崇明种薄荷原来是一年收二刀,头刀(第一茬)在“小暑”以后收,留下老根再长茎叶,“霜降”前收第二刀(二茬)。头刀薄荷生长期长,长势旺,比二刀产量高63％以上。我们于1975年开始试验二刀改一刀的栽培方法,并于1976年全面推广。五年来的生产实践证明,增产效果显著。 (一)油粮高产,收入增加。1976～1980年,平均每亩产薄荷油7.89斤,比改革前每亩多收2.51斤,增产46.56％,平均亩产值增加66％,年产值增了八成。这种改革也有利粮食增产,可以将多种的二茬薄荷田改种后季稻,每亩多收粮食150斤左右。 Chongming mint originally received two knives a year, the first knife (first stubble) in the “summer” later collection, leaving the root and then longer stems and leaves, “frost down,” before the second harvest knife (two stubble). Dauntless peppermint growth period, growing Wang, more than two knife production more than 63%. We started experimenting with a two-knife and one-knife cultivation method in 1975 and was fully promoted in 1976. Five years of production practice has proved that a significant increase in yield. (I) High oil yield and income increase. From 1976 to 1980, the average yield of mint oil per acre was 7.89 kg, up by 2.51 kg more than that before the reform, an increase of 46.56%. The average output value of mu increased by 66% and the annual output value increased by 80%. This reform is also conducive to increasing grain output, can be a variety of two crop menthol alters after the change of rice, more than 150 pounds per acre received grain.