Hay yield of alfalfa varieties depending on weather conditions and the application of the growth-regulating drug Emistim C

Антипова, Лідія Климівна

doi:10.31521/2313-092x/2020-1(105)-6

Cited by 3 publications

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“…One of the high quality feed is the production of perennial grasses (Vasileva and Pachev, 2015;Antipova, 2020). It is well known that in the structure of sown areas for perennial grasses it is necessary to allocate 8-10%.…”

Section: Resultsmentioning

confidence: 99%

Role of Perennial Herbs in the Development of Livestock in Ukraine

Vasileva¹,

Antipova²

2021

IJIAAR

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The planted areas of the perennial herbs in Ukraine reduced significantly the gross harvest of hay, green mass for silage, haylage, grass flour. Consequently, the deterioration of the fodder base has been proven, which negatively affects the development of the livestock industry. A decrease in the number of farm animals was established, which affected the level of production of meat and dairy products of both cattle and sheep, goats, and also entailed a discrepancy between the consumption of meat and milk by the population and the rational norms of human nutrition.

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Section: Resultsmentioning

confidence: 99%

Role of Perennial Herbs in the Development of Livestock in Ukraine

Vasileva¹,

Antipova²

2021

IJIAAR

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The formation of green mass yield of alfalfa under different doses and periods of mineral fertilizers application in the conditions of the Right Bank Forest Steppe of Ukraine

Kozak,

Panchenko,

Kozak

2024

Agrobìologìâ

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Doses of fertilizers and timing of their application had an effect on the growth, development, survival of alfalfa and on the energy efficiency of its cultivation. The best survival of alfalfa was observed in the options where P120K120 was applied twice during the growing season. At the same time, survival was within the range of 72.0-74.1% for the first cut, 66.2-68.4% for the second cut, and 46.5-47.2 % for the third cut. The lowest survival of alfalfa plants was observed on the variant without fertilizers and, respectively, on the cut, it was 69.5, 63.5 and 41.9 %. The largest leaf surface area of alfalfa was observed in the variant with P120K120 application in autumn and spring and was 129,000 m2 /ha, which exceeded the control by 2.3 times. On the variants with introduction of alfalfa P120K120 and P60K60 during the growing season, the yield of green mass increased by 1.9 times compared to the control. The highest green mass yield of alfalfa was obtained with double application of P120К120 – 54.2 t/ha, which significantly exceeded the control. Portion application of fertilizers (P60K60 in autumn and P60K60 in spring) has no significant advantage over P120K120 fertilization in spring or autumn (the yield was 39.9, 40.4 and 39.2 t/ha, respectively). The green mass yield of alfalfa was unevenly distributed according to the terms of mowing. On average, according to the experiment, the first cut gave 35.9 % of green mass, the second cut – 39.3%, and the third – only 24.8%. The use of mineral fertilizers in the dose of P60K60 led to an increase in the total energy consumption of alfalfa cultivation by 1.89 GJ/ha, or by 6.71%, compared to the control. When applying P120K120, the costs increased by 4.39 GJ/ha, or by 15.59%, compared to the control. Mineral fertilizers application under alfalfa helped to increase the energy coefficient. The introduction of P60K60 led to an increase in the energy coefficient by 11.7%, compared to the control, P120K120 – by 31.9%, P60K60 in autumn P120K120 in spring – by 39.3%, and P120K120 in autumn and P120K120 in spring – by 56.2%. It was established by calculations that mineral fertilizers contributed to the reduction of the energy intensity of 1 ton of fodder units. So, if the energy intensity of 1 ton of feed units was 1.06 GJ in the version without fertilizers, then the introduction of P60K60 led to a decrease in this indicator by 10%, P120K120 by 24.0%, P60K60 in the fall, P120K120 in the spring by – 28.1%, and P120K120 in autumn and P120K120 in spring – by 36.1%. Key words: alfalfa, fertilizer doses, time of application, yield of green mass, alfalfa slopes, economic efficiency, plant density, growing season, plant survival.

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Elements of winter wheat yield structure depending on seeds growing technology

Polishchuk,

Konovalov

2024

Agrobìologìâ

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The article highlights the influence of different technologies of winter wheat seeds cultivation on the yield structure elements, its formation and quality. It was found that the formation of the yield structure ‑ the number of plants, productive stems, grains per ear and grain weight per ear – depended on the crop cultivation technologies. It was found that the varieties reaction to the cultivation technology was different. According to the basic seed cultivation technology in medium-early and medium-ripening varieties no significant difference was found in the tillering coefficient and grain weight per ear. There was only a tendency to increase these indicators of medium-ripening varieties. The highest coefficient of productive tillering (1.4) was in the «Astarta» variety, which provided the most productive stems, and the weight of grains in the ear of this variety was the lowest, while the seed yield was 7.00 t/ha and was significantly lower than in other varieties. The use of energy-intensive technology provided a significant increase in biological yield of varieties of both ripeness groups compared to the baseline. Under this technology of winter wheat cultivation, as well as under the baseline, the plant density was higher in medium-early ripening varieties and amounted to 395 plants/m2 , while in medium-ripening varieties it was 10 plants/m2 less. However, the tillering coefficient and the number of productive stems were higher in medium-ripening varieties, which, in combination with agrotechnological measures – increased doses of fertilizers, both basal and top dressing, protection of crops from diseases (double fungicide treatment of crops) – ensured a significantly higher yield, which on average was 0.11 t/ha higher than in mediumripening varieties. The use of energy-rich technology with elements of biologization of winter wheat seed cultivation ensured the highest biological yield of seeds of all varieties of both maturity groups compared to both basic and energy-rich technologies. Significantly higher biological seed yields were observed in medium-ripening varieties compared to medium-early ripening varieties. It should be noted that under the energy-rich technology with the elements of biologization of cultivation, the coefficient of productive tillering and the weight of grains per ear of all varieties were almost the same. Key words: technology, tillering coefficient, mass of grains per ear, productive stems, productivity, seed germination.

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Hay yield of alfalfa varieties depending on weather conditions and the application of the growth-regulating drug Emistim C

Cited by 3 publications

References 0 publications

Role of Perennial Herbs in the Development of Livestock in Ukraine

Role of Perennial Herbs in the Development of Livestock in Ukraine

The formation of green mass yield of alfalfa under different doses and periods of mineral fertilizers application in the conditions of the Right Bank Forest Steppe of Ukraine

Elements of winter wheat yield structure depending on seeds growing technology

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