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Effects of Transplanting Nutrient Soil on Growth and Dry Matter Accumulation of Tobacco Seedlings 被引量:6
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作者 黄杰 杨爽 +5 位作者 张德利 李海林 邓小华 徐文兵 齐永杰 吴峰 《Agricultural Science & Technology》 CAS 2017年第9期1666-1670,共5页
In order to select the suitable soil for transplanting tobacco in Hunan to- bacco growing areas, pot experiment was conducted to study the effects of different transplanting nutdent soils on the growth and dry matter ... In order to select the suitable soil for transplanting tobacco in Hunan to- bacco growing areas, pot experiment was conducted to study the effects of different transplanting nutdent soils on the growth and dry matter accumulation of tobacco. The results indicated that the treatments of transplanting with nutrition soils were better than the control group. For the underground part, transplanting nutrient soil could effectively improve the root activity of tobacco plants, and increase root volume, root surface area, total root length, as well as the number of root tips and the number of root branches. For the aboveground part, transplanting nutrient soil could remarkably improve the plant height, stem girth, leaf number and maximum leaf area, and could simultaneously significantly increase the dry matter accumulation. By comparison, peat + mushroom residue + saw dust + straw powder + bicchar + root promoting nutrient solution was the most effective treatment, and the effect of sole application of nutrient solution was limited. In conclusion, transplanting with nutrition soil could effectively promote the growth and dry matter accumulation of tobacco. 展开更多
关键词 flue-cured tobacco Transplanting nutdent soil GROWTH dry matter accumulation
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Effects of Soil pH on Growth and Dry Matter Accumulation of Tobacco Plants 被引量:9
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作者 侯壮伟 周斌 +3 位作者 杨洁敏 邓小华 田峰 张明发 《Agricultural Science & Technology》 CAS 2017年第8期1443-1447,共5页
In order to clarify the relationships between soil pH and flue-cured tobacco growth and dry matter accumulation, effects of soil pH on root morphology and vigor, aboveground agronomic traits and dry matter accumulatio... In order to clarify the relationships between soil pH and flue-cured tobacco growth and dry matter accumulation, effects of soil pH on root morphology and vigor, aboveground agronomic traits and dry matter accumulation of flue-cured tobacco were investigated by pot experiment. The results showed that on the whole, the intensity of soil pH on flue-cured tobacco growth and dry matter accumulation ranked as pH=6's 〉 pH=7's 〉 pH=5's 〉 pH=4's 〉 pH=8's. Acidic soil (pH=4) was not conducive to the early growth of tobacco plants, reduced root vigor and affected dry matter accumulation; and alkaline soil (pH=8) was not conducive to the growth of tobacco roots and shoot, reduced root vigor and affected dry matter accumulation. In conclusion, the suitable pH of soil for growth of flue-cured tobacco in Xiangxi is 5-7, but weakly acidic soil is the best. 展开更多
关键词 flue-cured tobacco Soil pH Root growth Agronomic traits dry matteraccumulation
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