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眼子菜(Potamogeton cristatus)是我国南北各地稻田中的多年生恶性杂草,对水稻的危害极为严重,可使水稻减产50%—70%,严重的甚至全无收成。它还可侵入河道、池塘,阻塞水渠,对交通运输、养鱼、排灌等都带来不良影响。(1971—1972年,我们在总结各地群众经验的基础上,在北京郊区洼里公社进行了眼子菜化学防除的大田试验,并对其形态分化及与水稻生长发育的关系方面也进行了较为系统的观察,以期为今后进一步研究水田多年生杂草的生长发育规律和制订合理的农田化学除草措施提供参考。
Potamogeton cristatus is a perennial malignant weed in paddy field in north and south of our country. It is extremely harmful to rice and can reduce the yield of rice by 50% -70%, even without any harvest. It can also invade rivers, ponds and obstruct aqueduct and adversely affect transportation, fish culture and irrigation. (From 1971 to 1972, on the basis of summing up the experiences of the masses in various places, we carried out field experiments on the chemical control of Eichhornia crassipes in the Wali commune in the suburbs of Beijing. We also compared the morphological differentiation and the relationship with the growth and development of rice Systematic observation, with a view to provide reference for further study on the law of growth and development of perennial weeds in paddy field and to formulate a reasonable chemical weed control measures.