煙區(qū)土壤改良技術(shù)措施研究
Studies on Techniques for Soil Improvement in Sanming TobaccoPlantingArea
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摘要: 本試驗(yàn)對(duì)三明煙區(qū)土壤改良技術(shù)進(jìn)行了研究,。三年定點(diǎn)試驗(yàn)結(jié)果表明:種植大麥和稻草還田改良土壤的效果優(yōu)于其它處理和對(duì)照,有助于協(xié)調(diào)土壤養(yǎng)分的平衡供給和改善土壤結(jié)構(gòu),其中稻草還田對(duì)土壤結(jié)構(gòu)的改善效果最為顯著;通過(guò)兩年施肥量的調(diào)整,消除了不同處理對(duì)施肥水平的影響,在保證各處理煙株長(zhǎng)勢(shì)均衡, 煙堿含量較為理想的前提下進(jìn)行比較,種植大麥和稻草還田的處理,煙株采烤結(jié)束后根量大于其它處理及對(duì)照,烤后煙葉均價(jià),、上等煙比例和產(chǎn)值明顯高于其它處理及對(duì)照; 稻草還田處理煙株青枯病發(fā)病率低于對(duì)照。種植大麥能顯著減輕煙草青枯病的危害,且在種植當(dāng)年就表現(xiàn)出了一定的效果,煙株生長(zhǎng)后期的耐熟性明顯提高,。Abstract: The studies were conducted on the technologymeasures for improvingthe soil in Sanmingtobacco planting area. The results showed that the treatments of planting barley and returning rice strawto field had better effects on improving soil than the control and other treatments. These two treatments were helpful to coordinate the soil nutrient balancing of supply and demand,and improve the soil composition. The effect of returning rice strawto field had the most significant effect on improving the soil composition. The effects were avoided on the different treatments tofertilizer level byregulatingthe amount offertilizer, and on the premise ofinsuring the tobacco plants growth state identical and better nicotine content of flue-cured tobacco, the biomass of tobacco roots, the average price oftobacco leaves, the high quality leaf proportion, and production value of planting barleyand returningrice strawto field were all significantly higher than the control and other treatments by the end oftobacco leaves harvest. On the tobacco bacterial disease, the treatment of returning rice strawto field reduced the disease percentage, while the treatment of planting barley significantly reduced the disease percentage at that year, and improved the maturation tolerance in the later growth stage.
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