| 王志玉,刘作新.土壤改良剂MDM对草甸碱土和水稻生长的影响[J].干旱地区农业研究,2004,(2):31~34 |
| 土壤改良剂MDM对草甸碱土和水稻生长的影响 |
| Effect of soil conditioner MDM on meadow alkali soils and growth of rice |
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| DOI：10.7606/j.issn.1000-7601.2004.02.07 |
| 中文关键词: 土壤改良剂 水稻 草甸碱土 |
| 英文关键词:soil conditioner meadow alkali soil rice |
| 基金项目:中国科学院知识创新项目"典型农田生态系统水分运移与调控机理"专题(KZCX1-SW-19-2-01)；948项目"多功能土壤保湿剂"(991090) |
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| 中文摘要: |
| 研究了盆栽条件下,改良剂MDM对松嫩平原草甸碱土和水稻生长的影响。结果表明,施用MDM可显著改善草甸碱土的交换能力和降低土壤溶液的含盐量,与对照相比,经0.90L/m2MDM处理后的草甸碱土碱化度(ESP)降低了64.47%,水溶性盐中CO2-3含量降低了72.80%,Na++K+/Ca2++Mg2+降低了87.20%,土壤的电导率下降了27.18%,此外土壤的pH下降了0.5;改良剂的施用促进了水稻的生长发育,最终提高其产量,与对照相比,经0.90L/m2MDM处理后的水稻出苗率提高了14.29%,株高增加了36.19%,水稻的单株产量增加了117.43%。 |
| 英文摘要: |
| Effects of soil conditioner MDM on meadow alkali soil and the growth of rice were investigated by pot culture experiments. The results showed that MDM could obviously improve the exchange ability of meadow alkali soils and decrease salt content in soils. Compared to that of CK, ESP of the alkali soil treated by 0.90 L/m2 MDM was decreased by 64.47%, the content of CO2-3 and the ratio of Na++K+/Ca2++Mg2+ in water soluble salt were decreased by 72.80% and 87.20% respectively, the electrical conductivity of soil was decreased by 27.18%, and the pH value was decreased by 0.5. In addition, the application of MDM promoted the growth of rice and improved the production output. The emergence rate and the plant height of rice were increased by 14.29% and 36.19% respectively. The grain yield per plant was increased by 117.43%. |
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