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柽麻是一种肥效较高、出苗快、生长迅速、耐旱,耐瘠适用于多种农作物的轮间套种的夏绿肥。为了充分发挥其增产潜力,一年来,我们对其根瘤固氮、水分生理和养分积累进行了研究和观察。根瘤固氮在未种过豆科植物的沙薄土壤上播种柽麻,当幼苗长出第一片真叶、刚出现第二片真叶尖时,主根上的根瘤开始膨大到小米粒那么大;出苗后10天左右,主根上有4—6个根瘤,在侧根上有2—3个根瘤;出苗20天主根上有21—25个根瘤、侧根上有18—22个根瘤;出苗后30天,侧根上根瘤数远远超
Cannabis is a summer fertilizer with high fertilizer efficiency, rapid emergence, rapid growth, drought tolerance and barrenness suitable for inter-round interplanting of various crops. In order to give full play to its yield potential, in the past year, we conducted a study and observation on its nodule nitrogen fixation, water physiology and nutrient accumulation. Nodule nitrogen fixation in the thin layer of soil not planted legume flax, when the seedlings grow the first true leaves, just appeared the second true tip, the root nodules began to expand to the size of a large grain of rice; About 10 days after emergence, there are 4-6 root nodules on the main root and 2-3 root nodules on the lateral roots. There are 21-25 nodules on the main root on the 20 days after emergence and 18-22 nodules on the lateral roots. After emergence for 30 days, The number of lateral root nodules far exceeds