Establishment of soil managements for moisture-nutrients and saline irrigation by drip method in sand fields

沙田水分养分土壤管理和滴灌盐灌的建立

• 批准号: 61860022
• 负责人: YAMAMOTO Tahei
• 金额: $ 5.25万
• 依托单位: Faculty of Agriculture, Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61860022/
• 关键词: saline irrigation; drip irrigation; soil management; leaching fraction; sub-irrigation; salt movement; nutrient movement; auto-radiography; 塩水潅漑; 点滴潅漑; 節水栽培; 地中潅漑; X線フィルム; リーチングフラックション; 水分プロフィル; 塩分プロフィル; RIトレーサー

From the studies during 1986-1988, the results were summarized as follows.1. Movements of moisture and salts under drip irrigation were discussed on the characteristics of (1) three-dimensional distribution in the dare sand field, (2) two-dimensional distribution in the bare sand field and (3) one-dimensional distribution in the root zone of sorghum.2. Leaching experiments on cotton cultivation were carried out using lysimeters in grass-house. The leaching ratios of soil salts showed 40% and 60% under the conditions of leaching fractions of 0.16 and 0.18, respectively. The cotton yields with the saline irrigation of 3,500 ppm decreased below a half of those obtained with non-saline irrigation.3. The movements of moisture and salts were discussed under the conditions of two irrigation methods of concentrated water supply and drip method, using the soil columns planted with vegetables in the growth cabinets. The drip method showed more efficient water use and higher salts concentration in the main root zones during active transpiration stage in a day.4. The methods of auto-radiography using isotope of^<45>Ca and image analysis were applied to the soil salts movement under the conditons of sand columns in the laboratory. It was established by these methods that salts were analyzed quantitatively without soil sampling and salt movements were traced hourly in the soil colomns.

从1986 - 1988年期间的研究中，结果总结如下1。讨论了（1）dare砂场中的三维分布的特征，（2）裸露的砂面中的二维分布，以及（3）高粱根部区域中的一维分布。2。使用草屋中的溶液计进行了有关棉花种植的浸出实验。土壤盐的浸出比分别为0.16和0.18的条件下显示40％和60％。盐水灌溉3500 ppm的棉花产量降低了一半通过非盐水灌溉获得的棉花。3。在两种灌溉方法的条件下，使用蔬菜中的土壤柱在生长柜中种植的土壤柱，讨论了水分和盐的运动。滴水方法在一天中的主动蒸腾阶段在主根区域中显示出更有效的用水量和较高的盐浓度。4。使用^<45> Ca的同位素和图像分析的自动射线照相方法应用于实验室的沙柱的孔子下的土壤盐运动。通过这些方法确定，对盐进行定量分析而没有土壤采样，盐运动在土壤colomns中每小时追踪。

项目成果

山本太平: 農土論集. 127. 1-9 (1987)

Taihei Yamamoto：农业和土壤研究集 127. 1-9 (1987)。

Hideyasu Fujiyama: Sail Sci.Plant Nutr.35(1). 203-210 (1989)

藤山英康：Sail Sci.Plant Nutr.35(1)。

山本太平: 農土誌. 57(1). 53-60 (1989)

山本泰平：Nodoshi 57(1)。

Hideyasu,Fujiyama: "Studies on responses of plants grown on sand dune soil to a nutrient solution applied by drip irrigation(1)-Relation between behaviors of nutrients in the soil and nutrients uptake by tomatoes" Soil Sci. Plant Nutr.35(1). 203-210 (1989

Hideyasu，Fujiyama：“沙丘土壤上生长的植物对滴灌营养液的响应研究（1）-土壤养分行为与番茄养分吸收之间的关系”土壤科学。

Tahei,Yamamoto: "Available rainfall and irrigation requirements for drip irrigation method(In Japanese)" Bulletin of Sand Dune Research Institute Tottori University. 28. 15-20 (1989)

山本太平：“滴灌法的可用降雨量和灌溉要求（日语）”鸟取大学沙丘研究所通报。