scholarly journals The Effect of Mineral Fertilization upon the Floristical Composition of the Mountain

2012 ◽  
Vol 69 (1) ◽  
Author(s):  
Florin PÄ‚CURAR ◽  
Ioan ROTAR ◽  
Anca BOGDAN ◽  
Roxana VIDICAN
Keyword(s):  
Plant Diversity ◽  
Mineral Fertilizers ◽  
Chemical Fertilizers ◽  
Mineral Fertilization ◽  
Considerable Decrease ◽  
Apuseni Mountains ◽  
Natural Grasslands ◽  
Chemical Fertilization ◽  
The Future ◽  
Mountainous Landscape

The administration of large quantities of chemical fertilizers may strongly diminish the plant diversity of semi-natural grasslands. In the Apuseni Mountains (Romania), the chemical fertilization is rarely used, but, considering the population’s decrease and the livestock diminish, this might have a greater importance in the future. The maintenance of semi-natural grasslands within the mountainous landscape depends greatly on fertilization. Our paper’s goal is to assess the influence of mineral fertilizers upon semi- natural grassland’s plant diversity. Mineral fertilizers complex NPK 20:10:10 ratio was applied in three quantities: 50N 25P 25 K, 100N 50P 50K, and 150N 75P 75 K. The large quantities of mineral fertilizers generated a considerable decrease of the plant diversity.

scholarly journals The Influence of Different Type of Management upon the Floristic Structure of Grasslands Systems, with Special Attention on Arnica montana L.

2013 ◽  
Vol 70 (1) ◽  
pp. 44-46
Author(s):  
Adriana MOREA ◽  
Ioan ROTAR ◽  
Roxana VIDICAN ◽  
Florin PÄ‚CURAR ◽  
Anamaria MÄ‚LINAȘ
Keyword(s):  
Plant Diversity ◽  
Soil Type ◽  
Mineral Fertilizers ◽  
Apuseni Mountains ◽  
Management Actions ◽  
Organic And Mineral Fertilizers ◽  
Natural Grasslands ◽  
Mountainous Landscape ◽  
Floristic Structure ◽  
Future Management

The maintenance of semi-natural grasslands within the mountainous landscape is deeply influenced by fertilization. Application of fertilizer will cause changes in the chemical composition of the plant and will increase the palatability, decreasing the denials. One should apply fertilizers taking into account the way of exploitation of the grassland. If the grasslands are grazed, much of the nutrients return into the meadow by manure, fattening being more important than on mowed lawns where all the nutrients taken from plants are exported. The aim of this paper was to assess the influence of organic and mineral fertilizers upon semi-natural grassland’s plant diversity on different soil types. The research was carried out in Apuseni Mountains, in an experimental field with one experience with organic fertilizers  ( T1 control, T2 10 t ha-1manure, T3 20 t ha-1 manure, T4 30 t ha-1 manure ) . Mineral fertilizers complex NPK 20:10:10 ratio was applied in three quantities: 50N 25P 25 K, 100N 50P 50K, and 150N 75P 75 K. The results showed that the largest quantities of mineral fertilizers generated a considerable decrease of plant diversity. For future management actions that are meant to maintain plant diversity in Apuseni Mountains, the organic fertilization with 10 t ha-1 manure quantities administrated annually or once on two years. In conclusion is justified to make organic treatments on Preluvosol Rodic soil type and mineral treatments on Eutricambosol Rendzinic soil type.

scholarly journals Impact of Irradiated Compost on Growth and Nutritional Status of Valencia Orange Grown in the Desert Areas

2019 ◽  
pp. 1-9
Author(s):  
Farid A. Mohamed ◽  
Mohamed Farouk Ahmed
Keyword(s):  
Nutritional Status ◽  
Vegetative Growth ◽  
Block Design ◽  
Mineral Fertilizers ◽  
Total Chlorophyll ◽  
Chemical Fertilizers ◽  
Mineral Fertilization ◽  
Loamy Sand Soil ◽  
Valencia Orange ◽  
Orange Trees

