THE INFLUENCE OF FERTILIZING SCHEMES AND THERMAL REGIME ON WHEAT YIELDS IN THE NORTH-WEST REGION OF ROMANIA

Published in AgroLife Scientific Journal, Volume 5, Number 2
Written by Andra PORUŢIU, Iulia MUREŞAN, Felix ARION, Tudor SĂLĂGEAN, Teodor RUSU, Raluca FĂRCAŞ

The current research is based on the production results obtained on wheat crops (Dumbrava Variety), cultivated following corn and following soy, in long term experiments conducted on an argyle chernozem as a representative soil for the north-western region of Romania, especially Cluj County. The production data are obtained from these experiments, which hold objectives that target both the effect of differentiated fertilizations on wheat yields and the quantity of the productions obtained.The goal of this research is to exhibit the differentiated fertilization systems involved in obtaining high productions for wheat (grown following soy, respectively following corn) in the reference area. In this study it was tracked the effect of the nitrogen-phosphorous interaction and the effect of the thermal regime during three experimental years (2011, 2012, 2013) in achieving the wheat productions.

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PORUŢIU A., MUREŞAN I., ARION F., SĂLĂGEAN T., RUSU T., FĂRCAŞ R. 2016, THE INFLUENCE OF FERTILIZING SCHEMES AND THERMAL REGIME ON WHEAT YIELDS IN THE NORTH-WEST REGION OF ROMANIA. AgroLife Scientific Journal, Volume 5, Number 2, ISSN 2285-5718, 131-136.

THE INFLUENCE OF MIXED GRASS/LEGUME PASTURES IN CROP ROTATION ON SOIL QUALITY - A STUDY CASE ON A CAMBISOL FROM SOUTHERN TRANSYLVANIA (ROMANIA)

Published in AgroLife Scientific Journal, Volume 5, Number 1
Written by Victoria MOCANU, Valentina VOICU, Sorina DUMITRU, Petru IGNAT, Vasile MOCANU

Agroclimax state has to be a national and global priority in sustainable agriculture. The main steps of resetting the state of agroclimax are: providing secondary biomass for the humification process, fixing nitrogen from atmosphere, and enssuring the speed of organic matter mineralization processes. Crop rotation is an important component of agricultural technologies for achieving constant yields over time. The paper presents the impact of a mixed grass/legume pastures on the main soil characteristics, highlighting a general upward trend. The experimental field was set up in Fagaras Depression, on a Fluvi-Eutric Cambisol, with a moderate acid reaction, a poor supply with N, and a medium supply with P and K. The experimental field was organized in 15 variants of different crop rotation, with 4 different periods of turning the soil. The studied chemical and physical parameters referred to soil reaction, organic matter, total nitrogen, available phosphorus and potassium contents, hydro-structural stability, dispersion index, and structural instability index. The soil state highlighted a slightly improvement after 6 years of experiments. The effects of introducing mixture of grasses with legumes in rotation is not quite remarkable, significant changes being highlighted only after a long period of time. But, this slight improvement of soil quality is important, and added to the improvement of yield quality could be a reason to recommend such a technology for farmers in similar areas.

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MOCANU V., VOICU V., DUMITRU S., IGNAT P., MOCANU V. 2016, THE INFLUENCE OF MIXED GRASS/LEGUME PASTURES IN CROP ROTATION ON SOIL QUALITY - A STUDY CASE ON A CAMBISOL FROM SOUTHERN TRANSYLVANIA (ROMANIA). AgroLife Scientific Journal, Volume 5, Number 1, ISSN 2285-5718, 138-143.

THE INFLUENCE OF ORGANIC AND MINERAL FERTILIZATION ON YIELD OF THE WHEAT GROWN ON REDDISH PRELUVOSOIL

Published in AgroLife Scientific Journal, Volume 5, Number 2
Written by Theodora BORUGĂ, Costică CIONTU, Iulian BORUGĂ, Dumitru-Ilie SĂNDOIU

The purpose of this paper is to present the results obtained on the reddish preluvosoil of the Moara Domnească experimental field belonging to the Department of Soil Sciences from Faculty of Agriculture, University of Agronomic Sciences and Veterinary Medicine of Bucharest, in the agricultural year 2014-2015. Wheat crop was part of a wheatbarley-sugar beet crop rotation. The experiment was a two-factor concept based on the split plot method, organised in three replications, with factor A - organic fertilization and factor B - mineral fertilization. Plant residues and manure were used as natural organic fertilizers. The variants of factor B were different rates of mineral nitrogen. Obtained results showed that organic and mineral fertilization increased wheat yield. Variant a3 was the best for organic fertilization - 40 t/ha leaves and epicotyls of sugar beet+N50, while the optimum solution for mineral fertilization was b4 - N150. For the organically unfertilized variants, the highest yield resulted from mineral fertilizer with N200 (b5), but N100 (b2) was the best economic solution because of the number of fall plants.

