小董公社那道大队茶场过去在使用碳酸氢铵时,采取开沟干施后盖土,结果发现施后茶树老叶浓绿,但发芽少。大队茶场的社员遵照毛主席“实践、认识,再实践、再认识”的伟大教导,改用以碳酸氢铵加水喷施(即根外追肥),他们的做法是:用碳酸氢铵3—4市两,兑水40市斤,充分搅均后,用楣壳或喷雾器向茶叶枝叶喷洒至湿匀,喷 Small commune that Road Brigade Tea House in the past, the use of ammonium bicarbonate, trenching dry soil after taking cover, found that tea leaves after the old dark green, but less germination. Members of the brigade’s tea plantation followed the great teachings of Chairman Mao’s practice, knowledge, practice and re-understanding and switched to using ammonium bicarbonate and water (ie, top-dressing). Their practice was to use ammonium bicarbonate 3-4 City two, watered 40 jin pounds, after full mixing, using the header frame or sprayer to spray tea leaves to wet uniform, spray