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由于气候条件年际间差异较大,所以,春季马铃薯的产量和效益不大稳定。近年来,我市在春季马铃薯种植技术上实行四改,取得了增产增收的显著效果。 一改品种选用 过去我市种植的马铃薯品种多为不脱毒的晚熟品种波兰二号和产量相对较低的克新四号等,通过改种脱毒早熟品种豫马铃薯一号、二号等,每667平方米增产50％至1倍以上。 二改催芽方法 以前通常采用室内催芽法,即利用一般家庭住房,但由于本地农民冬天不烧火炕,房子保温升温
Due to the large difference in annual climatic conditions, the output and benefits of spring potato are not stable. In recent years, the city implemented four changes in the spring potato planting technology, and achieved remarkable results of increasing output and increasing income. A change in the selection of varieties used in the city of potato varieties in the past mostly non-detoxification of late-maturing varieties Poland II and relatively low yield of the new Kexin IV, etc., by changing the detoxification precocious varieties Yu potato one, two, Each 667 square meters increase 50% to 1 times more. Second change before the bud method commonly used indoor germination method, that is, the use of ordinary family housing, but because local farmers do not burn the winter kang, heat insulation of the house