Aims: To evaluate the effect of compost application whether irradiated or not in addition to recommended mineral fertilization on growth and nutritional status of Valencia orange trees. Study Design: The design of the study is a randomized complete block design. The study was done on five-years-old Valencia orange grown in a loamy sand soil. Place and Duration of Study: The study was conducted in El-Shrouk yard -Cairo-Alexandria Desert Road through five successive seasons 2014, 2015, 2016, 2017 and 2018. Compost irradiation was done at the National Centre for Radiation Research and Technology, Atomic Energy Authority. Methodology: In addition to mineral fertilization, four main treatments were applied to Valencia orange trees, T1 three years application of non-irradiated compost, T2 four years application of non- irradiated compost, T3 and T4 similar to T1 and T2 while irradiated compost was applied. Shoot length and thickness, leaf number and area were calculated. Leaf N, P and K% as well as Fe, Mn, Zn and total chlorophyll content were measured. Results: Data revealed that application of compost especially irradiated form in combination with chemical fertilizers has a positive effect on vegetative growth of Valencia orange trees in addition to leaf content of nitrogen, phosphorus, potassium, iron, manganese, zinc and total chlorophyll. Four years application of compost regardless irradiation was superior to three years application. Combination of irradiated compost and four years application gave the highest values for the previously mentioned parameters. Conclusion: Addition of compost to chemical fertilizers improved the vegetative growth and nutritional status of Valencia orange trees. Irradiation of compost increased its efficiency that might reduce the time of application. Also, using compost, particularly in the newly reclaimed soil, greatly increase water and mineral fertilizers use efficiency, which in turn lead to saving in irrigation water and fertilization nutrients.

scholarly journals Physiological response of maize under different fertilization management under drought condition

2021 ◽  
Vol 13 (1) ◽  
pp. 10880
Author(s):  
Tayron R. S. COSTA ◽  
Matheus A. BORBA ◽  
José E. COSTA ◽  
Valéria F. O. SOUSA ◽  
Manoel B. ALBUQUERQUE ◽  
...  
Keyword(s):  
Plant Height ◽  
Photosynthetic Rate ◽  
Co2 Concentration ◽  
Mineral Fertilizers ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Internal Co2 Concentration ◽  
Stalk Diameter ◽  
Chemical Fertilization ◽  
Internal Co2

This work was aimed to evaluate the development of maize cultivated under different fertilization management, in order to establish an alternative for mineral fertilization. The experiment was carried out in the experimental area of Chã de Jardim, in Areia, Paraíba, Brazil. Six treatments were used with four replications. Plant height, stalk diameter, leaf number, chlorophyll a, b and total, photosynthetic rate, transpiration, stomatal conductance and internal CO2 concentration in the leaf were evaluated. In the 30 days after emergence, superiority of treatments was observed in the plants under chemical fertilization for plant height and number of leaves. For diameter of stalk the treatment organic fertilization + P and K showed superiority. At 60 days after planting the chemical fertilization provided the highest averages for plant height and stalk diameter. For the photosynthetic rate, transpiration and internal CO2 concentration, the treatment that presented the highest average was observed in plants under organic fertilization combined with P and K and N added in top-dressing. For the chlorophyll, the chemical fertilization provided the highest values. Organic fertilization in association with mineral fertilizers provided results close to those observed in mineral fertilization, being an alternative for nutritional management in maize.

scholarly journals Indicator Species for Oligotrophic Semi-Natural Grasslands in Apuseni Mountains

2011 ◽  
Vol 68 (1) ◽  
Author(s):  
Florin PACURAR ◽  
Ioan ROTAR ◽  
Anca BOGDAN ◽  
Roxana VIDICAN
Keyword(s):  
Plant Diversity ◽  
Indicator Species ◽  
Agricultural Systems ◽  
Apuseni Mountains ◽  
Large Plant ◽  
Indicator Value ◽  
Natural Grasslands

The extensive exploitation of agricultural systems is the factor which created the semi-natural grasslands with large plant diversity. These meadows’ persistence depends in a large extent on the extensive use which can be recognized in the field by the presence of certain species having an indicator value. This paper’s objective is to elaborate a list of indicator species for the extensive use of the semi-natural grasslands in the boreal floor.

