The Effect of Water Deficit in Typical Soil Types on the Yield and Water Requirement of Soybean (<I>Glycine max</I> [L.] Merr.) in Indonesia

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概要

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• An experiment was conducted with the objective to investigate the influence of available water deficit in typical soil types on the yield and crop water requirement of soybeans in Indonesia. This research was conducted in a plastic greenhouse of the University of Lampung from June to August 2005. A factorial experiment was arranged in randomized block design with three replications. The soil type (S) was the first factor with two different soil types, Ultisol (S1), and Latosol (S2). Water deficit (D) was the second factor with five levels including D1 (0-20%), D2 (20-40%), D3 (40-60%), D4 (60-80%), and D5 (80-100%) of water deficit from the total available water (TAW). For example, D1 (0-20%) meant that water was given to maintain the available water depletion between 0% and 20% of TAW in the root zone. Yield under full irrigation in Ultisol (21.3 g/pot) was 2.3 times as much as in Latosol (9.3 g/pot). Yield efficiency (the ratio of yield to crop water requirement) in Ultisol was the greatest under deficit irrigation of 30% of available water deficit (0.0083 g/g), which was 1.26 times as much as under full irrigation (0.0066 g/g). However, yield efficiency of Latosol was the greatest under full irrigation (0.0049 g/g). Therefore, yield efficiency of soybean in Ultisol was 1.8 times as much as in Latosol.

• 独立行政法人　国際農林水産業研究センターの論文

著者

• Ito Kengo

  Faculty of Applied Biological Science, Gifu University

• Ito Kengo

  Faculty Of Applied Biological Science Gifu University

• Adomako John

  Faculty Of Applied Biological Science Gifu University

• Senge Masateru

  Faculty Of Applied Biological Science Gifu University

• ROSADI Raden

  Faculty of Agriculture, University of Lampung

関連論文

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• Effects of Water Stress on Soil Plant Analytical Development (SPAD) Chlorophyll Meter Reading and its Relationship to Nitrogen Status and Grain Yield of Soybean under Different Soil Types
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• Evaluation of the potentialities of different soil types to yield response of soybean under deficit irrigation
• The Influences of Organic Mulches on Soil Moisture Content and Temperatures : A Case Study of Tapioca Wastes Application
• The Effect of Water Deficit at Individual Growth Stages on the Yield and Water Requirement of Soybean (Glycine max [L.] Merr.)
• Estimating the Critical Water Content and Water Stress Coefficient of Soybean (Glycine max [L.] Merr.) in Andisol of Lampung Indonesia
• Effects of River Flow on Aquatic Insects in Upstream Ibi and Neo Rivers
• The mode of operation of a regulating reservoir for effective use of river flow
• Critical water content and water stress coefficient of soybean (Glycine max [L.] Merr.) under deficit irrigation
• The effect of water stress in regulated deficit irrigation on soybean yield (Glycine max [L.] Merr.)
• The Effect of Water Deficit in Typical Soil Types on the Yield and Water Requirement of Soybean (Glycine max [L.] Merr.) in Indonesia

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