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在1980年6—9月和1980年10月一1981年2月研究了满江红对水稻产量的影响。试验按随机区组设计,10个处理,3次重复测定了不同水平氮(N)和氮加满江红的效果。磷(P_2O_5)、钾(K_(20))按50-50公斤/公倾作基肥等量施用。行窝距20×10公分。满江红在两季都有助于产量的提高(表1。在第一季,使用N50公斤/公倾+满江红的产量等于使用N75公斤/公倾的产量。在第二季,使用N25公斤/公倾+满江红和使用N50公斤/公倾表现类似趋势。在1981年2-4月作了一个为查明满江红繁殖率的观察试验,用5次重复测验了满江
The effects of Azolla on rice yield were studied in June-September 1980 and October 1980-February 1981. According to the randomized block design, 10 treatments and 3 replicates were used to test the effects of different levels of nitrogen (N) and nitrogen plus Manjiangjiang. Phosphorus (P 2 O 5) and potassium (K 20) were applied as 50-50 kg / Row spacing 20 × 10 cm. Azolla will contribute to increased production in both seasons (Table 1) The use of N50 kg / hectare + Azolla equals the production of N75 kg / hectare in the first quarter and N25 kg / Tilting + Azolla and using N50 kg / hectare showed a similar trend. In February-April 1981, an observation test was conducted to ascertain the reproductive rate of Azolla. Five replicates were used to test Manchurian