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小麦春季肥水管理的及时促控,是高产中的重要问题。以农历节令为依据,常因播种早迟、品种不一,同一时节小麦到达发育阶段不同,因此看苗管理很重要。小麦植株各部分器官都是同源的轴性衍生结构,按照叶、鞘、茎、穗的严格顺序分化发育,这种顺序性构成了各器官的不同部位,在同一时期的同伸关系。根据出叶的顺序即可推断生殖器官的发育时期,用以指导肥水管理。1978年我们用半冬性的沙达特品种,按一般大田生育状况,以心叶露出2—3厘米为标准,采用定株观察春季各叶出生时与穗分化的关系。研究
Wheat spring fertilizer management in a timely manner to promote control, is an important issue in high yield. Lunar New Year holiday order, often due to sowing sooner or later, different varieties, the same season wheat arrived at different stages of development, so watching seedlings management is very important. All parts of wheat plants are homologous axial derivative structure, according to the leaves, sheaths, stems and spikes of the strict order of differentiation and development, this sequence constitutes the different parts of various organs in the same period of the same extension relationship. According to the order of leaves can infer the developmental period of reproductive organs, to guide fertilizer and water management. In 1978 we use the semi-winter Sauter breed, according to the general field of fertility conditions, 2-3 cm centipedetails as the standard, the use of plants to observe the spring leaves at birth and ear differentiation. the study