紫色土地区不同直播造林模式造林效果研究

The afforestation effects in purple soil area by different direct seeding afforestation model

为研究紫色土地区不同直播造林模式的造林效果,以栾树种子为试验材料,于祁东县紫色土地区进行直播造林试验。结果显示:紫色土地区直播造林用栾树种子的最佳处理方法是以“种子+黄心土+菌棒废料+泥炭土+滑石粉”的包衣处理方法,其种子发芽率和苗木保存率与对照(CK)相比分别提高了20%和50%;紫色土地区最佳造林时间为2月,最好的直播造林模式为包衣种子+沟播,其种子发芽率、苗木保存率最高,苗木生长量最大。

In order to study the afforestation effects in purple soil areas by different direct seeding afforestation model,the experiments were carried out in purple soil areas of Qidong County with Koelreuteria paniculata seed as experimental material.The results showed that the best treatment method for seeds used for direct seeding forestation in purple soil area was the coating treatment method of"seed+yellow heart soil+fungus stick waste+peat soil+talc powder",and the seed germination rate and storage rate were increased 20%and 50%respectively compared with CK.The best time for afforestation in purple soil was in February,and the ideal direct seeding afforestation mode was seed coating+ditch sowing,with the highest seed germination rate,seedling storage rate and seedling growth rate.