STUDY REGARDING THE INTRODUCTION OF LALLEMANTIA IBERICA F. ET M. INTO CULTIVATION ON THE TIMIS COUNTY PLANES PUBLISHEDBeniamin Daniel URSU, I. BORCEAN
Lalemantia iberica is a valuable specie whose seeds contain 26 - 40% oil with high iodine index 162,2 – 202,9 and very dry, in this regard surpassing the linseed oil. The specie has been introduced in Europe from Iran. From the statistical data (V.S. Venţlavovice, cited by C. Copcaru, 1965) has been cultivated in Ukraine since 1884. Lalemanţia is part of the Labiatae Family, 4 species being know, 2 of them being cultivated: L. Iberica F. et M., şi L. Peltata F. et M. Lallemantia iberica is not very sensitive to heat. The vegetation period is of 70 – 80 days, and the temperature source up to maturity is of 1700˚C. The minimum germination temperature is of 3-5˚C, and the young plants can bear temperature up to minus 7-8˚C, if such low temperatures do not last long time (C. Copcaru, 1965). The humidity requirements are moderate. Excess of humidity make the plans more sensitive to diseases. Regarding the soil, the plant has few requirements; the best results are obtained on chernozem-type soils (N. Zamfirescu şi colab., 1965). We are presenting in our work the results obtained on cambic chernozem soil in the Banat Plane. The research results are proving that it is not a plant having high needs regarding the previous culture. In culture rotation after autumn wheat and corn, there were no differences regarding the signification level. Fertilization with variable doses of nitrogen fertilizers (N 20 , N 60 , N 90 ) applied on a constant background of P 60 K 60 has positively influence the crop, differences in comparison with the witness lot being significant. Also we present the influence of fertilization on the plants height. The plants have grown proportionally with the nitrogen fertilizer dose, after both previous plants. The weight of 1000 seeds has raise following the fertilization with N 90 , applied on a constant phosphor content of 21%, for wheat – Lallemantia culture rotation and with 6% for corn– Lallemantia. The oil content, in the researched field has been situated between 36,9% and 41,5%. The nitrogen fertilizers have diminished the oil content. The oil quantity, depending on the previous culture and the nitrogen fertilizer dose applied in the context of P 40 K 40 , has been between 226 kg/ha and 688 kg/ha.
rotation, fertilization, crop, quality