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BORUGĂ T., CIONTU C., BORUGĂ I., SĂNDOIU D.I. 2016, THE INFLUENCE OF ORGANIC AND MINERAL FERTILIZATION ON YIELD OF THE WHEAT GROWN ON REDDISH PRELUVOSOIL. AgroLife Scientific Journal, Volume 5, Number 2, ISSN 2285-5718, 19-23.

THE INFLUENCE OF Rhizobium INOCULATION AND NITROGEN/MOLYBDENUM FERTILIZATION ON THE GROWTH CHARACTERISTICS OF RED CLOVER

Published in AgroLife Scientific Journal, Volume 6, Number 2
Written by Niculae DINCĂ, Daniel DUNEA

This paper presents the individual and combined effects of inoculation and nitrogen (N)/molybdenum (Mo) fertilization (8 treatments) on the biological efficiency of red clover in controlled conditions. The rationale of the study was to establish the influence of Mo on the biological efficiency of red clover in the presence or the absence of N fertilization and inoculation of Rhizobium leguminosarum biovar. trifolii, and whether the results can lead to the improvement of classical crop technologies and the fertilization plan for obtaining superior forage yields. The effects of the treatments were evaluated using 5 replicatesbased on the average height, the dry weight, the density and the number of nodules on the roots of the red clover plants. Diploid cultivar Violettawas seeded in vegetation pots with the same amount of seeds and maintained 60 days in controlled conditions of a growth chamber. In the inoculation variants (5-8), the seeds were bacterized with R. trifolii-treated strains using the Nitragin® product (B type) using 7.5 g Nitragin/kg clover seed, dissolved in about 25 mL cold water. After pre-homogenization of the seed in the resulting solution, it was sown with the same quantity in all the repetitions of the variants. The bacterial solution contains at least 100 million viable cells g-1 of R. trifolii. Nitric fertilization was done with ammonium nitrate (34.5% N) supplied prior to sowing in an equivalent dose of 100 kg N ha-1. Molybdenum (0.02 Mo) was supplied using a uniform foliar spraying with three applications. Descending ranking and multiple comparisons (Duncan test) of treatments were performed. The seed inoculation, without nitrogen fertilization provided relatively equivalent biomass yieldsto fertilized variants. Foliar fertilization with molybdenum did not determine higher dry weight amounts, but when combined with nitrogen established significant amounts of dry matter per plant. From the yield formation point of view, the variants in which a large number of nodules were formed did not correlate positively with dry matter accumulation; however, they can have a particular importance in improving the reserves of assimilable nitrogen available in the soil.

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DINCĂ N., DUNEA D. 2017, THE INFLUENCE OF Rhizobium INOCULATION AND NITROGEN/MOLYBDENUM FERTILIZATION ON THE GROWTH CHARACTERISTICS OF RED CLOVER. AgroLife Scientific Journal, Volume 6, Number 2, ISSN 2285-5718, 83-88.

THE INFLUENCE OF SIMULATED ACIDIC RAIN ON PLANTS VOLATILE ORGANIC COMPOUNDS EMISSION AND PHOTOSYNTHETIC PARAMETERS

Published in AgroLife Scientific Journal, Volume 6, Number 2
Written by Lucian COPOLOVICI, Adelina BAN, Ioana FAUR, Dana COPOLOVICI

Acidic rain has received increasing interest due to the raising emissions of SO2 and NOx which determine a decrease of rain water pH under 5. The influence of such water deposition on plants leaf includes necrosis and nutrient losses. In this study the influence of simulated acidic rain on Phaseolus vulgaris L plants has been studied. In order to simulate the acidic rain, we used three different pH values (4, 4.5 and 5) of sulphuric acid solution which could occurred in the nature. The photosynthetic parameters decrease in the first 24 hours after stress application but recovered at the initial values after but only in the case of an acidic rain with pH higher than 5. The green leaf volatiles emission scale with strength stress and terpenes emission has been shown to have some protective effect. The visible symptoms of damage (chlorosis and necrosis) have been highlighted using light microscopy.

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COPOLOVICI L., BAN A., FAUR I., COPOLOVICI D. 2017, THE INFLUENCE OF SIMULATED ACIDIC RAIN ON PLANTS VOLATILE ORGANIC COMPOUNDS EMISSION AND PHOTOSYNTHETIC PARAMETERS. AgroLife Scientific Journal, Volume 6, Number 2, ISSN 2285-5718, 73-76.

