The formation of the leaf surface area and biomass of the miscanthus giganteus plants depending on the sewage sludge rate

Abstract

The case study to determine the peculiarities of Miscanthus giganteus aboveground biomass formation depending on sewage sludge and composts rate carried out in the Precarpathian region of Ivano- Frankivsk province on sod-podzolic soils. The largest area of the leaf surface of miscanthus is formed in the trials where fresh sewage sludge was applied in the rate of 20 - 40 t/ha. The leaf surface area increases from 19 up to 24.0 cm2/plant, and the yield of raw mass of plants at the level of 23.5 - 25.1 t/ha due to increasing rates of sewage sludge application. The highest indicators of net photosynthesis productivity were found in the period of intensive growth, which amounted to 7.78 g/m²/day and in the maturation period of 7.56 g/m²/day in the trial SS - 40 t/ha + N10P14K58. The amount of dry mass of miscanthus plants significantly depends on the height of the shoot and the leaf surface area of the plants. The use of compost based on sewage sludge and straw in a ratio of 3: 1 at a rate of 30 t/ha contributes to the dry weight of miscanthus plants at the level of 15 t/ha.

Impact of New Varieties on the Yield and Quality of Wheat, Oats, and Sudangrass in North-Eastern Kazakhstan

“…Breeding and seed production, working with plant material of local origin, can, to some extent, meet the above requirements. The stability of the variety depends on the genomes of the parent forms, and the adaptive reactions of plants allow obtaining high yields [26][27][28]. However, according to Kazakh researchers, Kurishbaev et al [29], in recent decades, the introduction of new varieties of grain crops into agricultural production in central and northern Kazakhstan practically does not give an increase in yield indicators, which the authors attribute to the low level of breeding work in the country.…”

Harnessing Heterogeneity: Clustering Kazakh Spring Rapeseed for Breeding Value

“…According to Hu et al [30], the development of spring rapeseed breeding for resistance to abiotic environmental factors of drought resistance and acid resistance is carried out using breeding, physicochemical and biotechnological methods. No tangible success has been achieved in breeding spring rapeseed in this direction, so the creation of source material with pronounced stress-resistant properties is an important breeding problem [31,32].…”

Study of Natural Regeneration of Sogdian Ash (Fraxinus Sogdiana Bunge) and Silvicultural Measures to Promote it in the Sharyn River Floodplain of Almaty Region

“…Among the possible routes of invasion of the fungus into Europe from its natural range in easternmost Asia, movement along the inextricable Eurasian ash species habitat chain cannot be ignored. In Estonia, a species of ash tree, Fraxinus sogdiana, naturally growing in Central Asia, was found to be susceptible to H. Fraxineus [30][31][32][33] . Thus, for Sogdian ash trees, the development of prevention and protection methods against species-specific entomoparasites and fungi is also relevant.…”