Effects of Liming and Fertilization on the Dehydrogenase and Catalase Activities

2019 ◽  
Vol 70 (10) ◽  
pp. 3464-3468
Author(s):  
Alina Dora Samuel ◽  
Simona Bungau ◽  
Ilona Katalin Fodor ◽  
Delia Mirela Tit ◽  
Cristian Felix Blidar ◽  
...  
Keyword(s):  
Soil Quality ◽  
Catalase Activity ◽  
Low Dose ◽  
Farmyard Manure ◽  
Enzymatic Activities ◽  
Mineral Fertilizers ◽  
Mineral Fertilization ◽  
Favorable Conditions ◽  
Npk Fertilization

In this paper we provide new data about the soil enzyme activity as a biological process, which is an indicator for impacts of factorial combinations of lime and fertilizers applications. Five plots divided into fifteen subplots were sampled for determination of the enzymatic indicators of soil quality, based on the actual and potential dehydrogenase and catalase activities. The research revealed that limed soil samples, in comparison with unlimed ones, resulted in significantly higher soil enzymatic activities (p[0.05) in the upper (0-20 cm), while in the deeper (20-40 cm) layer, only catalase activity was significantly higher (at least at p[0.02). Mineral fertilization, in comparison with its farmyard manuring, led to an insignificant increase in each of the three enzymatic activities determined, excepting catalase activity which was significantly higher (0.05]p]0.02) in the 0-20 cm layer. Based on the absolute values of the enzymatic activities, the enzymatic indicators of soil quality (EISQ) were calculated. The mineral NPK-fertilization and low dose of lime in the 0-20 cm layer, and mineral NP-fertilization and low dose of lime in the 20-40 cm layer proved to be the best variants of fertilization. The enzymatic indicators of soil quality in these variants reached the highest values: EISQ=0.821 and EISQ=0.889, respectively, indicating the presence of high enzymatic activities. It should be emphasized that a balanced application of lime, mineral fertilizers and farmyard manure leads to the formation of favorable conditions for the development of microorganisms, growth of plants and for an intense and lasting enzymatic activity.

scholarly journals Soil fungal diversity in natural grasslands of the Tibetan Plateau: associations with plant diversity and productivity

2017 ◽  
Vol 215 (2) ◽  
pp. 756-765 ◽  
Author(s):  
Teng Yang ◽  
Jonathan M. Adams ◽  
Yu Shi ◽  
Jin-sheng He ◽  
Xin Jing ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Plant Diversity ◽  
Fungal Diversity ◽  
The Tibetan Plateau ◽  
Natural Grasslands ◽  
Soil Fungal Diversity

scholarly journals Influence of Mineral Fertilization and Liming on Maize Production on Argic Chernozem in the Burnas Plain

2021 ◽  
Vol 9 (1) ◽  
pp. 19
Author(s):  
Anca-Luiza Stănilă
Keyword(s):  
Agricultural Production ◽  
Soil Compaction ◽  
Climatic Conditions ◽  
Advanced Degree ◽  
Mineralization Process ◽  
Chemical Fertilizers ◽  
Mineral Fertilization ◽  
Maize Production ◽  
Number Of Factors ◽  
Medium Permeability

In order to elucidate some aspects regarding the content of nutrients in the soil or humus, the bioaccumulation and mineralization process of organic matter and correction of the soils reaction in the experimental field, within the agricultural holding SC Orhideea SRL Plopsoru, Locality Daia, Giurgiu County, research has been done with chemical fertilizers with NPK and liming - Ca(OH)2 on argic chernozem in maize culture from the Burnas Plain in different doses.Obtaining appropriate agricultural production on argic chernozems is limited by a number of factors such as relief, clay loam, low-medium permeability just below the plowed horizon advanced degree of soil compaction, located between 20-35 cm from the surface (plow sole) and climatic conditions.

scholarly journals Effect of the Sowing Method and Mineral Fertilizers on the Indicators of the Crop Yield Structure of Seed Alfalfa in the Ganja-Gazakh Zone of Azerbaijan

