The aim of the research was to establish the sowing period and its influence on the harvest and the optimization of mineral fertilization, under the influence of microclimatic conditions of three villages from Timis county, Romania. The biological material used was the Astronomer rapeseed hybrid, approved for cultivation in our country and which in recent years occupies an important segment of the market due to the increased demand on industrial vegetal oil. The research was being conducted in three different locations: Jebel, Stamora Română and Duboz. The experiences were bifactorial ones, according to the method of subdivided plots, in three repetitions and the results are presented as means. The results show that the level of seed production was influenced to a very large extent by the very low percentage of sprouting time, due to the lack of precipitation and the unevenness of their distribution at the level of the experimental zone. In terms of the period of the beginning of the crop, in all three locations, the highest harvests were obtained in E1 and E2, intervals in which both the percentage at sprouting time and the behavior until the entry into winter were close to optimal. Due to the problems encountered in the establishment of crops, the results regarding the capacity of the hybrid and the influence of the type of fertilizer cannot be considered conclusive and as a result it is necessary to continue the experiments in the following years. The highest harvests were registered at Jebel (3772 ka/ha, established culture in E1) and Duboz (3848 kg/ha, established in E2). Regarding the type of fertilizer used and the influence on production, one may notice that the highest harvest of 4288 kg/ha was recorded by fertilization with Duo MPPA10:24:0 + 0.1Zn + 0.1Br +20 SO3, harvest obtained in the Jebel experimental field.

rapeseed, technology, pedoclimatic conditions

field crops and pastures

Presentation: poster