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果树生长发育,除需要氮、磷、钾、钙、镁、硫等元素外,还需硼、锌、铜、铁、钼等微量元素,才能生长发育良好,产量品质提高。否则,就会由缺素而引起生理病害。因此,必需给果树追施微量元素。通常施用微量元素的方法,为根部追施与根外喷施,花工、花肥较多。现采用“瓶施微量元素”方法,方法是在离树干1.5米处四围四个对角线位置上埋下广口瓶各一个,瓶内装微量元素溶液,其配比是:每1,000毫升水中,加入氧化锰1.8毫克,硼酸2.8毫克,氯化锌0.2毫克,硫酸铜0.5毫克,钼酸铵1毫克,氯化铁0.4毫克。埋瓶时,每处挖出粗0.3厘米、长40厘米的细根3条插入瓶内,瓶口上复盖瓦片、乱草。再用泥土埋好。间隔一段时间,进行检查,可加药液或调换药液,瓶内树根如坯死,可换新根,此种施肥方法,效果很好,可以省工、省肥。
In addition to nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and other elements, fruit trees need boron, zinc, copper, iron, molybdenum and other trace elements to grow and develop well and yield and quality increase. Otherwise, it will be caused by lack of physical illness. Therefore, must trace the trace elements to the fruit tree. The usual method of applying trace elements, root topdressing and root spray, flower workers, fertilizer more. Is the use of “bottles of trace elements,” the method is in the tree trunk 1.5 meters around the four diagonal locations planted a bottle, the bottle containing trace elements solution, the ratio is: every 1,000 ml of water, 1.8 mg of manganese oxide, 2.8 mg of boric acid, 0.2 mg of zinc chloride, 0.5 mg of copper sulfate, 1 mg of ammonium molybdate and 0.4 mg of ferric chloride were added. Buried bottles, each excavated 0.3 cm thick, 40 cm long fine root inserted into the bottle 3, the bottle on the cover tiles, random grass. Buried soil again. Interval of a period of time, check, can add liquid or exchange liquid, the bottle root die such as bilge, you can change the new root, this method of fertilization, the effect is good, you can save time, save fertilizer.