水稻丰产栽培中出現的倒伏,往往由于栽培措施不当所引起,其中尤以肥、水、密、种等关系更为密切。三年来,我們从这些方面进行了試驗研究,現将結果討論于后: 一施肥与倒伏的关系据报道,过量的氮肥是引起 The lodging in high-yielding rice cultivation is often caused by improper cultivation measures, especially in the relations among fertilizers, water, dense plants and so on. In the past three years, we have conducted pilot studies in these fields. We will now discuss the results of the study. The relationship between fertilization and lodging It has been reported that excess nitrogen fertilizer is responsible for