Abstract
The objective of this study is to evaluate the yield of grains and oil from the crops of the Crambe abyssinica Hochst under nutritional arrangements based on NPK. This experiment was carried out in the city of Cascavel-PR, on a typical dystrophic hapludox, clayey to very clayey texture, with a smooth undulated relief, with average altitude of about 680 m. The treatment consisted of nutritional arrangements based on NPK, which are: NPK; T2:N; T3:P; T4:K; T5:NP; T6:NK; T7:PK; T8: witness (without applying fertilizer). The experimental delimitation used for the experience was not fixed but occasional in which 8 treatments and 3 repetitions were applied. The measurement of the grain production was accomplished over a 1.0 m² area located on the central part of the experimental unities. The oil production itself was accomplished utilizing the Soxhlet method. The statistical data provided was based on the analysis of the variance; the treatment means were compared by Tukey test, on 5% of significance. No nutrients alone or in combination promoted a significant difference for grain yield. For oil yield, the arrangement consisting of NPK promoted significant difference from other treatments except for treatments NK and P. Key words: Oilseeds, nutrients, energy potential.
Highlights
The environmental impacts caused by the conventional energy sources have been forcing men to pursue other renewable energy alternatives, which are economically viable and with reduced pollution rates
The objective of this study is to evaluate the yield of grains and oil from the crops of the Crambe abyssinica Hochst under nutritional arrangements based on NPK
No nutrients alone or in combination promoted a significant difference for grain yield
Summary
The environmental impacts caused by the conventional energy sources have been forcing men to pursue other renewable energy alternatives, which are economically viable and with reduced pollution rates. Crambe requires good levels of moisture in the soil only during germination and cultivation establishment, and it requires a maximum of 150 to 200 mm of water until its full blossoming. After this period the ideal condition for its best development is the absence of rain, once that excessive rain, associated to high humidity, favors the occurrence of diseases (Pitol, 2008). This work aimed to evaluate the production of grain and crop Crambe oil under arrangements of soil fertilizers based on some extreme important macronutrients to the cultivation development and, verifying if there was an increase of the production with the application of some isolated nutrient
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