不同营养软盘与播种深度对甜玉米育苗效果的影响

Influence of nutrition plate and sowing depth on the growth of sweet corn seedling

为了解决甜玉米出苗质量差的问题，分别选用孔穴数为54、70、100、128等4种营养软盘和3／3、2／3、1／2、1／3、0／3等5种播种深度，探讨不同育苗营养软盘与播种深度对甜玉米幼苗特性的影响。结果表明，不同的营养软盘与播种深度育苗对甜玉米苗期的出苗率、出苗时间、幼苗整齐度和壮苗指数均有一定的影响，甜玉米育苗宜选用100孔软盘与l，3播种深度，以3～3．39叶龄期起苗移栽为宜。

In order to improve the quality of sweet corn seedling, effects of different nutrition plates and sowing depth on the growth of sweet corn seedling were discussed, by designing 4 kinds of nutrition plates with 54, 70, 100, 128 holes respectively and 5 kinds of sowing depths with 3/3, 2/3, 1/2, 1/3 and 0/3 respectively. The result showed that different nutrition plate and sowing depth both had effect on emergence rate, emergence time, emergence uniformity and seedling index of tile sweet corn. The optimal choice was a combination of nutrition plates with 100 holes and 1/3 sowing depth, and the best time for transplamation was 3-3.39 of leaf age.