窒素施用에 따른 율무의 主要特性變異 = Effect of Nitrogen Application on Major Agronomic Characteristics in Adlay Plant (Coix agrestis(non Lour.) MIQ)

국문 초록 (Abstract)

主稈重과 總乾物重은 12kg施用區에서 높게 나타났고, 이보다 많거나 적은 處理區에서는 낮게 나타났다.
葉中 葉綠素含量은 窒素를 增施할수록 含量이 增加되었다.
100粒重, 1ℓ重, 收量에 있어서는 12kg處理區에서 높게 나타났고, 이보다 많거나 적은 區에서는 낮게 나타났는데, 收量에 대한 曲線의 方程式은 y=99.778+80.573x-11.807x²이었다.
粗蛋白質은 12kg處理에서, 粗脂肪은 18kg處理에서 높게 나타났으나, 粗澱粉은 施用量이 많아질수록 오히려 減少하는 傾向이었는데, 이에 따른 曲線의 方程式은 y=57.782-3.853x+0.393x²이었다.
草長은 葉長, 葉幅, 節間長, 葉綠素含量과는 正의 相關을 보였으나 粗澱粉과는 負의 相關을 나타내었고, 葉綠素含量은 粗澱粉과 負의 相關을, 收量은 粗澱粉과 正의 相關을 나타내었다.
本 試驗結果로 미루어 볼 때 율무에 대한 窒素의 適正施肥는 10a當 18kg內外로 思料된다.
窒素施用을 10a當 0, 6, 12, 18, 24kg으로 달리하였을때 율무의 主要特性變異를 究明하기 위하여 遂行한 結果를 要約하면 다음과 같다.
窒素增施에 따라 草長, 葉長, 葉幅, 節間長은 增加하는 傾向이었다.

다국어 초록 (Multilingual Abstract)

This study was csrried out to investigate the effect of nitrogen application on major agronomic characteristics in adlay plant(Coix agrestis(non LOUR.) MIQ). Nitrogen was applied to the soil at the rate of 0, 6, 12, 18, and 24kg per 10a.
The results obtained can be summarized as followers;
As the amount of nitrogen fertilization was increased, plant height, leaf length, leaf width, and internode length increased.
On the plot applicated with nitrogen level(12kg/10a), the dry matter weight of main culm and per plant was observed to have increased. On the other hand, it reduced on the application plot with nitrogen level (12kg/10a, or little more).
Chlorophyll content of its leaf tended to increase with the rise in the level of nitrogen application.
In point of the respose of grain yield, weight of 1 liter, and 100 grains to amount of nitrogen application, they were observed to be the highest on the leavl of nitrogen application(12kg/10a). Significant regression equation of yield was y=99.778+80.573x-11.807x².
The crude protein was the most increased on the plot with the amount of nitrogen application(12kg/10a). But the crude fat tended to decrease with the rise in the level of nitrogen application. Significant regression equation of the crude fat was y=57.782-3.853x+0.393x².
The plant height was positively correlated with leaf length. leaf width, internode length, chlorophyll contents of leaves, but it was negative correlations with crude starch. The yield was significantly correlated with crude starch. The chlorophyll content of leaves had negative correlations with crude starch, but yield was positively correlated with crude starch.
This experiment showed that the adequate fertilizing of nitrogen was about 18kg per 10a.