關於石灰氮施肥方法之研究(第三報)紅壤、鹽土、看天田土及粘板岩沖積土水稻栽培試驗結果
Other Title
Studies on the Application of Calcium Cyanamide In Taiwan (3) Experimental Results of Rice on Latosol, Saline Soil, the Kan Tien Tien Soil (Planoso Like Soil) and Slate Alluvial Soil.
Journal
農業研究
Journal Volume
11
Journal Issue
1
Start Page
38
End Page
44
Date Issued
1962-03-05
Date
1962-03-05
Author(s)
徐水泉
廖忠信
S.C. Hsu
C.S. Liao
Abstract
為檢討石灰氮在本省各種土壤之合理施肥法，作者繼前報砂岩頁岩質沖積土水稻栽培試驗後，續對紅壤、鹽土、看天田土及粘板岩質沖積土進行水稻盆栽試驗，結果如下：
1. 看天田土及紅壤之石灰氮施用適期為插秧前四天以前。
2. 石灰氮對於粘板岩質沖積土及鹽土之水稻生育均有不良影響。在粘板岩質沖積土，插秧前八日以內所施石灰氮均使栽植之水稻枯萎。鹽土則在本試驗處理範圍內，即插秧前十四日以內所施石灰氮均使水稻枯死。石灰氮在上述兩種土壤對水稻為害之原因，因該肥料在土中分解之過程並未經調查，不能確定，惟據作者推測，此兩種土壤之 pH 值過高恐為原因之一。
The proper time of application of Calcium Cyanamide for paddy on various types of soil were studied by pot experiment in glass house. The results on sandstone and shale alluvial soil were. previously reported. The results of experiment on latosol, saline soil. the Kan Tien Tien soil and slate alluvial soil were shown as follows.
1. From the yield and growth of rice culture, it was observed that the proper time of application of Calcium Cyanamide on both latosol and the Kan Tien Tien soil was about four days before planting f rice seedlings.
2. Calcium Cyanamide was found inadequats for the growth of rice on slate alluvial soil and Saline soil which, have high pH value. In slate alluvial soil, rice plant was injured to death by the calcium cyanamide applied on 8 days before its planting, and in case of saline soil, the calcium cyanamide applied 14 days before planting still gave toxic effect.
High pH value of soil might be a main cause of injury of this fertilizer to the rice cultivated on.these soil.
Publisher
農業試驗所
Type
journal article
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