论文部分内容阅读
经调查发现,西洋梨“铁头”现象的发生是果实钙元素失调引起的,砧木类型、土壤有机质含量低、土壤酸化、施肥不合理、修剪不当等因素是造成果实钙元素失调的主要原因,同时提出改善土壤结构和理化性状、调整土壤p H值、合理施肥、合理负载和注意修剪等措施来预防“铁头”现象的发生。
The survey found that pears “iron ” phenomenon is caused by calcium imbalance in fruit, rootstock types, low levels of organic matter in soil, soil acidification, fertilization unreasonable, improper pruning and other factors is the main cause of calcium imbalance in the fruit At the same time, some measures to improve soil structure and physical and chemical properties, adjust p H value of soil, rationally fertilize, reasonably load and pay attention to pruning are put forward to prevent the occurrence of “iron ” phenomenon.