烤烟分次单株定量施肥技术研究

烤烟分次单株定量施肥 ,具有施肥准确、简便、有效和节肥的特点 ,集中了分次施肥和集中施肥的优点 ,加上肥料距离烟株根系较为适宜 ,可以保证得到相同的营养条件 ,该施肥技术供肥的特点是既集中又持久 ,能有效改善地膜烟前期营养供应过快而容易引起后期脱肥早衰的现象 ,保证烟株最大生长对养分的需求。采用分次单株定量施肥在烤烟移栽时最好施75kg/hm2 左右的烟草专用肥作定根肥 ,以保证烤烟前期的营养。还需要考虑到肥料的易溶性、追肥氮的形态

Study on the Technique of Quantitative Manure Application for Each Tobacco Plant

Twice applications of the quantitative manure for each tobacco plant had the exact amount, simplicity, effective and fertilizer-saving. The suitable distance between fertilizer and root system would provide same environment for tobacco plant growth and the manure value was both continuously and entirely absorbed. 75kg/hm 2 fertilizer was used for normal root growth when tobacco plants were transplanted.