Abstract
The following paper considers influence extent of zeolite breed of the Hotynetsky field on indicators of relevant and exchange acidity of the cespitose-podsolic sandy loamy soil in the Nizhny Novgorod Region. A three-year experiment, representing microfield experiment, was started in 2014 in the Borsky District Elitkhoz. Zeolite was brought in the plough-layer once in high doses 3, 6 and 12 t/hectare. During the research (20152017) on allotments the main crops of the region were grown up. The acidity of the soil was estimated on рН indicators, defined from water and salt extracts which were selected during the autumn period after cultural plants harvesting. As a result of the conducted researches positive action of all doses of the studied zeolite on indicators of the acid and main mode of the cespitose-podsolic soil was established. The essential effect was traced already at the minimum dose of material: 12,0% increase of рНwater indicator and 6,3% increase of рНsalt indicator on average during the research time. Application of 6 t/hectare of zeolite breed in the greatest measure promoted reduction of the relevant acidity of the soil by 20%, exchange acidity for 13% and also for 60% to increase in an ionic exchanging of the soil solution system with preservation of the action force during the research time.
Highlights
Уромова Ирина Павловна, доктор сельскохозяйственных наук, профессор кафедры биологии, химии и биолого-химического образования Нижегородский государственный педагогический университет имени Козьмы Минина
The trees growing in urban environments are exposed to the highest pressure of negative exogenous factors and, many tree species come to the critical age and become hazardous
The main parameters are: age, diameter of the base, diameter at height, trunk girth at the base, trunk girth at a height of 1,3 m, the height of the tree, the angle of inclination of the trunk, the vital status score for Saveleva, morphological damage to the trunk, the description of the crown architectonics, the presence of morphogenetic and exogenous damage to the leaf blade, the population of the trunk pests, the presence of hollows, the wind feature and the loading of this site, the mode of visiting the territory, the direction of possible fall, percentage of sound rot, modulus of elasticity of wood, density of wood, the ratio of biomass to critical mass, mechanical resistance to static and dynamic loads according to calculations on biomechanics
Summary
Уромова Ирина Павловна, доктор сельскохозяйственных наук, профессор кафедры биологии, химии и биолого-химического образования Нижегородский государственный педагогический университет имени Козьмы Минина ОЦЕНКА ИЗМЕНЕНИЯ АКТУАЛЬНОЙ И ОБМЕННОЙ КИСЛОТНОСТИ ДЕРНОВО-ПОДЗОЛИСТОЙ ЛЕГКОСУГЛИНИСТОЙ ПОЧВЫ В данной статье рассматривается степень влияния цеолитовой породы Хотынецкого месторождения на показатели актуальной и обменной кислотности дерново-подзолистой легкосуглинистой почвы Нижегородской области.
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