【摘要】 １９９６年春，结合安顺地区百万亩粮油工程内容要求和项目区镇宁自治县实况，在大山乡实施了多种叶面肥应用于玉米上的比较试验。结果表明：在玉米小喇叭口期、大喇叭口期和吐丝期辅助喷施叶面肥，能使玉米植株健壮生长，利于玉米高产果穗性状的形成，进而增产增收。增产幅度为３１４６～１０６１４ｋｇ／６６７ｍ２，其中，以自配Ｎ（３０ｇ）＋Ｐ２Ｏ５（５０ｇ）＋Ｋ２Ｏ（３１．５ｇ）＋Ｍｎ２＋（２５ｇ）＋Ｆｅ２＋（２５ｇ）＋Ｂ（１０ｇ）增产、增值效果最好。更多还原

【Abstract】 The effect of leaf surface fertilizers used in maize cultivation was carried out in 1996. By comparing the effect of different kinds of leaf surface fertilizers. It was known that the fertilizer application at elongation and silking stage could increase output of maize. The increasing range is 471.9～1592.1kg/ha. The compound fertilizer which contains 30g N, 50g P 2O 5,35.5 g K 2O,2.5g Mn 2+ ,25g Fe 2+ and 10g B.更多还原