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在田间条件下,一般说来,严重缺硼是比较少的,但潜在性缺硼则容易被人们所忽视.本试验的目的,是探讨在土壤潜在性缺硼的情况下,根外喷施硼肥对棉花产量和经济性状的影响.材料和方法试验是在大田条件下进行.供试品种为黑山棉,当棉花现蕾后,用0.2%硼砂(Na_2B_4O_7·10H_2O)溶液(配制溶液时,先用少量40℃左右的温水将硼砂溶解,再加入凉水到所需浓度),将溶液喷洒于叶面,每15天喷洒一次,共喷两次,喷等量的清水
Under field conditions, in general, serious boron deficiency is relatively small, but the potential of boron deficiency is easily overlooked by people.The purpose of this experiment is to explore the potential boron deficiency in the soil, Effects of boron fertilizer on cotton yield and economic traits.Materials and methods were tested under field conditions.The test varieties were black mountain cotton, and when cotton was budded with 0.2% borax (Na 2 B 4 O 7 · 10H 2 O) solution First with a small amount of 40 ℃ warm water will borax dissolved, then add cold water to the desired concentration), the solution is sprayed on the foliage, spraying once every 15 days, a total of two spray, spray the same amount of water