测定棉花叶面积的方法很多,但在实际运用中,还存在些问题。如利用叶面积测定仪、网点板和打眼称重等办法,虽然精确度高,但只适应于室内进行,而且要取回整株的叶片,工序繁琐,且速度慢,只适用于研究单位。利用长宽系数法及去叶尖法,又必须 There are many ways to determine cotton leaf area, but there are still some problems in practical application. Such as the use of leaf area analyzer, dotted board and eyeball weighing method, although high accuracy, but only suitable for indoor, but also to retrieve the whole plant leaves, the process cumbersome and slow, only for research units. The use of length and width coefficient method and to the tip method, it must be