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试验结果表明,春播高粱制种,利用覆膜栽培,制种产量可提高20.63%,成熟期提早15d,较露地栽培多收入(净值)204.77元/667m~2,每投入1.00元地膜可增值 6.83元。
The results showed that the yield and yield of sorghum in spring could be increased by 20.63% and 15 days respectively, compared with the open field cultivation of 204.77 yuan / 667m ~ 2, and the film yield increased by 6.83 yuan.