Estimation of the influence of nitrogen fertilization (ammonium nitrate or urea) on the mechanical properties of rape siliques*
|
|
||||||||
PDF 211.96 KB
|
|||||||||
| Authors: | B. Szot1, J. Tys1, T. Rudko1 1Institute of Ągrophysics, Polish Academy of Sciences, Doświadczalna 4,20-236 Lublin, Poland |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Abstract : | Abstract. Two field experiments were con-ducted in order to evaluate the effect of nitrogen ferlilization on the strength properties of rape siliques: - on one variety (Jupiter), with nitrogen used as urea to soil in spring, - on four varieties (Ceres, Liporta, Bolko, Mar), with nitrogen as 10 % urea water solution to leaves. A 7 to 42 % increase in silique strength was observed for urea as compared to ammonium nitrate. 10 % water solution of urea caused a 10 to 51 % increase in silique strength, depending on variety. |
||||||||
| Keywords : | rape siliąues, nitrogen fertilization, mechanical properties | ||||||||
| Language : | English | ||||||||