土豆的生长周期

Posted 2023-04-30

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土豆的品种不一样，生长周期时间也不同。
通常，早熟的生长周期是6天左右，中熟的是8天左右，而晚熟的时间会长一些，则是1天左右。
从刚开始播种，到长出小苗一般需要等2-3天左右。参考技术A

1.发芽期：播种后20天左右幼苗开始出土。从芽萌生至出苗是发芽期，进行主茎第一段的生长，发芽期生长的中心在芽的伸长，发根和形成匍匐茎，营养和水分主要靠种薯，按茎叶和根的顺序供给。

Germination period：Seedlings began to be unearthed about 20 days after sowing. From Bud initiation to seedling emergence is the germination period, the growth of the first segment of the main stem is carried out, and the center of the germination period is the elongation of the bud, the roots and the formation of the stolons. Nutrition and water mainly depend on the seeds of the potato, and are supplied in the order of stems and leaves and roots.

2.幼苗期：25天左右幼苗长高。从出苗到第六叶或第八叶展平，即完成一个叶序的生长，成为“团棵”，是主茎第二段生长，为土豆的幼苗期。幼苗期经过的时间比较短，不论春作或秋作，只有短短半个多月。

Seedling period：Seedlings grow tall about 25 days. From the seedling to the sixth leaf or the eighth leaf, it completes the growth of a leaf sequence and becomes a "cluster tree". It is the second growth of the main stem and is the seedling period of the potato. The time passed during the young seedling period is relatively short, regardless of spring or autumn, only a little more than half a month.

3.发棵开花期：45天左右土豆苗开花。从团棵到第十二或第十六叶展平，早熟品种以第一花序开花；晚熟品种以第二花序开花，为土豆的发棵期，为时一个月左右，是主茎第三段的生长。发棵期主茎开始急剧拔高，占总高度50%左右，主茎叶已全部建成，并有分枝及分枝叶的扩展。

Flowering period：About 45 days the potato seedlings bloom. From the group tree to the twelfth or sixteenth leaf, the precocious varieties bloom in the first inflorescence; The late-ripened varieties bloom in the second inflorescence, which is the flowering period of the potato. It is about one month and is the growth of the third stem. During the initiation period, the main stem began to rise sharply, accounting for about 50 % of the total height. The main stem and leaf have all been built, and there are branches and branches.

4.结薯期：90天左右土豆可以收获。即茎块的形成期，发棵期完成后，便进入以块茎生长为主的结薯期，此期茎叶生长日益减少，基部叶片开始转黄和枯萎，植株各部分的有机养分不断向块茎输送，块茎随之加快膨大，尤其在开花期后10天膨大最快。结薯期的长短受气候条件，病害和品种熟性等影响，一般在30-50天。

Potato period:Potatoes can be harvested in about 90 days. That is, after the stem block formation period is completed, it enters the tuber growing stage, which is dominated by tuber growth. During this period, the stem and leaf growth are decreasing, the base leaves begin to turn yellow and wither, and the organic nutrients in each part of the plant are continuously transported to the tubers. The tubers then accelerate their expansion. Especially in the 10 days after the flowering period. The length of the potato season is affected by climatic conditions, disease and variety maturity, and is generally 30-50 days.