87 research outputs found
El documental de propaganda
No full textEDITOR´S ABSTRACTIn this text, Enrique Lacolla, contrasts two forms of propaganda documentary focusing not only in its content but in the different uses of cinematographic language that each of them implies. The author proposes that, through analysis of this kind, it is possible to appreciate not only what images displayed but also the cultural and ideological guidelines that inform them and connect them with their time.We thank the author for his permission to publish this article.RESUMEN DE LOS EDITORESEn este texto, Enrique Lacolla, contrapone dos formas del documental de propaganda centrándose no sólo en su contenido sino en los distintos usos del lenguaje cinematográfico que cada una de ellas implica. El autor propone que, a través de análisis de este tipo, es posible apreciar no sólo lo que las imágenes exponen sino también los lineamientos culturales e ideológicos que las informan y las conectan con su época.Agradecemos al autor la autorización para publicar este artículo
Spatial distribution of roots and cracks in soils cultivated with sunflower
No full textThe aim of this research was to investigate the spatial distribution of roots and cracks in two clay soils cropped with sunflower under different inter-row spacing in order to identify the optimal management. A latin square experimental design was applied to compare bare soil and soil cropped with sunflower, with three plant densities, obtained by keeping constant the number of plants on the row (3 plants m−1) and varying the row spacing (0.4, 0.6, 0.8 m). The presence of the crop and the different distance between rows influenced soil moisture content as well as the root spatial distribution and thus the structural features of cracks. Increasingly lower values of moisture were found in both soils as the distance between rows decreased; an opposite trend was observed for both root density and crack size. The volume of cracks in the soil grown with sunflower at 0.4 m row spacing was 201.4 m3 ha−1, thus 8 times higher than the value on the bare soil and 2.5 times higher compared to the one grown at 0.8 m between rows. Optimal results in terms of root density, soil moisture and crack size were obtained with an inter-row spacing of 0.6 m
Correzione di terreni irrigati con acque salino-sodiche. Risposta della coltura di fagiolo borlotto.
No full text
Effect of organic and mineral fertilization on faba bean (Vicia faba L.)
No full textThe aim of this research was to evaluate the effect of various combinations of organic and/or mineral fertilizers on faba bean (Vicia faba L.) to identify the best treatment for balancing yield, seed quality and composition and soil fertility maintenance over time. Wet olive pomace, an olive-mill by-product very abundant in olive oil producing countries, was used for fertilization trials. The use of wet olive pomace at 140 Mg ha−1, combined with half of the conventional N, P, and K dose of mineral fertilization, allowed to achieve the same faba bean productivity of full mineral fertilization. Higher levels of wet olive pomace did not induce further productivity increase. The highest protein content in dry faba bean seeds (276.05 g kg−1) was detected at full mineral fertilization. Phenolic compounds and antioxidant activity showed an opposite trend and tended to be lower in case of full mineral fertilization alone, whereas were higher in unfertilized control and in the trials fertilized with combinations of half mineral fertilization and olive pomace. The latter fertilizing condition also allowed to suppress the infesting flora. The use of wet olive pomace for agricultural purposes could therefore represent an environmentally friendly support to mineral fertilization, adding value to a by-product
Effetti dello spargimento sul terreno di quantità diverse di sanse umide su alcuni parametri fisiologici del girasole
No full textEffects of the Soil Incorporation of Increasing Amounts of Non-Fermented Wet Pomace on the Oil Yield and Acid Profile of Sunflower Seeds
No full textThe agricultural use of olive processing waste is a strategic resource in the integrated management of the agricultural system as it satisfies the two objectives of evacuating the olive-processing residue and using it beneficially for agricultural purposes. For such aims, a research was conducted in Bari (South of Italy) to study the effects of the incorporation into the soil of increasing amounts of non-fermented wet pomace (WP) (0, 17.5, 35, 70, 105, 140, 175, 210 Mg ha-1) on the oil yield and acid profile of sunflower seeds. The results obtained point out that the seed yield was negatively affected by the application of WP starting from 70 Mg ha-1; an opposite trend was observed for the seed oil yield. The incorporation of WP has also affected the oil fatty acids’ composition. Oleic and linoleic acids, the principal fatty acids (beyond 90% of total fatty acids), showed significant variations: from the control treatment to the one receiving the maximum application of waste, oleic acid decreased (-5.4%), linoleic acid increased (+ 6.6%), and the saturated fatty acids fraction decreased (-7.6%)
- …
