荸荠大田分蘖期割除母株技术是一项荸荠栽培新技术,已在浙江荸荠产区推广应用,具体方法为:待移栽后的大田荸荠母株平均分蘖苗达到6～7株时,用镰刀从土表下1～5 cm处的基部割去母株地上部全部叶状茎,并收集转移到田外销毁.与常规栽培的不割除母株相比,割除母株处理的荸荠秆枯病病秆率降低4.6～7.4个百分点、病情指数减少2.2 ～ 3.9;无效分蘖减少2.3 ～ 7.5株·m-2,田间叶状茎生长较整齐;单位面积球茎数增加17.0～ 25.2粒·m-2,增产15.5％～20.9％.荸荠分蘖期割除母株是一项降低病原菌基数,减少秆枯病病菌感染,拓展球茎生长空间,提高产量,操作简易而行之有效的创新技术.%The mother-plant-cutting technology (MPC) applied during chufa tillering stage in fields have been applied and extended in chufa producing areas in Zhejiang Province.The detailed procedure is when the tiller number reached 6-7 plants,cut all leafy stems of mother plant above the ground by a sickle digging into 1-5 cm under the soil surface.The cut debris was moved out from the fields.Compared with the mother-plant uncut plant,the stem blight rate of mother-plant-cutting plant was reduced by 4.6-7.4 percentage point,and the disease index (DI) was reduced by 2.2-3.9.The number of inefficient tiller decreased by 2.3-7.5 plant per m2.Besides,the yield was increased by 15.5％-20.9％,and the number of corm increased by 17.0-25.2 per m2.Mother-plant-cutting technology is a simple and high efficient innovative technology for chufa pathogen reduction and yield increase.
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