施用硼、磷对萝卜发生赤心症的影响王金旺，吕秀荣译（河南省开封市蔬菜研究所）笔者在前报中已阐明萝卜膨大根内部变褐的赤心定在生长后期温度高的情况下容易发生。而赤心症发生的实际情况则是由于农田不同，即是同一农田因地块不同而有差异。特别黑火山灰土上层深厚的地... Effect of Boron and Phosphorus on Chronic Heart Disease in Radish Wang Jinwang and Lu Xiuerong The author has reported in previous reports that the redness of browning inside the radish enlargement root is likely to occur when the temperature is high at the later growth stage . The actual situation of the incidence of red heart disease is due to different farmland, that is, the same farmland varies due to different plots. In particular, the volcanic ash and ash top deep ...