Development of Nutrient Dispersion Analysis Technology for Sustainable Procuction System

可持续生产系统养分扩散分析技术的开发

• 批准号: 07556020
• 负责人: OKAZAKI Masanori
• 金额: $ 0.96万
• 依托单位: Tokyo University of Agricilture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07556020/
• 关键词: symbiotic production system; nutrient elements; diffusion; monitoring; tension; electrical conductivity; porous cup; 4 electrode sensors; 降下物; 窒素; リン; カリウム; 流入; 水分フラックス; イオン移動; 牧草地; 土壌溶液; カルシウム; 水分移動; テンシオメータ; シミュレーション

The objectives of this study are to determine the input and output budget of nutrient elements in agro-ecological systems and to develop a new teclhnology for sustainable production systems based on the methods to analyze the dispersion of nutrient elements.1) Since fifteen % of nitrogen application in grassland throughout a year was deposited fraom the atmosphere, a new nitrogen application should be developed.2) The automatic tension determination system using a porous cup connected to a pressure converter and the automatic electrical conductivity determination system using 4 electrode sensors were adopted to monitor water and ions behavior in soil. Potassium (1.0 molL^<-1> KCL solution) diffused in Melanudands moved within 120 cm accompanied with soil water in three dimension during 2 months, indicating that potassium was diffused, depended on the different diffusion rate and mechanism.3) Potassium movement in one and two dimension direction of soil column in an experimental room was determined with water tension meter and 4 electrode sensors, which simulated the behavior of potassium.These results became a basidc data in order to make a new management system to minimize the impact of environment.

本研究的目的是确定农业生态系统中营养元素的输入和输出收支，并在分析营养元素扩散的基础上，发展一种新的可持续生产系统技术。1）由于草地全年施氮量的15%来自大气，应开发新的氮肥施用方法。采用多孔杯连接压力转换器的张力自动测定系统和4电极传感器的电导率自动测定系统，土壤在<-1>两个月的时间里，1.0molL的KCl溶液在Melanudands土壤中扩散，在120cm范围内随土壤水分向三维方向移动，说明钾是以不同的扩散速率和扩散机制扩散的。3）利用水张力仪和4个电极传感器测定了实验室土柱中钾在一维和二维方向上的移动，这些结果为建立新的管理体系以减少对环境的影响提供了基础数据。

项目成果

Sugie,M.: "Experimental study for determining electric Conductivity of electrolytes solutions containing suspended clay minerals." Soil Phys.Cond.Plant Growth,Jpn.75. 47-57 (1996)

Sugie,M.：“测定含有悬浮粘土矿物的电解质溶液电导率的实验研究。”

Yamaguchi, N.: "Volume changes in an aqueoas saspension of amorphous Iron(III) hydroxidedue to the adsorption of phosphate (M_2PO_4^-)" J.Colloid and Intertace Science. 183. 280-284 (1996)

Yamaguchi, N.：“由于磷酸盐 (M_2PO_4^-) 的吸附，无定形氢氧化铁 (III) 的水悬浮液中的体积变化”J.Colloid and Intertace Science。

Okazaki, M., Watanabe, N., Kato, M., Takahashi, H.and Tian, K.X.: "Characteristics of salt-affected soils in Huang-Huai-Hai region of China" Res.UNESCO's Man and Biosphere Prog.Jpn.1995-1996. 11-16 (1997)

Okazaki, M.、Watanabe, N.、Kato, M.、Takahashi, H. 和 Tian, K.X.：“中国黄淮海地区盐渍土壤的特征” Res.UNESCO 人与生物圈 Prog.Jpn

Yamaguchi, N., Okazaki, M.and Hashitani, T.: "Proton consumption with phosphate adsorption on amorphous Fe (III) hydroxide" J.Soil Sci.Plant Nutr.42. 681-690 (1996)

Yamaguchi, N.、Okazaki, M. 和 Hashitani, T.：“无定形 Fe (III) 氢氧化物上磷酸盐吸附的质子消耗”J.Soil Sci.Plant Nutr.42。

Okazaki,M.: "Quality of ground water in salt-affectid areas of Nanpi,China" Res.UNESCO'S Man and Biosphere Prog.Jpn.1996-1997. 49-54 (1998)

Okazaki,M.：“中国南皮盐害区地下水质量”Res.UNESCOS Man and Biosphere Prog.Jpn.1996-1997。