串叶松香草高产栽培技术

ON THE TECHNIQUES OF HIGH-YIELD CULTIVATION OF CUP PLANT

三年10项试验结果表明:串叶松香草的高产栽培技术应包括薄膜育苗;播种时田间持水量保持在80%左右,以当年的褐色种子浸种,播深1～2cm;育苗时间在10月上旬。大田移栽前亩施有机肥5000kg,并掺入一定的氮磷化肥;种植密度以5500～6600株为宜;在7,8月快速生长期,尤其需要及时灌水,并要求灌透。头年刈割2～3次,二年生刈割6次为好,留茬高度15cm;每次割前要施化肥,最迟一次可在11月中旬,对松香草的下年生长并无不利影响。

This paper tries to study the techniques of high-yield cultivation of Cup plant(Silphium Perfoliatum L.).The results from our experiment (three years,ten items) are showed as follows: The plastic film in gowing seedlings is used.The field capacity about 80% for sowing is maintained.The brown seed harvested in this year is used for soaking.The depth of seed sowing is controlled form 1 to 2cm.The time of growing seedtings is the first ten-day period of Oct. Before the seedlings is transplanted,the organic fertilizer of 5000 kg/Ha is supplied,and the chemical fertilizer (N and P)to some extent is also suppl- ied.The suitable density is 5500-6600 seedlings/Ha.During the fast growth of Cup plant (from Jul.to Sept.),the irrigation in time is necessary,and in order to submerge the surface of the cropland,the quantity of water must be controlled. It is suitable to cut the plant two to three times during the first year,six times during the second year.The stubble height tilizer is remained.Berfore per cutting,the use of chemical fertilizer is needful.The time of the last cutting must be the second or the third ten-day period of November,this is adventa- geous to the regrowth of Cup plant in the next year.