目前在烟叶生产上推广使用的营养块（袋）育苗技术，具有烟苗根系发达、栽后无缓苗期、增产增收等显著效果，现已成为我国优质烤烟生产的重要技术措施之一。但由于营养块（袋）需手工制作（装土），费工费时，工效很低，因此难以普及推广。广西三江侗族自治县农技推广部门... At present, the nutrition nugget (bag) breeding technology popularized and used in tobacco production has the remarkable effect of root system of tobacco seedling, no seedling raising after seedling stage, increasing yield and income, and has become one of the important technical measures for producing high quality flue-cured tobacco in our country. However, due to the nutritional block (bag) to be hand-made (loading soil), time-consuming work, low efficiency, it is difficult to popularize promotion. Guangxi Sanjiang Autonomous County agricultural extension department ...