燐酸肥効に及ぼす土壌改良剤の腐植類似効果に就いて(第2報) : 土壌改良剤の添加による小麦の生育, 収量並びに成分組成に対する影響

概要

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A series of pot experiment with wheat were conducted to elucidate the possible promotion of phosphate availability by soil conditioners. Krilium 9,6,Aerotil and Na-humate were applied in three different placements as illustrated, in Fig. 1. In block placements similar to band placememt in practical fields, the concentration of soil conditioners undoubtedly increased around fertilizers as compared with the apparent percentages. In general, the growth and yield of wheat were evidently improved when the concentrations of soil conditioners were expected to be high enough to actually present phosphate fixation, as reported in the previous paper (Part 1) (cf. Table 1-4). The ultimate reason was attributed to the surprisingly increased uptake of phosphoric acid by wheat plant as shown in Table 5 & 6,although the uptake of N and K more or less increased. The result may suggest a new promising application of soil conditioners, not directly aiming at the improvement of physical condition of soil but directly connected with the improvement of chemical properties i. e. prevention of phosphate fixation.
一般社団法人日本土壌肥料学会の論文
1956-03-05