西波兰条件下生长的能量柳

Y. S. Furmanets, M. Furmanets
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The increase of phosphorus and potash fertilizers rate to 200 kg a.i./ha contributed to an increase in dry mass up to 23.6 and 13.0 t/ha compared to the variant without fertilizers. A similar result was obtained on sod-podzolic cohesive-sandy soil. The lowest indicators were in the variant without fertilizers at the planting density of 10 thousand pcs/ha – 26.9 t/ha, 15 thousand pcs/ha – 30.2 t/ha and 20 thousand рcs/ha – 35.6 t/ha dry biomass. The application of mineral fertilizers with rate of N60P100K100 for all planting densities increased the dry biomass yield to 34.4; 38.5; 45.3 t/ha, respectively. Increase of phosphorus and potash fertilizers rate up to 200 kg a.i./ha against the background of N60 contributed to an increase of energy willow yield up to 39.9 t/ha (with a planting density of 10 thousand pcs/ha), 44.1 t/ha (15 thousand pcs/ha) and 52.3 t/ha (20 thousand pcs/ha) of dry biomass. 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引用次数: 0

摘要

介绍了在波兰西部条件下,种植密度、施肥和土壤类型对能量柳生产力影响的研究结果。在深灰色浅质壤土上,以2万株/公顷的种植密度和N60 P200 K200的施肥量,可获得干生物量102.9 t/公顷的最高产量。在深灰色浅壤土和灰化土黏结砂质土上,无施肥变异中能量柳种植密度为1万株/ hm2时干生物量产量最低,分别为49.1和26.9 t/ hm2。施用氮肥N60、P100、K100可使干生物量产量根据土壤类型增加13.5 ~ 7.5 t/ hm2。磷肥和钾肥用量增加到200 kg a.i./ hm2时,干质量比不施肥的品种分别增加23.6 t/ hm2和13.0 t/ hm2。在灰化土黏结砂土上也得到了类似的结果。干生物量指标最低的品种为无肥料品种,种植密度为1万pcs/ha ~ 26.9 t/ha、1.5万pcs/ha ~ 30.2 t/ha和2万pcs/ha ~ 35.6 t/ha。在各种植密度下施用氮肥N60P100K100可使干生物量产量提高到34.4;38.5;分别为45.3 t/ha。在N60背景下,将磷和钾肥施用量增加至200 kg a.i./ha,可使能量柳产量增加至39.9 t/ha(种植密度为1万株/ha)、44.1 t/ha(1.5万株/ha)和52.3 t/ha(2万株/ha)。平均5年,在深灰色浅壤土上,在种植密度为2万pcs/ha时,施用N60P200K200施用量的能源柳固体生物燃料产量最高,为22.7 t/ha,能量为363 GJ/ha,而在相同生长条件下,在草灰粘结砂质土壤上,柳树固体生物燃料产量低11.1 t/ha,能量为178 GJ/ha。关键词:能源柳,干生物质,固体生物燃料,能源,土壤
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Growing energy willow in the conditions of Western Polissia
The research results of influence of the planting density, fertilization and soil type on the productivity of the energy willow in the conditions of Western Polissia are presented. On average over five years of research in the cultivation of energy willow it was found that the highest yield of dry biomass 102.9 t/ha was obtained on dark gray light loamy soil with a planting density of 20 thousand pcs/ha and fertilizer application at the rate of N60 P200 K200. The lowest yield of dry biomass was at planting density of energy willow of 10 thousand pcs/ha in the variant without fertilizers on dark gray light loamy soil and sod-podzolic cohesive sandy soil – 49.1 and 26.9 t/ha, respectively. The mineral fertilizer application with rate of N60 P100 K100 ensured an increase in the yield of dry biomass by 13.5 and 7.5 t/ha depending on the type of soil. The increase of phosphorus and potash fertilizers rate to 200 kg a.i./ha contributed to an increase in dry mass up to 23.6 and 13.0 t/ha compared to the variant without fertilizers. A similar result was obtained on sod-podzolic cohesive-sandy soil. The lowest indicators were in the variant without fertilizers at the planting density of 10 thousand pcs/ha – 26.9 t/ha, 15 thousand pcs/ha – 30.2 t/ha and 20 thousand рcs/ha – 35.6 t/ha dry biomass. The application of mineral fertilizers with rate of N60P100K100 for all planting densities increased the dry biomass yield to 34.4; 38.5; 45.3 t/ha, respectively. Increase of phosphorus and potash fertilizers rate up to 200 kg a.i./ha against the background of N60 contributed to an increase of energy willow yield up to 39.9 t/ha (with a planting density of 10 thousand pcs/ha), 44.1 t/ha (15 thousand pcs/ha) and 52.3 t/ha (20 thousand pcs/ha) of dry biomass. On average for five years, the application of fertilizer with N60P200K200 rate on dark gray light loamy soil, and at planting density of 20 thousand pcs/ha provided the highest yield of solid biofuel from energy willow of 22.7 t/ha and energy of 363 GJ/ha, while on sod-podzolic cohesive-sandy soil under the same growing conditions the yield of solid biofuel from willow was less by 11.1 t/ha and energy of 178 GJ/ha. Keywords: energy willow, dry biomass, solid biofuels, energy, soil.
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