2021 ◽  
Vol 7 (7) ◽  
pp. 73-78
Author(s):  
P. Nabiyeva
Keyword(s):  
Crop Yield ◽  
Active Substance ◽  
Mineral Fertilizers ◽  
Mineral Fertilization ◽  
Yield Structure ◽  
Seed Crops ◽  
Positive Effect ◽  
Alfalfa Seeds

The article presents the results of research on the influence of the method of sowing and mineral fertilizers on the indicators of the structure of the yield of seed alfalfa in the Ganja-Gazakh zone of Azerbaijan. It has been established that the method of sowing and mineral fertilization has a positive effect on the indicators of the structure of the yield of seed alfalfa. For each method of sowing and mineral fertilization, alfalfa seeds had a positive effect on the indicators of the yield structure. To obtain irrigated gray-brown soils of high and stable yields of alfalfa seeds, it is necessary to form the density of the herbage of seed crops of 33.8–53.0 productive stems per 1 m of sowing methods 45 cm and the dose of mineral fertilizers N60P90K60 kg/ha active substance in the conditions of the Ganja-Gazakh zone Azerbaijan.

scholarly journals Site conditions and genotype influence polyphenol content in potatoes

2008 ◽  
Vol 34 (No. 4) ◽  
pp. 132-137 ◽  
Author(s):  
K. Hamouz ◽  
J. Lachman ◽  
J. Čepl ◽  
P. Dvořák ◽  
V. Pivec ◽  
...  
Keyword(s):  
Vegetation Period ◽  
Mineral Fertilizers ◽  
Site Conditions ◽  
Potato Tubers ◽  
Polyphenol Content ◽  
Mineral Fertilization ◽  
Total Polyphenols ◽  
Yellow Flesh

In the years 2005 and 2006 the effect of site conditions, yellow and purple fleshed varieties and mineral fertilization on the content of total polyphenols (TP) in potato tubers was investigated. In both years significantly the highest TP content (by 5.7 to 56.3% higher than in other localities) was determined at the Stachy locality; we ascribe it to apparently lower temperatures in the vegetation period at this locality of higher altitude. In the purple flesh Valfi variety TP content higher by 74 to 141% was recorded in average of both years, in comparison to yellow flesh varieties. In the group of eight yellow flesh varieties the highest TP content was recorded in the Ditta variety; it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties. TP content was not significantly affected by fertilization with mineral fertilizers.

scholarly journals The Cumulative Effect of Manure on a Festuca Rubra Grasslands for 15 Years

2017 ◽  
Vol 74 (2) ◽  
pp. 126
Author(s):  
Ioana VAIDA ◽  
Ioan ROTAR ◽  
Florin PACURAR
Keyword(s):  
Cumulative Effect ◽  
Floristic Composition ◽  
Shannon Index ◽  
Organic Fertilizers ◽  
Festuca Rubra ◽  
Apuseni Mountains ◽  
Yield Production ◽  
Rigorous Research ◽  
Natural Grasslands ◽  
Significant Yield

Over time, studies of the vegetation of natural grasslands have evolved from simple observations to rigorous research. Feed obtained from natural meadows without major technological imputations is mediocre in quality, and pastures in a rather advanced state of degradation. The main purpose of this paper is the ecological and fodder evaluation of the Festuca rubra type of grasslands in the Apuseni Mountains based on the floristic composition and the productivity of these grasslands. The experience was carried out in Ghetari village, Apuseni Mountains, which was located in 2001, following the method of randomized blocks with 4 experimental variants in 4 rehearsals. Each variant were fertilized with organic inputs using the same quantities each year. In the paper we use the results obtained after 15 years of experience. The application of organic fertilizers caused significant changes in the canopy causing changes in the dominance of the type of grassland. The livestock manure applied on the studied grassland has increases significant yield production at all variants of fertilization.In this paper it was shown on which species the productivity of the grassland increased from the control variant to the fertilized variant with the maximum dose. Regarding the analysis of the phytodiversity, this tells us if the number of species is reduced in all the treatments, 10 t/ha of manure leads to an increase in phytocoenosis equivalence and implicitly to the Shannon index.

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