THE INFLUENCE OF THE CHEMICAL COMPOSITION OF MAIZE, BARLEY AND PEAS HYBRIDS ON THE DIGESTIBILITY OF COMPOUND FEED FOR PIGS

Published in AgroLife Scientific Journal, Volume 6, Number 2
Written by Monica MARIN, Camelia HODOȘAN, Georgeta DINIȚĂ, Carmen Georgeta NICOLAE

The development of animal production is a priority because it provides the most important food resources from the nutrition point of view for the entire population, and the demographic explosion and rise of living standard have led to the increased demand for food of animal origin. The profitability of pig growth is influenced by their rational feeding. It is known that food production expenses have the largest share in food production, varying between 60 and 80% of the total of these expenditure. As a result, particular attention should be paid to the maximum efficiency of compound feed in order to make it transformed in human food products with an as high as possible percentage. To achieve this goal, the nutrients from the ratio should be correlated with the physiological requirements of the animals. For this purpose, in this paper was analyzed the influence of maize, barley and peas hybrids on the apparent digestibility of nutrients from the compound feeds for pregnant sows, lactating sows and piglets during weaning. The preparation of recipes for mixed feeds requires a good understanding of the basic principles of nutrition and how diet should be individualized based on age, gender, physiological status. The apparent digestibility of the analyzed organic substances (crude protein, crude fat, crude fiber) from the compound feed recipes was influenced by the chemical composition of the compound feeds used, especially the crude fiber content, as well as the swine physiological state.

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MARIN M., HODOȘAN C., DINIȚĂ G., NICOLAE C.G. 2017, THE INFLUENCE OF THE CHEMICAL COMPOSITION OF MAIZE, BARLEY AND PEAS HYBRIDS ON THE DIGESTIBILITY OF COMPOUND FEED FOR PIGS. AgroLife Scientific Journal, Volume 6, Number 2, ISSN 2285-5718, 127-132.

The influence of tillage system and pre-emerging plant on economic efficiency and production at wheat cultures in the Somes Plateau

Published in AgroLife Scientific Journal, Volume 3, Number 2
Written by Adrian Ioan POP, Teodor RUSU, Ileana BOGDAN, Doru Ioan MARIN, Paula MORARU, Bogdan Matei DUDA, Camelia Liliana COSTE

Analysis of economic efficiency of wheat crop depending on the tillage system highlights the influence of tillage, in terms of primary production, costs of production and the rate of profit. Economic efficiency indicators reveal wheat crop profits of 289-290 lei/ha recorded in versions made with paraplow and rotary harrow. In the case of conservative soil tillage at wheat crop that came after wheat, we recommed using tillage systems with paraplow and rotary harrow, systems that achieved the highest rate of profit with values between 14.94 and 14.96%. Economic efficiency of wheat crop grown after soybeans is much higher than wheat grown after wheat. So if the average profit is 274 lei/ha, for wheat after wheat version, in the one with prior soybean rotation, average profit reached 356 lei/ha. Significantly, in the case of wheat after soybean cultivation, the maximum profit is obtained when the soil was worked with rotary harrow or paraplow. Based on economic efficiency regardless of previous plant for wheat crop we can use unconventional soil tillage systems with paraplow and rotary harrow, so the chisel usage remains an alternative in case the first two mentioned systems can not be used. The wheat production in experiences was influenced by the tillage system and preceding plant. When the wheat followed soybean in rotation, yields exceeded 4000 kg/ ha, with values ranging from 4663-4800 kg/ha. Production levels due to the previous plant (soybeans) without tilling was able to lead to differences statistically ensured compared to the witness variant. We also notice that the predecessor soybean recorded higher yields compared to the classic variant in the plots where the soil was worked with paraplow (a3) and rotary rotary harrow (a4).

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Adrian Ioan POP, Teodor RUSU, Ileana BOGDAN, Doru Ioan MARIN, Paula MORARU, Bogdan Matei DUDA, Camelia Liliana COSTE 2014, The influence of tillage system and pre-emerging plant on economic efficiency and production at wheat cultures in the Somes Plateau. AgroLife Scientific Journal, Volume 3, Number 2, ISSN 2285-5718, 54-61.

The metabolites of streptomicetes as immunostimulatorin chickens rising

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Nicolae STARCIUC, Alexandru MANCIU, Svetlana BURTSEVA, Maxim BIRSA, Iulia BEREZIUC

