14 research outputs found
Effect of Fertilizing Fodder Chicory on Fodder Quality
The nutritive value of fodder chicory is close to the quality of fodder alfalfa, i.e. under certain technological conditions, fodder chicory has a higher nutritive value and more raw protein. Studies show that over three experimental years, the content of raw protein reached values ranging between 23.69 and 25.26% with mineral fertilization and between 21.88 and 22.81% with organic fertilization, compared to only 21.06% in the control variant. Depending on the content of raw protein, the amount of raw protein increased with 40.7% with mineral fertilization and with 22.4% with organic fertilization, compared to the control variant
Impact of Fertilisation on the Growth and Development of the Root System and of the Aerial Vegetative System in Bird’s-foot-trefoil (Lotus corniculatus L.)
In all conventional agricultural systems based on the application of mineral or organic fertilisers, their impact is assessed depending on the final product (production of green matter or of seeds) and on its quality. At plant level, the impact of fertilisers differentiates depending on the structure and morphological features of the plants. This paper presents the differentiated impact of applying organic and mineral fertilisers on the growth and development of the root system and of the aerial vegetative system in bird’s-foot-trefoil
Effect of Fertilising Fodder Chicory on Fodder Quality
The nutritive value of fodder chicory is close to the quality of fodder alfalfa, i.e. under certain technological conditions, fodder chicory has a higher nutritive value and more raw protein. Studies show that over three experimental years, the content of raw protein reached values ranging between 23.69 and 25.26% with mineral fertilisation and between 21.88 and 22.81% with organic fertilisation, compared to only 21.06% in the control variant. Depending on the content of raw protein, the amount of raw protein increased with 40.7% with mineral fertilisation and with 22.4% with organic fertilisation, compared to the control variant
Impact of Applying Organic and Mineral Fertilisers on Dry Matter in Bird’s-foot-trefoil (Lotus corniculatus L.)
Applying nitrogen fertilisers in legume species has been subjected to scientific research due to the efficacy of these fertilisers on yield (symbiotic atmospheric nitrogen fixation). In general, applying high rates of nitrogen fertilisers on legume species does not correlate directly with green matter production because these species take the necessary nitrogen from the atmosphere. This feature is specific also to bird’s-foot-trefoil, which fixes important amounts of atmospheric nitrogen during vegetation. This paper presents the impact of the interaction between organic and mineral fertilisers on bird’s-foot-trefoil within a bifactorial experiment. Differences in yield at both unilateral effect of the factors and at that of the interaction of the factors are statistically ensured
Establishing Optimum Time for Foliar Fertilisation in Alfalfa
Foliar fertilisation is part of the conventional fertilisation integrated system in crops. Foliar fertilisers, due to the large number of macro-elements and microelements that make up their chemical composition, play an important role in plant nutrition ensuring high quality yields. This paper presents the differentiated effect of applying foliar fertilisers on alfalfa depending on application time after mowing
Effect of Bacterial Inoculation and of Nitrogen Fertilisation on Fodder Quality in Some Grass and Fodder Legume Species
Increasing the biological nitrogen fixing capacity through inoculation with improved stems of nitrogen fixing bacteria is an important measure of increasing total nitrogen content in legumes due to the supply of fixed nitrogen. Research on perennial legume species sowed in pure culture or in mixture with perennial grass species showed that in the variants inoculated the content of total nitrogen was close to the content of total nitrogen in the variants fertilised with N100. Mean data for the three vegetation years show that bacterial inoculation of the legumes contributes with 11.5% to the increase of the content of total nitrogen in the plants, while fertilisation with N100 has an almost similar contribution (11.0%)
Effect of Bacterial Inoculation and of Nitrogen Fertilization on Fodder Quality in Some Grass and Fodder Legume Species
Increasing the biological nitrogen fixing capacity through inoculation with improved stems of nitrogen fixing bacteria is an important measure of increasing total nitrogen content in legumes due to the supply of fixed nitrogen. Research on perennial legume species sowed in pure culture or in mixture with perennial grass species showed that in the variants inoculated the content of total nitrogen was close to the content of total nitrogen in the variants fertilized with N100. Mean data for the three vegetation years show that bacterial inoculation of the legumes contributes with 11.5% to the increase of the content of total nitrogen in the plants, while fertilization with N100 has an almost similar contribution (11.0%)
Effect of Bacterial Inoculation in some Mixtures of Grassland Legumes and Gramineae
The paper presents the influence of bacterial inoculation of perennial legumes (alfalfa, bird’s-foot trefoil) in pure culture and cultivated in association with perennial gramineae on fodder yield, fodder quality, and atmospheric nitrogen-fixing ability. Results point out an increase of 10-12% of the yield of dry matter in the variants inoculated. Bacterial inoculation with specific bacterial stems (Sinorhizobium meliloti and Mezorhizobium loti) has a positive influence on fodder quality too, materialised in the raw protein content and the amount of nitrogen fixed biologically
Effect of Fertilising Chicory (Cichorium intybus L.) in the Second Vegetation Year
In the conditions of the Banat’s Plain (Romania), chicory can be an important fodder crop well adapted to the climate conditions in the area. Research results show that this species is positively influenced by the use of chemical or organic fertilisers. Applying nitrogen fertilisers on a yearly basis at rates of N50-100 lead, in the second vegetation year, to productions higher with 22-34% than in the control variant (no fertilisation). The remnant effect of animal manure was obvious in the second year of application too, when we obtained, at a rate of 40 t/ha, an increase of 26% compared to the control variant
The Impact of Nitrogen Fertilisation on the Evolution of Floristic Composition in Mixtures of Festuca rubra L.
Festuca rubra L. is a good competitive species that makes up the floristic structure of temporary meadows and that are used for grazing or mixed use (haymaking field – grassland) together with Festuca pratensis L., Phleum pratense L., Poa pratense L., Trifolium repens L. and Lotus corniculatus L. The paper aims at pointing out the evolution of the floristic composition of the vegetal cover in different mixtures based on (creeping) red fescue (Festuca rubra L.), Dutch / white clover (Trifolium repens L.) and bird’s-foot trefoil (Lotus corniculatus L.). Analysis of mean results concerning the structure of the floristic composition of mixtures based on Festuca rubra L. (60%) shows that in all 9 types of mixtures there was balance between the degree of participation of (creeping) red fescue and the share of the other two legume species studied. In the control variants, in the two simple mixtures, the share of Dutch / white clover was 48% and that of bird’s-foot trefoil was 44%. These values decreased, on the average, with 10% when applying a rate of N50 and with 14% when applying a rate of N100. In the complex mixture, there was a mean value of the degree of participation of the two species of legumes of 46% (with a higher share of the bird’s-foot trefoil) in the control variant, of 34% in the variant treated with N50 and of 30% in the variant treated with N100