Japanese Journal of Soil Science and Plant Nutrition
Online ISSN : 2424-0583
Print ISSN : 0029-0610
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Volume 60, Issue 1
Displaying 1-32 of 32 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1989 Volume 60 Issue 1 Pages Cover1-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_Cover1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    1989 Volume 60 Issue 1 Pages Cover2-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_Cover2
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App1-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App1
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App2-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App2
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App3-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App3
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App4-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App4
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  • Models for Predicting Nitrogen Mineralization of Paddy Soils
    Ho ANDO, Hiroshi FUJII, Toshio SATO, Kenichi ARAGAKI, Masanori NAKANIS ...
    Article type: Article
    1989 Volume 60 Issue 1 Pages 1-7
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_1
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    Study on N mineralization in 4 paddy soils comprising three paddy soils which originated from alluvial soils and one from volcanic ash soil were undertaken using anaerobic incubation in vinyl bags buried 5 cm below the ground surface. The results obtained are summarized as follows: 1) Two equations representing a single exponential model: N_<Nt>=A{1-exp(-k_a×t_a)}+C and a double exponential model consisting of two components: N_<t_a>, t_b=A{1-exp(-k_a×t_a)}+B{1-exp(-k_b×t_b)}+C were used to compare the mineralization potential, where N_<t_a> and N_<t_a>, t_b are the amounts of ammonium N in soil in the time (t_a, t_b), A is potentially all mineralizable N, B is the potential denitrification or immobilization of labile mineralized N, and k_a and k_b are the mineralization rates. Variance (V) of the double exponential model was smaller than the V of the single exponential model in all soils. 2) The B and k_a of the paddy soils which originated from volcanic ash soil were smaller than those of the alluvial soils. 3) The organic material was hardly altered by dry treatment in one of the alluvial soils in which the E_<a_a> and E_<a_b> were extremely low.
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  • The Nitrogen Mineralization Patterns of Paddy Soils in Shonai District
    Hiroshi FUJII, Ho ANDO, Toshio SATO, Kenichi ARAGAKI, Masanori NAKANIS ...
    Article type: Article
    1989 Volume 60 Issue 1 Pages 8-14
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_8
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    Soil N mineralization of paddy soils in Shonai district under field condition were investigated mainly by the kinetic method, and the parameters obtained were discussed. The results obtained are summarized as follows: 1) A double exponential model consisting of two components [N_<t_a>, t_b=A{1-exp(-k_a×t_a)}+B{1-exp(-k_b×t_b)}+C] was as follows: the first component is all the mineralizable organic N, where A is the potentially mineralizable N, k_a is the mineralization rate, and t_a is the time required for N mineralization, respectively, and the second component is denitrification or immobilization of labile mineralized organic N. 2) From middle growth stage to maturity stage, the amount of soil N absorbed by rice plant correlated to the amount of mineralized N derived from all the mineralizable organic N (r=0.799***). 3) More than 50% of all the mineralizable organic N was mineralized by the latter part of June. 4) Coefficient of variation of the amount of mineralized N within a given period of time correlated to the apparent activation energy (r=0.764***). Furthermore, the amounts of mineralized N correlated to the potentially mineralizable N (A) (r=0.631***).
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  • Soil-improving Effect of a Super-water-absorbent Polymer (Part 1) Total Volume, Three-phase Distribution, and Available Water of Super-water-absorbent Polymer Mixed Soils
    Seigo OUCHI, Akira NISHIKAWA, Fumio FUJITA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 15-21
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_15
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    A study has been undertaken on the applicability of a super-water-absorbent polymer for agricultural purposes in terms of a water-retentive soil conditioner. A synthetic vinyl alcohol-sodium acrylate co-polymer (Igetagel, manufactured by Sumitomo Chemical Co., Ltd.) was admixed with soils; changes in total volume, three-phase distribution, and water availability were measured. Soil samples used were taken from the A horizons of a granite-derived upland soil (sandy in texture), a paddy soil (light clay), and an Andosol. The results obtained are summarized as follows. Addition of water to the polymer mixed soils caused remarkable increase in the total volume. The rate of volume increase varied from 17 to 160% depending on the polymer: soil mixing ration and the type (texture) of soils. But no marked reduction of the total volume was observed upon drying. This indicates that the space occupied by the swollen polymer remained open after drying, allowing air to enter. This implies another advantageous role of the polymer in maintaining polymer-mixed soils in a soft and puffy condition. Both saturated and field water capacities increased by admixing of the polymer, particularly in the sandy granite-derived soil. As for the hygroscopic coefficient, no significant difference was observed between polymer-mixed and unmixed soils. This indicates that the water held by the polymer in soils is almost totally available for plants, and that the initial and permanent wilting points of polymer-mixed soil can be represented by those of the original (unmixed) soils. This availability of the water held by the polymer was also confirmed by a cultivation test using sunflower(Helianthus annus L.).
