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Повышение плодородия почв лесного питомника «Ак кайын» Республики казахстан

Повышение плодородия почв лесного питомника «Ак кайын» Республики казахстан

Abstract

The article analyzes the mechanical and physical and chemical properties of soils in the forest nursery “Ak kayyn” of the Republic of Kazakhstan. It was established that dark chestnut saline soils occupy 25 % of nursery territory. To grow the planting stock on these soils with modern agrotechnics is rather problematic even with the use of mineral fertilizers. The cause of low suitability of dark chestnut saline soils is ability to form crust. Cracks are formed in dry seasons as a result of shrinkage. These cracks are filled with surface horizon substances. When the soil is moistened the cracks are compressed and “excess material” in the lower part of the profile creates pressure causing displacement of soil blocks, and forming a sliding surface and microrelief “chillegay”. As a result of these instigations it was established that introduction of ameliorants can ensure the elimination of soil crust on dark chestnut soils. Optimum results during model experiments were obtained with simultaneous application of phosphogypsum and ash on the basis of

Проанализированы механические и физико-химические свойства почв лесного питомника «Ак кайын» Республики Казахстан. Установлено, что 25 % территории питомника занимают темно-каштановые солонцеватые почвы, выращивание посадочного материала на которых при современной агротехнике проблематично даже при условии применения минеральных удобрений. Причиной низкой лесопригодности темно-каштановых солонцеватых слитных почв является коркообразование. В сухие сезоны в результате усадки образуются трещины, которые заполняются материалом поверхностных горизонтов. При увлажнении почвы, трещины сжимаются и «лишний материал» в нижней части профиля создает давление, вызывая смещение блоков почвы и образуя поверхности скольжения и микрорельеф «чиллегай». В процессе исследований установлено, что ликвидацию почвенной корки на темно-каштановых слитных почвах можно обеспечить внесением мелиорантов. Оптимальные результаты при проведении модельных опытов были получены при совместном внесении фосфогипса и золы из расчета 20 и 10 т/га, соответственно.

Keywords

ТЕМНО-КАШТАНОВЫЕ ПОЧВЫ, СОДОВО-ЗАСОЛЕННЫЕ СОЛОНЦЫ, МЕЛИОРАЦИЯ, МЕЛИОРАНТЫ ФОСФОГИПС И ЗОЛЬНЫЕ ОТХОДЫ ТЭЦ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold