编辑同志: 近几年来,在不少提到有关水稻灌溉的文章上,出现了一个屡见不鲜的提法:“自然落干”,或“后水不见前水”。合理的管水方法应是间歇灌溉法,这是个较好的灌溉方法。可是按照“自然落干”的办法,却往往带来很多弊病,在实践上行不通。第一,由于土壤渗漏量小,特别是一部分通透性不好的青泥田、老水田、低洼田渗漏量更小,要“自然落干”就需要很多天,这样很容易引起稻田杂草滋生。 Editorial Comrades: In the last few years, there have been many notable references to many references to paddy irrigation: “falling naturally” or “not seeing the water after the water”. Reasonable water management method should be intermittent irrigation method, which is a better method of irrigation. However, in accordance with the “natural way” approach, it often brings a lot of drawbacks, in practice does not work. First, due to the small amount of soil leakage, especially part of the poor permeability of green muddy fields, old paddy fields, low-lying field leakage is smaller, to “natural dry” on the need for many days, it is likely to cause miscellaneous rice fields Grass breeds.