菜籽饼肥不同用量对烤烟产量及质量的影响

试验研究了菜籽饼肥不同用量对烤烟产量和质量的影响。结果表明,施25%熟饼肥 75%复合肥的处理烤烟产量、产值最高,在施用饼肥纯N占25%以上时,随着饼肥用量的增加,烤烟产量、产值呈下降态势。饼肥用量相同时,腐熟饼肥产量、产值高于生饼肥。25%熟饼肥 75%复合肥处理的烟叶内在化学品质协调性较好,单施复合肥或单施菜籽饼肥(包括生饼和熟饼肥)都不利于烟叶内在化学品质的协调。

Effect of application rates of rape seed cake on yield and quality of flue -cured tobacco

An experiment was conducted to study the effect of application rate of rape seed cake on yield and quality of flue-cured tobacco.The results show that output yield and value of flue-cured tobacco are highest at 25% N from rape seed cake and 75% N from compound fertilizer.However,output yield and value of flue-cured tobacco decrease when N application rate from rape seed cake is above 25% of total applied N.With the same application amount,output yield and value of fluecured tobacco in rotten rape seed cake treatment are higher than those in unprocessed rape seed cake.It is also observed that flue-cured tobacco leaf chemical quality balances well at 25% rotten rape seed cake,plus 75% compound fertilizer treatments.At 100% rape seed cake(rotten or unprocessed rape seed cake) or 100% chemical fertilizer treatment,flue-cured tobacco leaf chemical quality becomes very unbalanced.