有機肥與硫肥平衡配施對烤煙品質(zhì)的影響
Effects of Balanced Application of Organic and Sulfur Fertilizers on Flue-cured Tobacco Quality
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摘要: 為探討有機肥與硫肥配施對烤煙品質(zhì)的最佳效果，采用正交旋轉(zhuǎn)回歸方法，以氮堿比,、糖堿比兩個主要品質(zhì)指標為依據(jù),，在此基礎上建立煙葉質(zhì)量與有機肥（菜籽餅）、硫肥（硫酸鉀）用量之間顯著相關的數(shù)學模型并進行方差分析,。通過模擬尋優(yōu),，得出優(yōu)化平衡配施最佳方案為，有機肥中低水平300～375 kg/hm2,，硫肥中水平56.25 kg/hm2,。可見,，硫肥不宜施用過多,，生產(chǎn)上不宜提倡另外追施硫肥；影響煙葉品質(zhì)的主要因子是有機肥（菜籽餅）,。Abstract: The effects of organic fertilizer(cake fertilizer) and sulfer fertilizer(K2SO4) applications on flue-cured tobacco quality were studied by using the orthogonal-gyrating regression. Basing on two quality indices (the ratio of nitrogen to nicotine, the ratio of reducing sugar to nicotine), a mathematical model was established of the significant relationship between leaf quality and the fertilization rate of organic fertilizer (rapeseed cake) and sulfer fertilizer (K2SO4). Through variance analysis and optimizing simulation, the optimum rates for balanced application were organic fertilizer at medium to low level of 300-375 kg/ha and sulfer fertilizer at medium level of 56.25 kg/ha. In conclusion, it is not appropriate to apply excess sulfer, and the main effecting factor of flue-curd tobacco quality is organic fertilizer ( rapeseed cake).
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