An important part of chickens rising is feeding. A good nutrition is reflected in the bird's performance and its products. Actually the use of additives feed as immunostimulatory is in a great scale. For these reasons our investigations were aimed at studying the influence of metabolitesextracted from Streptomyces strains on the main indices of chickens productivity. Actinomycetes are a group of prokaryotic microorganisms with many important producers of biologically active substances known to wide application in human and veterinary medicine. In ourexperimentswasused the dry and metabolites of streptomycetes which were administered to 3 groups of chickens since one day age respectively in combefeed a dry biomass - 1 g/1 kg and cultural liquid - 1 ml/1 l in drinking water, daily. The duration of examination period was 70 days. Fromeachgroup of chickens periodically were sampled bloud to investigate the total serum protein,albumins and cholesterol. As a results was established that the total protein in bloud serum of experimental groups chickens I and II which was feed with streptomycetes biomass and cultural liquid in drinking water, at the age of 15 days was 31.23 and 30.53 g/l compared with 28.83 g/l on chickens from the control group, respectively albumins was 13.67 g/l compared with 12.33 g/l in the control chickens group, and cholesterol was 4.63 and 4.3 g/l on chickens in groups I and II compared with 4.5 g/l on chickens from the control group. The obtaining results show that the metabolitesof streptomycetes has the stimulatory effect tosomebloodbiochemicalindexes of chickens.

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Nicolae STARCIUC, Alexandru MANCIU, Svetlana BURTSEVA, Maxim BIRSA, Iulia BEREZIUC 2015, The metabolites of streptomicetes as immunostimulatorin chickens rising. Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 172-175.

THE PEDOGENETICAL FACTORS OF SOIL IN THE HILLY AREA OF THE MIDDLE PRUT FROM THE REPUBLIC OF MOLDOVA

Published in AgroLife Scientific Journal, Volume 5, Number 2
Written by Olesea COJOCARU

This article shows that pedogenesis factors of soils in the village Negrea, Hancesti district are typical for our area from point of view of relief, climate, solification rocks, peculiarities of soil cover and its use in agriculture. The main factor that ensured diversity of soil units in the area of Middle Prut is soil erosion. The object of study occupied the northeast and the middle of the agricultural land of the village New Negrea. Approximate distance from the village New Negrea to the main cities is as follows: Hancesti - 23 km, Chisinau - 60 km. One peculiarity of rocks solification is the texture with a high content of fine sand (15-30%). As content of this fraction is not characteristic for loess deposits actual (Cerbari et al., 2010; Cojocaru, 2015). The soils on the slopes are affected by denudation and evolve through pedogenesis compensation - denudation, in the sense that relatively long period going slow denudation; there is also a certain development of soil in the depth, pedogenesis thus compensating, at least partial denudation.

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COJOCARU O. 2016, THE PEDOGENETICAL FACTORS OF SOIL IN THE HILLY AREA OF THE MIDDLE PRUT FROM THE REPUBLIC OF MOLDOVA. AgroLife Scientific Journal, Volume 5, Number 2, ISSN 2285-5718, 38-43.

The perspective of cultivation and utilization of the new leguminous grasses species in Moldova

Published in Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1
Written by Alexandru TELEUTA, Victor TITEI, Sergiu COSMAN

The development and modernization of our country’s agriculture is related to the revitalization of the animal breeding sector along with the implementation of new genotypes of animals and diversification of fodder production, balanced in terms of quantity and quality throughout the year, suitable for the physiological requirements of animals, and qualitative products as required in the market. Scientific research conducted in the Botanical Garden (Institute) of the ASM over decades was aimed at mobilization, improvement and implementation of new non-traditional plant species that use efficiently photosynthetic active radiation and land resources to obtain fodder with a high level of vegetable protein, the fodder leguminous grasses (fam. Fabaceae Lindl.) play an important role. We have studied the biological peculiarities, productivity, chemical composition and nutritional value of new fodder leguminous plant species Astragalus galegiformis, Onobrychis inermis and Medicago tianschanica of the collection of non-traditional fodder plants of the Botanical Garden (Institute) of the ASM, the traditional forage crop alfalfa served as control variant. The nutritional value of fresh mass accounts: the Astragalus galegiformis - 0.27 nutritive units, 3.26 MJ metabolizable energy and 146g digestible protein/nutritive unit; Onobrychis inermis - 0.25 nutritive units, 2.56 MJ metabolizable energy and 154 g digestible protein/nutritive unit; Medicago tianschanica - 0.24 nutritive units, 2.86 MJ metabolizable energy and 173 g digestible protein/nutritive unit and alfalfa - 0.21 nutritive units, 2.28 MJ metabolizable energy and 164 g digestible protein/nutritive unit. Due to the productivity and high and stable quality of fodder, use of the plantation for a long period of time, capacity of fixing atmospheric nitrogen, the new fodder leguminous species Astragalus galegiformis, Onobrychis inermis and Medicago tianschanica can serve as initial material for enriching the range of forage crops

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Alexandru TELEUTA, Victor TITEI, Sergiu COSMAN 2015, The perspective of cultivation and utilization of the new leguminous grasses species in Moldova. Scientific Papers. Series "AgroLife Journal", Vol. 4 ISSUE 1, PRINT ISSN 2285-5718, 186-191.


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