soil Fertility Improvement |
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| Xie Wenjun,Wang Jishi,Jin Xiangxu,Zhang Yanpeng,Wu Lanfang and Ouyang Zhu. Effect of Sesbania cannabina Cultivation on Severe Salinity Soil Fertility Improvement[J]. Chinese Agricultural Science Bulletin, 2016, 32(6): 119-123. DOI: 10.11924/j.issn.1000-6850.casb15080103 |
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| Authors: | Xie Wenjun Wang Jishi Jin Xiangxu Zhang Yanpeng Wu Lanfang Ouyang Zhu |
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| Affiliation: | (;1.Instrumental Analysis & Research Centre, Binzhou University, Binzhou Shandong 256603;2.Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101) |
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| Abstract: | In order to study the effect of Sesbania cannabina cultivation on severe salinity soil fertility improvement, four treatments were designed: (1) Sesbania cannabina cultivation (T); (2) Sesbania cannabina cultivation and diammonium phosphate applied at the rate of 450 kg/hm2 (TA); (3) Sesbania cannabina cultivation and phosphogypsum applied at the rate of 2250 kg/hm2 (TG); (4) without Sesbania cannabina cultivation (CK). The results showed that phosphogypsum application could significantly promote the growth of Sesbania cannabina (P<0.05). Compared with that of T and TA treatment, the biomass of the aboveground part and underground part of TG treatment increased 14.24%, 24.77% and 8.32%, 12.39%, respectively, and the improving effect of diammonium phosphate application on Sesbania cannabina cultivation was not significant. Sesbania cannabina cultivation could significantly decrease soil salt content, bulk density, and significantly increase available nitrogen, available potassium, dissolved organic C (DOC), macro-aggregate content, mean weight diameter (MWD) and total porosity (P<0.05), the improving effect of TG was the best. The correlation analysis showed that soil salinity, Na concentration, DOC and organic matter content played an important role in the regulation of salinity soil structure. The improving methods included decreasing soil salinity and Na concentration, and increasing DOC and organic matter content. Sesbania cannabina cultivation with phosphogypsum application was an efficient method to improve the fertility of severe salinity soil. |
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| Keywords: | soil fertility improvement Sesbania cannabina biomass phosphogypsum salinity |
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