This paper review analyze most important impact of nitrogen rates, time for nitrogen application, general concentration of nitrogen, potassium and phosphorus in top ground plant dry matter, average daily temperature, stand population density of plants\' population, precipitation rate, number of growing days and duration of vegetative growth through a variety of experiments have all shown to have a significant impact on the seed yield on oilseed rape plant (Brassica napus L). Nitrogen rates amounting to 120 kg/ha significantly impacted on the seed yield. Further, nitrogen fertilization itself has effects on the seed yield, but they are comparatively low. It is, in essence, possible to delay nitrogen application up to beginning of the flowering process. However, this is not the case in poorest soils and unfavorable growth and development conditions, if nitrogen application is delayed in above case, it may also be risky or worsen. The concentration of nitrogen in the plant\'s dry matter at the following stages had an impact on the seed yield of oilseed rape; 4-5 leaf stage, beginning and end of flowering stages and seed development stage. In addition, phosphorus concentration has no importance in the second portion of vegetative growth. On contrary, potassium concentration had no importance, but only in the first portion. With the steady increase of population stand density, (up to 170 plants-1); there was a positive response to the content tremendously increasing. Precipitation rate and long durations of the vegetative growth period, both led to recording of higher seed yields. Seemingly, the increase in the average daily temperatures has negative effects on the seed yield of oilseed rape plant. The equations presented could be used in the development of a model for seed yield of oilseed rape assuming agronomic as well as climatic factors. Lodging in oilseed rape plants is rampant in some occasional portions of plantations, which significantly affect the seed yield content. There are two types of lodging in rapeseed, namely stem lodging, which involves downward bending of stem and roots lodging, which leads to poor anchorage and thus the falling of the entire plant.