Phosphorus Application Affects Root Length Distribution and Water Uptake of Upland Rice in a Column Experiment(Soil Fertility)

スポンサーリンク

概要

• 論文の詳細を見る

• We investigated the effect of basal phosphorus application at 0-0.2 m depth (-P : 0 kg ha^<-1>, +P : 120 kg P_2O_5 ha^<-1>) on the root system development and water uptake pattern of upland rice (Oryza sativa L.). Applications were made to P-deficient soil, and plants were either irrigated or nonirrigated (subjected to short-term mild soil water stress) at the panicle initiation stage. P application enhanced the growth of nodal roots and medium-sized lateral roots (80-220 μm in size). In the +P plants, root length per layer was longer in all the soil layers (p<0.01) and the percentage of the total root length located below 0.2 m depth was higher (-P : 18%, +P : 24%). Under irrigated conditions, most of the water was extracted from 0-0.2 m depth regardless of the P level, and the water uptake rate from this layer and hence the total amount of water was higher in the +P than in the -P plants. Under water stress conditions, the water uptake at 0-0.2 m depth was lower than that under irrigated conditions, while the water uptake below 0.2 m depth was higher than that under irrigated conditions during the 0-2 d period after the imposition of stress in both -P and +P plants. Under water stress, since the water uptake from below 0.2 m depth was higher in the +P than in the -P plants, the total amount of water was higher in the +P plants. By promoting the development of deeper root systems and improving the water uptake below 0.2 m depth, basal P application at 0-0.2 m was found to be important for increasing the total water uptake by upland rice under mild soil water stress in phosphorus-deficient soils.

• 社団法人日本土壌肥料学会の論文

著者

• Kakuda Ken-ichi

  Faculty of Agriculture, Yamagata University

• Ando H

  Faculty Of Agriculture Yamagata University

• Ando Ho

  Department Of Agronomy Faculty Of Agriculture Tohoku University

• Kondo M

  International Rice Research Institute:(present Address)national Agricultural Research Organization N

• Kondo Motohiko

  National Institute Of Crop Science

• Kondo Motohiko

  International Rice Research Institute:(present Address)department Of Soil And Fertilizer National Ag

• Kakuda K

  Faculty Of Agriculture Yamagata University

• Okada Kanako

  International Rice Research Institute

• Kakuda Ken-ichi

  Department of Agronomy, Yamagata University

• Okada K

  International Rice Research Institute:(present Address)department Of Agronomy Yamagata University

• Kondo Motohiko

  International Rice Research Institute Los Banos

関連論文

• Relationship between mineral composition or soil texture and available silicon in alluvial paddy soils on the Shounai Plain, Japan(Soil Fertility)
• Kinetic Parameters of Gross N Mineralization of Peat Soils as Related to the Composition of Soil Organic Matter (Soil Fertility)
• Nutrient Availability and Response of Sago Palm (Metroxylon sagu Rottb.) to Controlled Release N Fertilizer on Coastal Lowland Peat in the Tropics
• 2-25 The effect of organic matter composition on kinetic of gross nitrogen mineralization of peat soils.
• Incorporation of Nitrogen from Urea Fertilizer into Soil Organic Matter in Rice Paddy and Cassava Upland Fields in Indonesia
• Mineralogical and Agrochemical Properties of Kawatabi Volcanic Ash Soil.
• Contribution of Nitrogen Absorption by Rice Plants and Nitrogen Immobilization Enhanced by Plant Growth to the Reduction of Nitrogen Loss through Denitrification in Rhizosphere Soil
• Morphological and Anatomical Observations of Adventitious and Lateral Roots of Sago Palms
• Fate of Basal N and Growth of Crops Cultivated under Cassava-Based Intercropping System with Reference to K Application Rate
• Seedling Establishment of Anoxia-Tolerant Rice (Oryza sativa L.) as Affected by Anaerobic Seeding in Two Different Soils
• Effect of Volatile Fatty Acids on Seedling Growth of Anoxia-Tolerant Rice (Oryza sativa L.) Genotypes
• Root-Shoot Interaction as a Limiting Factor of Biomass Productivity in New Tropical Rice Lines(Plant Nutrition)
• 11-8 Root activity and biomass productivity of new type of tropical rice plant
• 11-19 Relationships between stem sap exudation and other root characteristics in new plant type of tropical rice
• Phosphorus Application Affects Root Length Distribution and Water Uptake of Upland Rice in a Column Experiment(Soil Fertility)
• Water Uptake under Water Stress at Panicle Initiation Stage in Upland Rice as Affected by Previous Soil Water Regimes
• 20-9 Dynamics of available nitrogen in soil and nitrogen uptake by rice in upland fields in the Philippines
• Anatomy of Nodal Roots in Tropical Upland and Lowland Rice Varieties
• Relationship between Ammonium Nitrogen in Soil Solution and Tiller Number at Early Growth Stage of Rice
• Characterization of Starch Granules in Rice Culms for Application of Rice Straw as a Feedstock for Saccharification
• Efficient Recovery of Glucose and Fructose via Enzymatic Saccharification of Rice Straw with Soft Carbohydrates
• Growth and Canopy Structure of Rice Plants Grown under Field Conditions as Affected by Si Application
• Yield and Soil Erosion among Cassava-Based Cropping Patterns in South Sumatra
• Field Study on Translocation of Nitrogen and Its Contribution to the Growth of Wetland Rice at the Middle Growing Stage
• Starch Eluted from Polished Rice during Soaking in Hot Water is Related to the Eating Quality of Cooked Rice
• Characteristics of Root Growth and Water Uptake from Soil in Upland Rice and Maize under Water Stress
• Detection and verification of QTLs associated with heat-induced quality decline of rice (Oryza sativa L.) using recombinant inbred lines and near-isogenic lines

もっと見る 閉じる

スポンサーリンク