生产实践表明,要取得小麦高产,关键在于冬前培育壮苗。壮苗的标准:从个体来说,植株墩实,根系、叶片和早期蘖按期出现,根多洁白粗壮,叶片宽厚,长短适中,叶色葱绿,分蘖茁壮;从群体来讲,冬前总茎数要达到成穗的1.5—2倍。如亩成穗40万,冬前总茎数应为60—80万。因此,要培育冬前壮苗,在种好的基础上,还应抓好以下栽培措施。 Production practice shows that to obtain high yield of wheat, the key lies in cultivating strong seedlings before winter. Strong seedling standards: From the individual, the plant stems and roots, leaves and early tillers appear on schedule, the root more white stout, generous leaves, medium length, green leaves color, tiller robust; from the group, the stem before the total stem 1.5-2 times the number to reach the ear. If the acre into 400000, the total number of stems before winter should be 60-80 million. Therefore, to cultivate strong seedlings before winter, on the basis of planting good, should also grasp the following cultivation measures.