利用高粱再生能力强的特点,一种三收,能多快好省地提高单位面积产量,省工、省种、早熟、高产,并能多次发挥杂交种的杂交优势。去年我所高粱一种三收,品种为忻杂七号,面积2亩,第一造845.5斤,第二造506斤,第三造616.5斤,年产1968.0斤。(一)前造的管理和收获 Utilizing the characteristics of strong regeneration ability of sorghum, one kind of three harvests can increase the output per unit area more quickly and economically, save labor, save the species, produce precocious puberty and produce high yield, and can give full play to the hybrid advantages of the hybrids. Last year, my sorghum three harvest, the variety of Xin Miscellaneous VII, an area of ​​2 acres, the first made 845.5 pounds, the second made 506 pounds, the third made 616.5 pounds, with an annual output of 1968.0 pounds. (A) before the management and harvest