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Nitrogenous fertilizer

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  • The results of this study showed that nitrogen fertilization influenced variably the chemical composition of P. plicatulum regardless of the phenological stage and the cutting year. In fact, crude protein, Ash, digestible organic matter, digestible nitrogenous matter and metabolizable energy increased significantly (p

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  • This study examined the effectiveness of nitrogen fertilization and application of microbiological preparations in potato cultivation. The experiment factors were doses of nitrogen of 0, 60, 120, and 180 kg N ha–1 and microbial preparations of BactoFil B10, Effective Microorganisms EM, and UGmax

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  • Bioslurry obtained from biogas plants has the potential to reduce the use of expensive chemical fertilizers and increase yields. A field experiment was conducted to investigate the growth response and yield production of okra fertilized with various combinations of bioslurry and nitrogen fertilizer.

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  • The results of this research indicate that nitrogen fertilization combined with zinc application should be expressed mainly by lower nitrate accumulation in the edible parts of broccoli.

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  • Camellia sinensis L. is one of the most economically important crops in the world today. The leaves of this plant are harvested for tea production on a massive scale through a process that requires a large amount of inorganic nitrogen (N). However, knowledge of how inorganic nitrogen regulates the growth physiology of C. sinensis L. remains limited.

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  • The use of legume crops in maize rotation systems may decrease the need for nitrogen (N) fertilization and increase total output. The effect of previous crops (wheat, barley, lentil, Hungarian vetch, and fallow) and different N fertilization rates (0, 120, 160, 200, and 240 kg of N ha–1) on yield and N content of silage maize (Zea mays L.) were evaluated under irrigated conditions in Diyarbakır, Turkey.

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  • Soil organic matter (SOM) is essential to all soil processes that have an impact on crop production and the environment. Soils of the semi-arid Mediterranean region are low in SOM due to environmental conditions (temperature, moisture) and centuries of cultivation.

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  • This study was designed to find correlations between the rate of nitrogen and potassium and basil herb quality resulting from essential oil content and composition. An increase in the amount of nitrogen in the nutritional environment of the plants resulted in the enhanced accumulation of essential oil, as well as in a rise in linalool and germacrene D concentration.

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  • This research was carried out in order to determine the effects of nitrogen and phosphorus fertilization on yield, some fruit characteristics, hormone concentrations, and alternate bearing in pistachio (Pistacia vera L.) cv. ‘Kırmızı’ grafted on P. vera over 3 consecutive years.

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  • Field experiments were performed to identify an effective fertilizing scheme for direct-seeding rice (DSR) fields in the Taihu Lake Basin in east China. Based on local traditions, 3 typical fertilizing schemes (FS-1, FS-2, and FS3) were evaluated, in consideration of ensuring a certain rice yield and relatively low nitrogen (N) loss.

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  • The field experiment was laid out with randomized block design with split plot and three replications during the 1991-92 years. Each plot was 16 m2. Tobacco-waste at the rates of 0, 10, 20, 30 and 40 tons/ha were applied to the plots and Bezostiya wheat variety was sown in 23rd October, 1991.

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  • The experiment was carried out to observe plant growth under different nitrogen level and evaluate effect of nitrogen combination with phosphorus and potassium on carrot, cabbage, onion, potato, and tomato in Tsukuba International Cooperation Center. Root weight of carrot decreased when nitrogen was applied excess, at 200% It was highest at 100% in both with PK and without PK.

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  • All plants when carefully burned leave a portion of ash, ranging widely in quantity, averaging about 5 per cent, and often exceeding 10 per cent of the dry weight of the plant. This plant ash represents inorganic substances taken from the soil by the roots. In addition, the nitrogen of plants, averaging about 2 per cent and often amounting to 4 per cent, which, in burning, passes off in gaseous form, is also usually taken from the soil by the plant roots. A comparatively large quantity of the plant is, therefore, drawn directly from the soil. Among the ash...

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  • The use of industrially manufactured nitrogen (N) fertilizers increased rapidly in developed countries between 1960 and 1980. This facilitated a large increase in the production of feed and food grains (maize, wheat, and rice) per unit of cultivated land, but in some regions it also contributed to enrichment of surface and groundwater with various forms of nitrogen. Fertilizer, however, is not the only source of nitrogen that can cause contamination of surface waters.

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  • • There is need to diversify urban-development activities within the municipality. An outward spread of these development activities and the creation of satellite towns in areas such as Olkaria, Sulmac and Sharlimar would minimise the pressure on the natural environment, land, forests, air and water resources, as well as on the capacities of socio-economic infrastructures such as sewerage and water supply facilities and roads. This will also result in a reduction of land use conflicts, which is a major cause of environmental degradation in any given urban scenario. ...

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  • By far the most important for the present publication, in terms of the quantity mined and potential impact on the environment, are phosphate and potash. The production of phosphorous and potassium min- eral fertilizers relies essentially on the mining of mineral concentrations, in the form of ore deposits from the earth's crust. Nitrogen mineral fertilizers, on the other hand, are almost entirely based on ammonia manufactured from the abundant source of atmos- pheric nitrogen, water and energy.

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  • Bat guano has been composted thoroughly by the beetles and the microorganisms on the floor of the caves. However, guano from attics of buildings may not have been processed by beetles. If it still looks like mouse droppings it is not processed and should be handled with care to avoid disease exposure. Use 1-2 teaspoons per 6î pot diameter. Repeat in 4-6 weeks if necessary. In the flower and vegetable garden use 1-3 quarts per 100 square feet. However guano is a slow release fertilizer and will not burn even if using double the recommended amounts. Itís always better to...

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  • Every year, farm operators apply more than 12 million tons of nitrogen fertilizer and 8 million tons of phos- phorus fertilizer to agricultural land in the U.S. Unless carefully managed, much of it is carried off the fields by runoff or percolates into drainage systems, eventually ending up in streams, rivers, lakes and underground aquifers. Animal manure from livestock is also an important contributor to nutrient pollution, particularly phos- phorus.

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  • Nitrogen contamination may come from a variety of sources: municipal sewage, animal manure, atmospheric deposition, biological N fixation, soil organic N, and/or nitrogen fertilizers. The consequences of contamination in a specific water body will depend upon the amount of contamination from all sources and characteristics of the receiving waters. Shallow rivers, wetlands, lakes, and reservoirs, have some capacity to remove nitrogen by microbial denitrification.

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