【摘要】 施用不同的有机肥 ,对降低烤烟中部叶片硝态氮含量有一定作用 ,但上部叶的硝态氮含量有所提高。比较而言 ,以施用腐熟草粪的处理烟叶硝态氮含量最低 ,其次是施用桐油枯 ,烟叶硝态氮含量最高的处理是施用鸡粪 +桐油枯。更多还原

【Abstract】 Nitrate and nitrite contents could be decreased for middle but increased for uppers in flue cured tobacco leaves by applying different organic manures.Comparison among different treatments indicated that it was the lowest for the nitrate and nitrogen content by applying fully fermented plant manure,followed by applying tung oil cake,and the highest by applying chicken droppings with tung oil cake.更多还原