不同基因型饲用甜菜生长动态研究

为解决畜草失衡,机械化、规模化发展饲用甜菜提供理论依据。对5个不同基因型饲用甜菜品种生长指标及根体产量和锤度进行动态研究,并对根体产量和锤度与8个主要指标进行灰色相关度分析。结果表明：叶柄厚度和产量是影响锤度的主导因素；株高和幼苗百株重是饲用甜菜产量的主导因素；叶片数作为饲用甜菜一项重要指标,他不仅影响根体锤度,也影响根体的产量。多倍体品种在改良饲用甜菜苗期抗逆性和提高根体含糖量过程中有很高的利用价值。‘饲用3号’综合指标表现较为突出,并且产量在参试品种中位居第一(12034.56 kg/亩),具有很高的推广价值。

The Growth Dynamics of Fodder Beet of Different Genotypes

We designed a southern plastic film recovery machine aiming at the difficulty of separation of soil and film and meeting the agronomic requirements in southern area. Considering the working principle of the machine, we carried out the single factor test and multi-factor orthogonal test for three factors which affect the performance of film and soil separation, i.e. the lifting angle of pricking components, the moving speed of the machine and the elongation of used film. The results show that the lifting angle of the pricking components has a significant effect on the soil film separation performance of the used film recovery machine. When the lifting angle of the film pricking parts is 35 degrees, the moving speed of the machine is 5 km/h, and the elongation of used film is set to 30%, plastic film recovery rate is above 95% and the entrained soil quality is below 0.50 kg/m. This machine conforms to the operation conditions in southern area, overcomes the difficulty of separating used film from soil, and meets the requirements of residual film recovery.