麦田打洞穴施化肥,是施肥技术上的一项改革。我县从1973年开始试验,1974—1975年大面积推广,增产效果显著。(一)穴施的方法。穴施时,先将细木棍(或树枝)顶端削尖,用它在麦田里戳一个个直径0.8—1寸的小洞,然后用小蚌壳或其他工具将大约1克左右的化肥挑入小洞里,再用脚踢土将洞口盖好。去年,我县试制成颗粒碳酸氢铵,施用起来很方便,每洞投放一粒颗粒肥(约0.9克)。水肥穴施时,先用少量的化肥在水里溶化,放在茶壶内,然后浇施于洞内。(二)穴施的密度。一般打洞 Cattle field hole fertilizer application of fertilizer is a technical reform. My county started the experiment from 1973, 1974 - 1975 large-scale promotion, increase yield is remarkable. (A) method of applying points. At the point of application, the top of a thin wooden stick (or branch) is sharpened, and a small hole with a diameter of 0.8-1 inch is punctured with it in the wheat field. Then a small clam shell or other tool is used to pick about 1 gram of chemical fertilizer Into the hole, and then kick the soil cover the hole. Last year, my county trial made particles of ammonium bicarbonate, it is very convenient to use, put a hole in each hole fertilizer (about 0.9 grams). Water and fertilizer points Shi Shi, the first with a small amount of fertilizer dissolved in water, on the teapot, and then poured in the cave. (B) points Shi density. General hole