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  • Evaluation of Ammonium Nitrate Extraction Method for Predicting Plant-Available Cadmium
    Toru KUBOI, Akira NOGUCHI, Jinya YAZAKI
    Article type: Article
    1989 Volume 60 Issue 1 Pages 22-28
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_22
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    Japanese radish (Raphanus sativus L.) was cultured for 21 days on sandy and silty-loam soils at various levels of soil pH and Cd addition rates. Relationships among yield of the plant tops, chlorosis symptoms, tissue Cd concentration (Cd _<TIS>), Cd addition rate (Cd_<ADD>), and Cd concentrations extracted by DTPA (Cd_<DTPA), ammonium nitrate (Cd_<AN>), and distilled water (Cd_<H_2O>) were analyzed. In the first experiment, values of soil pH were fixed to 2 levels, i.e. original values (5.6-5.9) and 7.5, whereas various Cd-addition rates were set from 0 to 1500 mg/kg. Correlation coefficient between Cd_<TIS> and Cd_<AN> (0.95) was remarkably higher than the values between Cd_<TIS> and Cd_<ADD> or Cd_<DTPA> when the data of all treatments were pooled. Even for the Cd_<TIS>- Cd_<AN> relationship, however, the regression coefficients calculated from the data of each treatment were statistically different from each other. The difference between the 2 soils in 'upper critical level' of Cd for the yield curve was smaller when the Cd level was based on Cd_<AN> and Cd_<TIS> as compared to the Cd_<ADD> and Cd_<DTPA&Gt; bases. A similar trend was observed to fix the levels of Cd_<ADD> (100 for the sandy soil and 600 for the silty-loam soil on mg/kg basis) and to vary the values of soil pH (5.6-8). Good correlation between Cd_<TIS> and Cd_<H_2O> was observed only in the silty-loam soil while the Cd_<TIS> vs. Cd_<AN> relation was excellent for both soils. The critical levels of Cd_<AN> and Cd_<TIS> for yield reduction were similar to those in the first experiment.
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  • Comparative Study on the Characteristics of Calcium Uptake by Corn and Cucumber with Excised Root System and Detopped Root System
    Yasunori TACHIBANA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 29-33
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_29
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    The characteristics of calcium uptake were investigated in excised root and detopped root system of corn (Zea mays L.) and cucumber (Cucumis sativa L.) cultivated in nutrient solution with various calcium concentrations. Cucumber absorbed calcium more rapidly than corn did. The amount of calcium absorbed by cucumber for 6 hours was 4-8 times as much as corn. The calcium concentration in bleeding sap increased with the calcium concentration in medium, and was always higher in cucumber than in corn. Considering the calcium concentration factor, it is concluded that cucumber has higher active absorption of calcium than corn does.
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  • Soil Enzyme Activities in Andosol Paddy Fields (1) Relationship between Soil Enzyme (β-Acetylglucosaminidase, Protease, and Adenosine Deaminase) Activities and Microbial Counts
    Fumimasa SATO, Hiroaki OMURA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 34-40
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_34
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    To abtain information about the relationship between soil enzyne activities and soil microbial counts in Andsol paddy fields, we measured the activities of β-acetylglucosaminidase (EC. 3. 2. 1. 30), protease (EC. 3. 4. 21. 14), and adenosine deaminase (EC. 3. 5. 4. 4.), and counts of fungi, actinomycetes, and bacteria in the soils curing the growth of rice plant. The results obtained were as follows : (1) Three kinds of enzyme activities were higher in soils with application of organic matter which consisted of manure added with rice straw every year than in soils with non-application. (2) An application of a different amount of nitrogenous fertilizers influenced soil microorganisms. Application of 0.8kg N/a to soil effected a greater increase in soil microorganisms. (3) The counts of actinomydetes were correlated with adenosine deaminase activities and with β-acetylglucosaminidase activities at a 5% level.
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  • The Effect of Salt Stress on Growth, IAA Productivity, and Extracellular Polysaccharides Productivity of Rhizobium meliloti and Other Rhizobium sp.
