红玉杏幼树为什么坐果率很低答河北读者魏国胜你来信反映的问题很对，红玉否幼树期确实坐果率很低，我们的调查数字是Ｑ－０．１４％。为澄清此问题，我们先后从花期温度、降雨、肥水管理、花期喷激素、花的类型等５个方面进行了研究。据观察和调查，气候等外界环境条件对... Why is the fruit of red jade apricot seedling rate is low? Hebei readers Wei Guosheng Your letter reflects the problem is right, red jade seedling age really fruit setting rate is very low, our survey is Q-0.14%. In order to clarify this issue, we conducted five studies from five aspects: flowering temperature, rainfall, fertilizer and water management, flowering hormones, flower types. According to observations and surveys, climate and other environmental conditions ...