桑園酸性土壌に関する研究(第二報) : 酸性土壌が桑葉の組成に及ぼす影響

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Two different sets of pot experiment were carried out to know what a difference in the composition of mulberry bares could be found between them. The former was the case in which some CaCo_3 was put in the acid Soil, and the latter was the Case in which the acid soil was used as it was. The results are summarized as follows : 1) The water content, nitrogen, protein and ash in leaves are found much greater in the neutral-soil plot than in the acid-soil plot, but the soluble carbohydrate and ether soluble substances are quite the reverse. 2) The mulberry leaves grew in the acid-soil plot are poorer in P_2O_5,K_2O, CaO and MgO, but richer in SiO_2. 3) Alkalinity of ash in mulberry tree is as follows : (in dry matter) [table]
一般社団法人日本土壌肥料学会の論文
1940-03-25