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稻田放养固氮兰藻是解决水稻肥源的途径之一。但在农村中大量培养应用尚缺乏經验。为使固氮兰藻早日用之于生产,茲根据我们两年来在研究中所取得的初步成果,并参考有关資料,将固氮兰藻的培养及其利用方法簡单介紹如下,以供参考。一、固氮兰藻的生物学特性 (一)溫度:固氮兰藻是喜溫性的,在溫暖季节才开始繁殖。一般当水溫在20℃以上才表現較明显的生长現象;水溫在25~32℃时生长最快;水溫超过40℃以上,就
Paddy field stocking Nitrogen is one of the ways to solve the problem of fertilizer source. However, a large number of applications in rural areas are still inexperienced. For the early use of A. niloleus in the production, based on the preliminary results we obtained in the past two years and with reference to the relevant data, the cultivation and utilization of A. niloleus will be briefly introduced as follows for reference. First, the biological characteristics of nitrogen-fixing blue algae (a) temperature: blue nitrogen-blue seaweed is warm, began to reproduce in the warm season. Generally when the water temperature above 20 ℃ only showed a more obvious growth phenomenon; water temperature at 25 ~ 32 ℃ when the fastest growing; water temperature above 40 ℃, it