近年来,水稻稀植已成为一种高产栽培模式,有关稀植高产的论述颇多,如沈阳市水稻高产高效栽培模式的探讨。但大多是从那种密度增产方面论述,关于稀植后栽培群体的光合结构谈及不多,本文就水稻稀植或超稀植后的光合结构的调节问题进行初步探讨。 In recent years, rice thinning has become a high-yielding cultivation mode. There are many expositions on rare-cropping and high-yielding, such as the discussion of high-yield and high-yielding rice cultivation mode in Shenyang. However, most of them are discussed from the perspective of the increase of density. There are few talked about the photosynthetic structure of the cultivated population after sparse planting. In this paper, the regulation of photosynthetic structure after sparse planting or ultra-thin planting of rice is discussed.