    Jyunichi IKEDA, Michiharu KOBAYASHI, Eiichi TAKAHASHI
    Article type: Article
    1989 Volume 60 Issue 1 Pages 41-46
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_41
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    We studied the effect of salt stress on growth, IAA productivity, and extracellular polysacccharides (ECPS) productivity of rhizobia. the rhizobia which we used were Rhizobium meliloti and other Rhizobium sp. (isolated from jackbean). They were preincubated for 3 months in two types of broth, one containing 0 and the other 8000 ppm NaCl. The former treatment was called "treatment 1", and the latter "treatment 2". These 4 type strains (R. meliloti (treatment 1), R. meliloti (treatment 2), R. sp. (treatment 1), R. sp. (treatment 2)) were tested under NaCl stress (from 0 to 8000 ppm). 1) In the broth containing 8000 ppm NaCl, the growth of R. meliloti (treatment 1 and 2) and R. sp. (treatment 2) was not suppressed significantly, while the growth of R. sp. (treatment 2) was reduced to 63% of control. 2) R. meliloti (treatment 1) accumulated IAA, while the R. meliloti (treatment 2) did not. Salt stress delayed IAA accumulation. R. meliloti (treatment 1) accumulated the highest IAA in the broth containing 4000 ppm NaCl. R. sp. did not accumulate IAA. 3) R. sp. (treatment 2) accumulated ECPS as well as that of treatment 1. The R. meliloti of treatment 2 accumulated ECPS about 10% of the R. meliloti of treatment 1. The 8000 ppm NaCl stress suppressed ECPS productivity to 60%-70% of the each control in all 4 type strains.
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  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1989 Volume 60 Issue 1 Pages 46-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_46
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  • Studies on the Associative Nitrogen-flxing Bacteria in Flooded Rice Roots
    Kazuhiro HOSHI, Tomio YOSHIDA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 47-52
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_47
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    An investigation on the associative nitrogen-fixing bacteria in the roots of rice grown in a Japanese paddy soil under flooded conditions was carried out ; the results were as follows. 1) Higher number of nitrogen-fixing bacteria, both aerobic and anaerobic, were obtained by the use of CC medium than the use of GYE medium. 2) The number f nitrogen-fixing bacteria that were counted under aerobic condition in the washed rice root were obtained at the level of 10^6-10^7 order per gram of dry root, and percentage in the total aerobic bacteria was 30-50%. The number of aerobic nitrogen-fixing bacteria tended to increase at the heading stage of rice plant. 3) The number of nitrogen-fixing bacteria that were counted under anaerobic condition in the washed rice root were obtained at the level of 50-90%. The number of anaerobic nitrogen-fixing bacteria changed little during the growth of rice plant. 4) These nitrogen-fixing bacteria were identified as Enterobacter sp., Azosprillum sp., Pseudomonas sp., Xanthobacter sp., Alcaligenes sp., and Clostridium sp., Pseudomonas sp. was more dominant than another species at the heading stage.
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  • Light Microscopic Observation of Root Hair Curling of Soybean Induced by Rhizobium Infection
    Shoichiro AKAO, Hiroshi KOUCHI
    Article type: Article
    1989 Volume 60 Issue 1 Pages 53-55
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_53
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  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1989 Volume 60 Issue 1 Pages 55-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_55
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  • Amount of Crude Organic Matter in Fine Grey Paddy Soil in Hokuriku District and Its Effect on Nitrogen Mineralization
    Jikichi ITO, Koji IIMURA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 56-59
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_56
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  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1989 Volume 60 Issue 1 Pages 59-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_59
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  • Chemical Method for Estimating the Amount of Soil Nitrogen Mineralization during Early Stage of Rice Growth
    Masanori NAKANISHI, Hiroshi FUJII, Toshio SATO
    Article type: Article
    1989 Volume 60 Issue 1 Pages 60-62
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_60
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  • Some Simplified Methods in Microbiological Experiments
    Ritsuo SATO, Hidenori WADA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 63-64
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_63
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  • A Simple Method for Diluting Solutions with Plastic Containers
    Shinichiro WADA, Koya KAWABATA, D.J. WEERASOORIYA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 65-67
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_65
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  • [title in Japanese]
    [in Japanese]
    Article type: Article
    1989 Volume 60 Issue 1 Pages 67-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_67
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  • Activities and Utilization of Soils for Sewage Purification
    Tokujiro AIDA
    Article type: Article
    1989 Volume 60 Issue 1 Pages 68-71
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_68
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  • Preliminary Report of Post-Congress Excursion of 1990 ICSS in China
    Sadao SHOJI, Shizuo NAGATSUKA, Masanori OKAZAKI, Yukio SATO
    Article type: Article
    1989 Volume 60 Issue 1 Pages 72-73
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_72
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages 74-76
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_74
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  • [title in Japanese]
    Article type: Index
    1989 Volume 60 Issue 1 Pages 77-80
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_77
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App5-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App5
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App6-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App6
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  • [title in Japanese]
    Article type: Appendix
    1989 Volume 60 Issue 1 Pages App7-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_App7
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  • [title in Japanese]
    Article type: Cover
    1989 Volume 60 Issue 1 Pages Cover3-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_Cover3
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  • [title in Japanese]
    Article type: Cover
    1989 Volume 60 Issue 1 Pages Cover4-
    Published: February 05, 1989
    Released on J-STAGE: June 28, 2017
    DOIhttps://doi.org/10.20710/dojo.60.1_Cover4
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