棉花看苗诊断就是从棉株根、茎、叶、花的生育动态来识别它是壮苗、旺苗还是弱苗,以便根据不同的苗情,采取不同的方法来进行培育。棉农在应用这一方法上早已有丰富的经验。例如:“锈根不发”,这是对根的看苗诊断;“红梗薄叶大肚黄”,这是对成株茎、叶、桃的看苗诊断;“花见花四十八”、“白露花不归家”,这是用花衡量农时,指出时间的迫切性,以便及时加强管理。 Cotton seedling diagnosis is from cotton plant roots, stems, leaves, flowers, fertility trends to identify it is strong seedlings, Wang Miao or weak seedlings, so that according to different seedlings, take a different approach to nurture. Farmers have long experience in applying this method. For example: “rust root does not hair”, which is the root of the seedlings diagnosis; “red stem thin leaf yellow belly”, which is on the plant stems, leaves, peach seedlings diagnosis; “flowers see flower forty-eight” “White lotus does not go home”, which is to measure the agricultural use of flowers, pointed out the urgency of time in order to strengthen management in a timely manner.