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- W2382483313 abstract "【Objective】The objective of this study was to identify the spatial and temporal responses of root distribution,root activities and yield in maize to soil compaction in different soils.【Method】A two-year,2007-2008,barrel-culture experiment was conducted with three soil types and two levels of soil compaction on the Experimental Farm of Henan Agricultural University.The characteristics of spatial and temporal distribution of roots,root activities and yield in maize were studied.【Result】The results showed that root morphological indexes and yield were restricted in the three selected soils under soil compaction stress.The maximum length,dry weight,volume,and activities of roots and yield were found in the fluvo-aquic soil while the minmum were observed in the yellow cinnamon soil.The total and active absorbing areas of root per plant and dehydroganase activity of root were significantly different among the three selected soils with highest in the fluvo-aquic soil,followed by the lime concretion black soil and yellow cinnamon soil.Ratio of absorbing area and ratio of active absorbing area to dry root weight were increased under soil compaction stress.With the relief of soil compaction,root morphological and physiological parameters increased significantly in all selected soils,resulting in the increase of yield.The density of root length and dry root weight were increased significantly in the 20-40 cm soil layers compared with that in 0-20 cm soil layer in the three selected soils,but the ratio of absorbing area and the ratio of active absorbing area to dry root weight were decreased with decreases of soil compaction in three soils.The changes of root parameters and yield in lime concretion black soil and yellow cinnamon soil were more sensitive than in the fluvo-aquic soil.【Conclusion】Root growth and distribution were restricted under high soil compaction.This clearly showed that plants were not passively tolerant to soil compaction stress,but actively regulated their physiological metabolic processes to reduce injury by the environment.Response of maize root soil to soil compaction stress in the three selectedl soils was closely related to soil physical properties." @default.
- W2382483313 created "2016-06-24" @default.
- W2382483313 creator A5010595690 @default.
- W2382483313 date "2011-01-01" @default.
- W2382483313 modified "2023-09-28" @default.
- W2382483313 title "Effect of Soil Compaction on Spatio-temporal Distribution and Activities in Maize Under Different Soil Types" @default.
- W2382483313 hasPublicationYear "2011" @default.
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