芝麻是多年生宿根作物,在我省一般年收三季,全年亩产300斤左右,然而三季产量极不平衡,头麻占50％左右,二麻占30％左右,三麻占20％左右.因此,在施肥管理上出现“重头麻,轻二麻,丢三麻”,导致“头麻收,二麻溜,三麻丢”的现象.近几年来,随着栽培技术的不断提高,出现了不少的二麻赶头麻,三麻超二麻的高产典型.如郭河区农科村1980年发展的393亩苎麻,1985年平均 Sesame is a perennial perennial crops, in our province generally received three seasons, the annual output of about 300 pounds per mu, but the three seasons yield is very uneven, head and about 50% of the two maize accounted for about 30%, three Ma accounted for about 20%. As a result, there appeared the phenomenon of “reckoning the first hemp, the second hemp, and the third throne” in the fertilization management, resulting in the phenomenon of " A lot of two marijuana Ma, three Ma super marijuana high yield typical .Agricultural village of Guohe District in 1980 to develop 393 acres of ramie, in 1985 the average