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Evaluation of Aquatic Animals on the Water in a Rice Field with No-tillage Rice Cover Crop Cropping Systems
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 Title & Authors
Evaluation of Aquatic Animals on the Water in a Rice Field with No-tillage Rice Cover Crop Cropping Systems
Lee, Young-Han; Sonn, Yeon-Kyu;
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The objectives of the present study evaluated aquatic animals on the water in a rice field. Field investigation was carried out in conventional tillage without rice straw or green manure crop treatment (CTFS, check plot), no-tillage without cover crops (NTNT), no-tillage amended with rape (NTRA), no-tillage amended with rye (NTRY), no-tillage amended with hairyvetch (NTHV), and no-tillage amended with Chinese milk vetch (NTCM). Total dense population of aquatic animals in HTHV was significantly higher than the other plots (p<0.05) on May 30. Dense populations of Daphniidae and Culicidae on June 20 were lowest in CTFS compared to no-tillage plots (p<0.05). Furthermore, in principal component analysis (PCA), PC1 explained 44.9% of variance, whereas PC2 explained 26%, for a cumulative total of 70.9% and the PC1 of the PCA separated the samples from NT treatments and CFS (p<0.05).
No-till;Microfauna;Paddy;Organic farming;Cover crop;
 Cited by
무경운 벼 유기농업이 토양 미생물 생태에 미치는 영향,이영한;안병구;곽연식;

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