Effect of soil acidity and nitrogen fertilization on the growth and yield of barley cultivars
1988
Shim, J.W. | Lee, H.S. | Choi, K.J. (Seoul National Univ., Suwon (Korea R.). Coll. of Agriculture)
The effects of pH and aluminum treatment on the seedling growth were examined with 11 cultivars under three levels of pH in nutri-culture. Growth and yield responses of soil pH and nitrogen fertilization were also studied with five cultivars under 3 levels of soil pH and 3 levels of nitrogen application in the field experiment. The effect of pH on the seedling growth was not significant, but aluminum treatment significantly decreased the seedling growth in nutri-culture except Dusan 12. Chlorophyll contents of leaves, dry weight of plants, culm length, spike numbers per unit area, grain number per spike, grain weight, and yield decreased with the decrease of soil pH, and thus highly significant correlation between soil pH during barley growth and yield was observed in all cultivars examined. The stable cultivars to different soil pH with high yield was not found although the decreases of yield were different with cultivars. The increase of nitrogen fertilization significantly increased the nitrogen and chlorophyll contents of leaves, and dry weight of plants, but showed little effects on the culm length, spike number per unit area, grain number per spike, grain weight and yield. The yield was significantly correlated with culm length, dry weight of plants, grain numbers per spike and 1000 grain weight at each pH level
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