马店（DigitariaSanguinalis（L）Scop）是禾本科马唐属的一年生杂草唤浙江省旱粮作物田主要杂草，占杂草总数的70％以上，重草田一般可使旱粮减产30％～40％。为给防治提供科学依据，我们1990～1994年对马唐的消长规律及化学防除进行了研究，现将结果报道如下：一、材料与方法 Digitaria Sanguinalis (L) Scop is an annual weed of the gramineous Coturnian genus called the main weed in the dry farmland in Zhejiang Province, accounting for more than 70% of the total weeds. Heavy grasses generally reduce the dry grain output by 30% 40%. In order to provide a scientific basis for prevention and control, we from 1990 to 1994 on the law of the growth and decline of crab and chemical control were studied, the results reported as follows: First, materials and methods