青岛市所辖6县(1区),盛产花生,近年来栽培面积逐渐扩大到189万亩,约占全部耕地的24.2%,居全省第三位.花生主要种植在低山、丘陵的棕壤,河流两岸的河潮土、湿潮土和小部分的砂姜黑土,肥力较差,历年施用有机肥少,土壤中硼素营养不足.从1983年起我们对花生缺硼症状,花生的硼素营养特性,土壤有效硼含量与硼肥效果的关系,以及硼肥的施用技术等进行了较全面的研究.现将结果整理如下.一、试验材料和方法三年来,采用所内与基点相结合,培养试验与小区、大区对比试验相结合,肥效试验与室内化验相结合的方法进行.1.砂培试验(1983年)以细河砂作培养砂,原始砂有效硼0.046ppm,先将各处理所需用的砂分别称好,用喷雾器喷洒含硼液,将培养砂的含硼量分别调到0.20、0.40、0.60、0.80和1.00ppm.盆钵规格为30×30厘米,总砂量为34斤,先装19斤,施入硫铵 Qingdao City, under the jurisdiction of the 6 counties (Area 1), abounds in peanuts, cultivation area in recent years gradually expanded to 1.89 million mu, accounting for 24.2% of all cultivated land, ranking third in the province peanut mainly planted in low mountains and hills brown Soil and rivers on both sides of the river fluvial soil, moist soil and a small part of the Shajiang black soil, poor fertility, application of organic fertilizer over the years less boron in soil nutrient deficiencies.We started from 1983 boron deficiency symptoms of peanut boron Nutrition characteristics, the relationship between soil available boron content and boron effect, as well as the application of boron fertilizer technology conducted a more comprehensive study.The results are summarized as follows.First, the test materials and methodsIn the past three years, Cultivation test and plot, a large area of ​​the comparative test, the combination of fertilizer test and laboratory tests.1 sand culture test (1983) with fine river sand as culture sand, the original effective boron 0.046ppm, first of all The sand required for the treatment is respectively weighed, spray the boron-containing liquid with a sprayer, and adjust the boron content of the cultured sand to 0.20, 0.40, 0.60, 0.80 and 1.00 ppm, respectively. The pot has the specifications of 30 × 30 cm, 34 pounds, first loaded 19 pounds, applied to ammonium sulfate