КАЛИЙНЫЙ СТАТУС РАСТЕНИЙ В СВЯЗИ С ЭКОЛОГО-АГРОХИМИЧЕСКОЙ И ГЕНОТИПИЧЕСКОЙ СПЕЦИФИКОЙ МИНЕРАЛЬНОГО ПИТАНИЯ
The authors justify and develop a conceptual model of plant potassium status under intensification of production process. Their studies, as well as other research, showed that potassium uptake by vegetative wheat phytomass, grown on ten different soil types in four climatic zones, namely taiga, sub-...
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| Format: | Text |
| Language: | English |
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ПРОБЛЕМЫ АГРОХИМИИ И ЭКОЛОГИИ
2019
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| Online Access: | https://dx.doi.org/10.26178/ae.2019.82.11.006 http://agroproblem.soil.msu.ru/images/19-4/19-4-08.pdf |
| Summary: | The authors justify and develop a conceptual model of plant potassium status under intensification of production process. Their studies, as well as other research, showed that potassium uptake by vegetative wheat phytomass, grown on ten different soil types in four climatic zones, namely taiga, sub-taiga, forest-steppe and steppe, changed 5 times, whereas the uptake by wheat grain changed only 1.5 times. Potassium content in the marketable yield of different crops, i.e. sunflower, wheat and cabbage, differed 3-fold. Addition of plant residues with high C:N ratio resulted in increased potassium uptake by wheat. In seeds of most of the peas cultivars and mutants the influence of the lead (Pb) addition into the agrocoenoses resulted in relatively stable and similar potassium content (ca.10 2 mg per plant), the difference between the peas genotypes ranging 6-fold. In general the potassium status of plants was found to be unstable due to changing environmental, biological and agrochemical conditions. : The authors justify and develop a conceptual model of plant potassium status under intensification of production process. Their studies, as well as other research, showed that potassium uptake by vegetative wheat phytomass, grown on ten different soil types in four climatic zones, namely taiga, sub-taiga, forest-steppe and steppe, changed 5 times, whereas the uptake by wheat grain changed only 1.5 times. Potassium content in the marketable yield of different crops, i.e. sunflower, wheat and cabbage, differed 3-fold. Addition of plant residues with high C:N ratio resulted in increased potassium uptake by wheat. In seeds of most of the peas cultivars and mutants the influence of the lead (Pb) addition into the agrocoenoses resulted in relatively stable and similar potassium content (ca.10 2 mg per plant), the difference between the peas genotypes ranging 6-fold. In general the potassium status of plants was found to be unstable due to changing environmental, biological and agrochemical conditions. : Обосновывается и развивается концептуальная модель формирования калийного статуса растений при интенсификации продукционного процесса. Показано, что вынос калия вегетативной массой пшеницы, выращиваемой на 10 типах почв, охватывающих 4 природные зоны (таежная, подтаежная, лесостепная, степная), изменялся в пять раз, зерном всего в 1,5 раза. Содержание калия в товарной продукции разных культур (подсолнечник, пшеница и капуста) отличается примерно в 3 раза. Внесение растительных остатков с широким отношением С : N вызывало у зерновых культур увеличение выноса калия в 2 раза. В семенах большинства сортов и мутантов гороха при воздействии свинца на фитоценоз отмечалась относительно стабильное содержание калия (102 мг на 1 растение), различия между генотипами этой культуры достигали 6 раз. В целом калийный статус растений нестабилен, он обусловлен меняющимися природными, биологическими и эколого-агрохимическими условиями. : №4 (2020) |
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