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| 三段式心土混层犁及其改良白浆土效果的研究 | |
| 引用本文： | 刘峰,张玉龙,贾会彬,张洪权,张春峰,杨树纯,何宁,新家宪,工藤正义,河部弘道.三段式心土混层犁及其改良白浆土效果的研究[J].农业工程学报,2001,17(3):57-61. |
| 作者姓名： | 刘峰 张玉龙 贾会彬 张洪权 张春峰 杨树纯 何宁 新家宪 工藤正义 河部弘道 |
| 作者单位： | 1. 沈阳农业大学, 2. 黑龙江省农科院合江农科所, 3. Hejiang Agricultural Research Institute, Heilongjiang Academy of Agricultura l Sciences, 4. 黑龙江省农科院, 5. 日本专修大学环境科学研究所, |
| 基金项目： | 国家引智项目(99230007)、国家三江平原科技攻关资助项目(96-004)、农业部“948”项目(971065) |
| 摘 要： | 三段式心土混层犁为改造白浆土土体构型实现了“上翻20 cm，下混30～40 cm”的农艺要求，白浆层与淀积层的土壤混拌率Mx达到0.7，白浆层向淀积层的土壤转移率TAw→B达到了0.3。0～40 cm土层土壤物理性状明显改善，疏松透水，硬度下降，农田表涝现象得到缓解，效果持久稳定，连续4年测定，耕翻一次后至第4年其土壤硬度仍然明显低于常规耕作田块。1996年～1998年大面积示范试验，使用该犁耕翻地块作物增产达10%～27.9%。该犁作业幅宽50 cm，深度60 cm，总牵引阻力30～35 kN。 |
| 关 键 词： | 白浆土 土壤混拌率 心土混层犁 土壤改良 |
| 文章编号： | 1002-6819(2001)03-0057-05 |
| 收稿时间： | 2000/12/15 0:00:00 |
| 修稿时间： | 2000年12月15 |
Three-Stage Subsoil Mixing Plough and Its Improvement of Planosol |
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| Liu Feng,Zhang Yulong,Jia Huibin,Zhang Hongquan,Zhang Chunfeng,Yang Shuchun,He Nin,K. Arag,M. Kudoh and H. Kawabe.Three-Stage Subsoil Mixing Plough and Its Improvement of Planosol[J].Transactions of the Chinese Society of Agricultural Engineering,2001,17(3):57-61. | |
| Authors: | Liu Feng Zhang Yulong Jia Huibin Zhang Hongquan Zhang Chunfeng Yang Shuchun He Nin K Arag M Kudoh and H Kawabe |
| Abstract: | Based on the field tests and the investigations, a three-sta ge subsoil mixing plough, as a result of the international cooperation of China and Japan, was developed. This plough could meet the need for the improvement o f Planosol solum by mixing the second (Aw) and Third (B) horizons, while leaving the first (Ap) horizon undisturbed. The mean soil mixing rate, M x was 0.7 and the mean transfer rate of the Aw to the B horizon, T Aw→B was a bout 0.3. With the working width of 50 cm and the working depth of 60 cm, the to tal draught of the plough was about 30 kN under the normal field moisture condit ion. This draught requirement made the plough easily use in practice in China. I n the field operated by the plough, good results for the soil physical propertie s were achieved. During the wet season, the excessive soil surface water could q uic kly penetrate into the subsoil. No recovery of soil hardness was observed after ploughing for four years, and hence the long term soil improvement was achieved. The yield increasing rate was 10%～27.9%, according to the large-scale extensi on tests. |
| Keywords: | planosol soil mixing rate subsoil mixing plough soil improvement |
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