Studies on the Deeper Layer Application of Additional Nitrogen Fertilizer for Rice Plant (III) : Differences in effects of deep placement of topdressing between ball and ammonium sulfate fertilizer.
Lab. of Crop Science, Dept. of Agriculture, Kinki Univ.
Lab. of Crop Science, Dept. of Agriculture, Kinki Univ.
Lab. of Crop Science, Dept. of Agriculture, Kinki Univ.
出版者 名前
近畿大学附属農場
出版社 カナ
キンキ ダイガク フゾク ノウジョウ
出版社 ローマ字
Kinki daigaku huzoku nojyo
出版年(from)
1982
出版年(to)
10-21
日付 作成日
2009-12-10
雑誌名
近畿大学農場報告
雑誌名(英)
Bulletin of the Experimental Farm of Kinki University
号
4
ページ
1 - 7
発行年
1982-10-01
抄録
This report consists of two experiments. Experiment 1 was carried out by 1/2000 a Wagner pots to compare the N uptake of ball fertilizer nitrogen with the N uptake of ammonium sulfate nitrogen. Both fertilizers was applied as top dressing into the deeper layer of soil. Experiment 2 was carried out in paddy field to compare the effects of ball fertilizer on growth and yield of rice plant with the effects of ammonium sulfate. Both fertilizers was also applied as topdressin. The results obtained from two experiments are summarized as follows. 1. Where small amount of basal dressing was followed by large amount of top dressing, the N constant of plant was more large over the ripening period (Exp. 1). 2. The ball fertilizer N was slow in the uptake than ammonium sulfate N, but the uptake of ball fertilizer was maintained up to ripening period (Exp. 1). 3. The growth, yield and yield components did not differ in their response to both fertilizers in spite of placement of topdressing (Exp. 2). 4. It shows that growth of plant applied by deep placement of topdressing has promoted after heading time in spite of various kinds of fertilizer (Exp. 2).
水稲に対する窒素の深層追肥効果に関する研究 (第3報) - 固形肥料と硫安との深層追肥効果の差異 -
AN00064077-19821021-0001.pdf
(1.49MB)
