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Wyszukujesz frazę "Alfalfa" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Morphological Effects of Stymjod Foliar Application on Medicago × varia T. Martyn
Autorzy:
Sosnowski, Jacek
Toczyska, Ewelina
Truba, Milena
Powiązania:
https://bibliotekanauki.pl/articles/123375.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
iodine
alfalfa
plant morphology
stem
leaves
mass of plants
Opis:
The aim of the study was to investigate how the foliar application of iodine, as well as its concentration in the working liquid, influence the growth of fresh and dry weight of plants, stems, leaves, roots and number of shoots and leaf laminae of sand Lucerne. The experiment was carried out in vases. The three plants that developed the largest number of leaves in the vase were left. The experimental factors as the plant growth regulator with the trade name Stymjod in three concentrations of 1.5%, 3% and 4.5% in the working liquid were introduced; the control involved distilled water. Two plant applications were performed. The first one in 6 appropriate leaf phase and the second in the branching formation phase. A single dose of the working liquid was 50 ml per vase. This dose of liquid caused the complete sprinkling of plants in a vase. The obtained results were statistically analyzed by means of analysis of variance. The experiment showed that the concentration of Stymjod in the working liquid is very important. It is difficult to say which concentrations gave the best results in cultivating sand lucerne. The present studies demonstrated that Stymjod applied foliarly at 4.5% concentration significantly affected the growth of stems and leaf blades. Additionally, 1.5% concentration increased the weight of fresh matter and dry matter of roots. The experiment showed that the effects of Stymjod application to hybrid alfalfa depended on its dose. It is difficult, however, to clearly state which concentration produced the best results so further research in this area is needed.
Źródło:
Journal of Ecological Engineering; 2019, 20, 8; 184-191
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Productivity of the Green Mass of New Alfalfa Cultivars Depending on the Effect of Macro- and Microfertilizers on Various Phosphorous Backgrounds
Autorzy:
Toktarbekova, Saltanat Toktarbek Kyzy
Meiirman, Galiolla Tolendinovich
Yerzhanova, Sakysh Tanyrbergenovna
Abayev, Serik Sarbayevich
Umbetov, Aman Kozhakhmetovich
Powiązania:
https://bibliotekanauki.pl/articles/124572.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
alfalfa
new cultivars
macrofertiliser
microfertiliser
phosphorus background
green mass yield
Opis:
The effect of phosphorus fertilizer on the yield of new alfalfa cultivars Kokorai, Osimtal, and Kokbalausa has been identified after the introduction of P0, P150, and P200 (active substance) with nitrogen N60, potassium K70, microelements (cobalt (Co), molybdenum (Mo)) on the three noted phosphorus backgrounds. Increasing the dosages of phosphorus increases the yield of the green mass of the three cultivars on various backgrounds without the introduction of any other types of fertilizers on average by 126.6% with P150, and by 35.9% with P200. The introduction of nitrogen N60 on all phosphorus backgrounds increased productivity by 112–117%, the introduction of potassium K70 – by 102–110%, the introduction of cobalt Co – by 113–122%, and the introduction of molybdenum Mo – by 115–126%. The highest productivity was observed in the Kokbalausa cultivar, the level of its green mass yield was 77.7 t/ha after the introduction of P200, 89.8 t/ha – after the introduction of P200N60, 82.9 t/ha – after the introduction of P200K70, 88.9 t/ha – after the introduction of P200Co, and – 89.5 t/ha after the introduction of P200Mo. Generally, the difference between the cultivars’ response to the fertilizer is weak, they all equally respond to the fertilizer.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 57-62
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lead in Agricultural Soils and Cultivated Pastures Irrigated with River Water Contaminated by Mining Activity
Autorzy:
Orellana, Edith
Custodio, María
Bastos, María Carolina
Cuadrado, Walter
Powiązania:
https://bibliotekanauki.pl/articles/125204.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
lead
accumulation
Lolium x hybridum
ryegrass
Medicago sativa
alfalfa
bioconcentration
Opis:
Agricultural soils that have been irrigated with the contaminated water from metallurgical mining activities for more than 70 years constitute an environmental problem as well as a concern for food security and human health. The presence of lead in the soil and cultivated pastures is highly dangerous, due to its toxicity, persistence and accumulation in plants and animals (cattle). This element enters the trophic chain of humans due to the intake of meat, milk and its derivatives. The concentration of lead was determined in the soil and the cultivated pastures with Lolium x hybridum Hausskn and Medicago sativa L. The soil and pastures samples collected from plots irrigated with river water contaminated with heavy metals at a depth of 0-20 cm. The content of Pb determined by the atomic absorption spectrophotometry. The results showed the lead concentrations in soil in the range of environmental quality standards for soils according to Peruvian regulations. In the soil with L. x hybridum and M. sativa the average content of lead was 57.17 ± 6.29 mg.kg-1 and 57.19 ± 8.99 mg.kg-1; in the above-ground tissues were 1.17 ± 0.69 mg.kg-1 and 1.62 ± 0.68 mg.kg-1, respectively. In addition, no significant differences were observed in the Pb content in the soil and plant tissues. The bioconcentration factor (BCF) in the above-ground tissues of L. x hybridum and M. sativa was less than one and they were not significant. Therefore, irrigation with long-term contaminated water is not a concern for the farmers in the Mantaro Valley.
Źródło:
Journal of Ecological Engineering; 2019, 20, 8; 238-244
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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