Effect of Corn Straw-Bentonite-Polyethylene on Physical Properties of Sandy Soil

Abstract:

In recent years, a variety of soil amendments came out and achieved certain results in the modification of desertification soil. However, most soil amendments belong to chemical product. They’re cost and produce secondary pollution easily. In order to further study on the measures to improve degeneration soil, make full use of renewable resources, and minimize secondary pollution, corn straw, bentonite and PAM were used simultaneously in the pot experiment to explore their synergic effect on the structure of sandy soil. In this test, corn straw is selected as the research objects. Different amounts of straw modified materials are applied in the pot experiment. Physical properties such as pH, bulk density, and aggregates were analyzed at 10 days, 30 days, 60 days and 90 days. Results showed that under the condition of different additions and doses of straw modified material, with the increase of PAM, the straw modified material did not have significant influence on pH value of sandy soils. Bulk density of the sandy soil decreased under the effect of the straw modified material. The higher the doses, or the more the content of PAM (but still<2%), the more apparently the bulk density decreased. With the increase of time, bulk density of the soil first increased and then decreased, reaching minimum at 60 days. The content of 1~5 mm aggregate increased obviously at 90 days with the addition of modified material, which was 2.12 times of control value. With the increase of content of PAM (<2%), the content of 1~5 mm aggregate increased gradually. When the content of PAM continued to increase (reaching 3%), the content of 1~5 mm aggregate decreased instead. Effect of straw modified material on sandy soil was optimum under the condition of corn straw, bentonite (albany grease, 200 item) and PAM (anionic poluacrylamides, 1.0×107 daltons, and solution 30%) 900:100:20, 10g/5kg for 60 days of pot experiment.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 4687-4694
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.4687
• Online since: May 2012
• Authors: Ming Ma, Ding Yong Wang, Rong Guo Sun
• Keywords: Bentonite-PAM Modified Material, Corn Straw, Physical Properties, Sandy Soil

References

[1] State Forestry Administration.The Bulletein of Status Quo of Disertification and Sandification in China (R). (2011), p.19.

[2] Yiqun Chen, Yuanhua Dong. Ecology and Environment, 17(3), 1282-1289.(2008), p.1282, 1284-1285. (in Chinese)

[3] M. Benkhelifa, M. Belkhodja, Y. Daoid, Tessier. Pakistan Journal of Biological Sciences, 11(1), 17-25. (2008), p.23.

[4] W. J. Busscher, J. M. Novak, T. C. Caesar-TonThat, R. E. Sojka. Soil Science, 172(8), 651-658. (2007), p.657.

DOI: 10.1097/ss.0b013e3180601266

[5] Lihua Cao, Shiwei Zhao, Xiangfeng Liang, Heman Liu, Yonghui Yang, Yonggang Zhao. Transactions of the Chinese society of agricultural engineering, 24(1), 45-49. (2008), p.48. (in Chinese)

[6] M. I. Choudhary, A. M. Al-Omran, A. A. Shalaby. Agricultural Sciemce, 3, 69-74. (1998), p.74.

[7] J. Croker, R. Poss, C. Hartmann, S. Bhuthorndharaj. Plant and Soil, 267, 155–163. (2004), p.62.

[8] Lili Cui, Jijin Li, Guoyuan Zou, Yyuguang Wu, Shichuan Xue. Acta Agricultural Boreali-Sinica, 19(2), 76-80.(2004), p.79. (in Chinese)

[9] R. D. Lentz, R. E. Sojka. Transactions of the ASABE, 43(6), 1561-1568. (2000), p.1567.

[10] Jijin Li, Qiuming Xu, Xiaohui Ni, Wenhuan An, Guangyu Liu. Acta Agricultural Boreali-Sinica, 17(2), 88-89.(2002), p.89. (in Chinese)

[11] Jigen Liu, Tingwu Lei. Transactions of the CSAE, 18(6), 59-62. (2002), p.61. (in Chinese)

[12] Ruifeng Liu, Junping Zhang, Xin Zheng, Aiqin Wang. Soils, 38(1), 86-91. (2006), p.90. (in Chinese)

[13] Mingjie Long, Hongwei Zhang, Zhiquan Chen, Gang Chen, Fansen Zeng. Chinese Journal of Soil Science, 33(1), 9-13.(2002), p.12. (in Chinese)

[14] A. Nadler, E. Perfect, B. D. Kay. Soil Science Society of America journal, 60(2), 555-561. (1996), p.560.

[15] R. E. Sojka, Bjorneberg D L, Entry J A, Lentz R D, Orts W J. 2007. Advances in Agronomy, 92, 75-162.

DOI: 10.1016/s0065-2113(04)92002-0

[16] Mingjin Yang, Bo Zhang, Haijun Wang, Linghua Ju. Chinese Journal of Soil Science, 40(4), 747-750. (2009), p.749. (in Chinese)

[17] Xuefeng Yuan, Youjin Wang, Pute Wu, Hao Feng. Journal of Soil and Water Conservation, 19(2), 37-40. (2005), 39. (in Chinese)

[18] Wusi Wei. Effect of straw modified material on structure and water characteristics of sandy soil.(2009). pp.46-47. (in Chinese)

[19] S. M. Aly, J. Letey. Soil Science Society of America Journal, 54(2), 501-504. (1990), p.503.

[20] A. M. Helalia, J. Letey, R. C. Graham. Soil Science Society of American Journal, 52(1), 251-255. (1988), pp.253-254.

[21] H. Palonen, A. B. Thornsen, M.Tenkanen. Applied Biochemistry and Biotechnology, l17(1), 1-17. (2004), pp.14-15.

[22] S. Recous, C. Aita, B. Mary. Soil Biology and Biochemistry, 31(1), 119-133. (1999), p.131.