研究了稻田丝状藻类与土壤肥力的关系,经试验观察表明:当稻田丝状藻类大量生长时,与水稻争肥而引起水稻减产;若将丝状藻类掩埋在稻田里,水稻的减产比将这些藻类捞出丢掉要少些.水稻收获后播种小麦,掩埋有藻类的比将藻类捞出丢掉的产量有显著增加.综合稻麦两季的产量,发现掩埋藻类的比未埋藻类的稻田的总产量更高. The relationship between filamentous algae and soil fertility in paddy field was studied. The results showed that: when filamentous algae grew in large quantities in paddy field, the yield of rice decreased with the concentration of filiform algae in paddy field; The loss of these algae to throw away less.Seeding of rice after harvest of rice, buried algae than the algae to discard the output has increased significantly.Combining the output of rice and wheat in two seasons and found that buried algae than non-algae paddy field The total output is higher.