The Influence on Apparent Uptake of N, P and K Element of Loium Perenne by Homemade Controlled-Release SAP

Abstract:

In order to resolve problem of integration of SAP(super absorbent polymer) and fertilizer, in this paper, controlled-release SAP was applied to research the rule of apparent uptake on the nitrogen, phosphorus and kalium nutrient elements by method of nutrient standardization which can provide for theory basis. The result showed that all different treatments on annual lolium perenne had a positive in absorbing nitrogen elements; between kalium and phosphorus nutrition elements had significant negative correlation, correlation coefficient above-0.90.Treatments of FER and YFISJ greatly improved content of nitrogen, phosphorus nutrition elements in lolium perenne, but also were greatly reduce to kalium element absorption. Meanwhile, treatments of different particle sizes of SAP improved obviously absorption of nitrogen and kalium element, phosphorus element of absorption was inhibited. Compound SAP improve nitrogen element apparent top utilization rate of 197%, improve phosphorus element apparent top utilization rate reaches 183% hydration, but reduces the kalium element absorption topped - 187%. The conclusions show that nutrients standardization method cans effective to compare and analysis with nutrients uptake among different treatments. Homemade controlled-release SAP can dramatically improve part of nutrition utilization.

• Periodical: Applied Mechanics and Materials (Volumes 195-196)
• Pages: 1194-1199
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.195-196.1194
• Online since: August 2012
• Authors: Zheng Wen Yue, Bai Tian Wang, Hao Yang, Hong Liu Wang
• Keywords: Apparent Uptake, Controlled-Release SAP, Fertilizer, Loiun Perenne, Saving Water

References

[1] Qin Dahe. Climate Change and Drought. science&technology [J]. Forword. 2009, 11(2).

[2] Zeng Qun, Cai Su-ming, Du Yun. Global climate change on the potential impact of water resources. Resources Environment and Development[J]. 2006. 1(11).

[3] Wang Yue-xiang. Research advance in slow/controlled-release fertilizers. Chemical Intermediates[J]2010. 3.

[4] Cui Yuting. Fertilizers and ecological environment protection [M]. Beijing: Chemical Industry Press. 2000, 5～10.

[5] Fanta G F, Robert C Burr, Doane W M, et al. Graft copolymers by simultaneous 60Co-irradiation of starch, acrylamide, and N, N, N-Trimethylaminoethyl MethacrylateMethyl sulfate[J] . J Appl Polym Sci, 1974, 18: 2205- 2209.

DOI: 10.1002/app.1974.070180726

[6] Levy，J Levin，M Ben -Hur. Polymers effects on infiltration and soil erosion During simulated sprinkle irrigations. [J]. 1992 56：902 ～907.

DOI: 10.2136/sssaj1992.03615995005600030037x

[7] Huang Zhanbin , Zhang Guozhen , Li Yangyang, Hao Mingde , Meni Ben Hur , Deli Chen. Characteristics of Aquasorb and Its Application in Crop Production [J]. Transactions of the Chinese Society of Agricultural Engineering, 2002, 18(1): 22-26.

[8] He Xusheng, Zhang Fudao. Characteristics and performance of water-adsorbent polymer coated urea. [J]. Plant Nutrition And Fertilizer Science, 2005, 11(3): 334-339.

[9] Johnson M S. Effect of soluble salt s on water absorption by gel forming soil conditioners [J] . J Sci Food Agr ic, 1984, 35: 1063- 1066.

DOI: 10.1002/jsfa.2740351004

[10] Bowman D C, Evans R Y. Calcium inhibition of polyacrylamide gel hydration is partly reversible by potassium [J]. Hortscience, 1991, 26 (8) : 106321065.

DOI: 10.21273/hortsci.26.8.1063

[11] Michael S Johson , Cornelis J Veltkamp. Structure and functioning of water-storing agricultural polyacrylamides [J]. J Sci Food Agri , 1985 , 36 : 789 —793.

DOI: 10.1002/jsfa.2740360905

[12] LI Shi-kun, MAO Xiao-yun, LIAO Zong-wen. StudyonWater-Fertilizer Controlling Effect and Efficiency of Complex Super Absorbent Polymers in Soil. Journal of Soil and Water Conservation[J]. 2007(4).

[13] Song Yonglin, Yao Zhaohua, Yuan Fengming. The effect of apparent utilization of different fertilizers on soil nutrient content and crop mainly nitrogen, phosphorus and potassium. Soil and Fertilizer [J]. 2002(3).

[14] Janjun Du, Chunlin Gou, Yingde Cui, Dong Qu. Effects of Water Retaining Agent on Ammonia Volatilization and Nutrient Leaching Loss from N, P and K Fertilizers. Journal of Agro-Environment Science[J]. 2007, 26(4): 1296-1301.