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研究表明,扁秆藨草生育节律明显,有性繁殖对季节要求严,无性繁殖对季节要求宽,在“半遮光”条件下不能抽穗结实,无性繁殖受到抑制。扁秆藨草的阶段发育与叶龄相关显著,用主茎叶龄预测再生苗的线性回归方程式:(?)_α=-36.74+6.24x(1983)和(?)_α=-32.42+6.28x(1984年);预测块茎发生量的线性回归方程式:(?)_t=-67.97+10.12x(1983年)和(?)_t=-33.91+80.4x(1984年)。机械和人工除草可抑制块茎的形成和阻止抽穗结实,但能促进再生苗的蔓延。大田防治必须在扁秆藨草块茎形成之前用药,并做到株株受药,才能起到“斩草除根”的作用。扁秆藨草的发生分布与耕作栽培制度关系密切,实生苗萌发迟而集中,再生苗萌发早而分散,是防除的主要对象。实验表明,只有运用农业、生物、化学等综合防治手段,才能有效地控制扁秆藨草的为害。
Studies have shown that the flat rickety birth rhythm obvious, sexual reproduction of the season demanding, asexual reproduction of the season wide, under the conditions of “semi-shading” can not be erect, clonal reproduction is inhibited. The linear regression equation for the prediction of regenerated shoots was based on the main stems and leaf ages: (?) _ Α = -36.74 + 6.24x (1983) and (?) _ Α = -32.42 + 6.28x (1984); Linear regression equation for predicting tuber yield: (?) _t = -67.97 + 10.12x (1983) and (?) _t = -33.91 + 80.4x (1984). Mechanical and artificial weeding can inhibit the formation of tubers and prevent the heading of strong, but can promote the spread of regenerative plants. Field prevention and control must be flat tuberous tubers before the formation of medication, and strains of plants to do, in order to play the role of “cut grass and remove roots.” The occurrence and distribution of flat stalk hay are closely related to the cultivation and cultivation system. The germination of seedlings is delayed and concentrated, and the early germination of regenerated seedlings disperses, which is the main target of control. Experiments show that only through the use of agriculture, biology, chemistry and other integrated control measures, we can effectively control the flat barb grass damage.