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氨水是一种液体氮肥。自1960年我省开始在济南、昌潍、济宁等地进行肥效试验,初步肯定了对玉米、小麦等几种作物的增产效果。施用一斤氨水可以增产小麦1.085斤,玉米0.48-1.15斤,高粱1.258斤,鲜地瓜4.97斤。目前群众所用的独腿耧虽然较开沟浇施有了进步,但仍存有不少问题。如氨水耧只能用于条播作物及播前施肥,不能用于点播作物;开关不灵易流失氨水;每部需用3-5人拉,一人扶,占用劳力过多,造价高每部31元多。在施于点播作物时,群众迫不得已采用一人用棍扎眼,一人用壶浇,一人复土的办法(以下简称三人施肥法),工效很低,每人每小时施肥100-150株。而且当用壶向穴内
Ammonia is a liquid nitrogen fertilizer. Since 1960, our province began to fertilizer test in Jinan, Changwei, Jining and other places, initially affirmed the yield-increasing effect of several crops such as corn and wheat. A pound of ammonia can increase 1.085 kg of wheat, 0.48-1.15 kg of corn, 1.258 kg of sorghum, fresh sweet potato 4.97 kg. At present, although the single-legged 用 used by the masses has made more progress than ditches, many problems still exist. Such as ammonia water can only be used for sowing crops and sowing before fertilization, can not be used for on-demand crops; switch is not easy to drain ammonia; each need 3-5 people pull, one person help, take up too much labor, high cost each 31 Yuan more. When applied to on-demand crops, the masses forced to use one stick with eyes, one with pot pouring, one person to re-soil (hereinafter referred to as three fertilization), low efficiency, 100-150 per person per hour fertilization. And when using the pot to the hole