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利用盆栽方式对夏谷不同叶片的养分吸收及其运转状况进行了试验研究。根据叶片的生理功能和作用,将不同叶片分为根叶组(初叶～第8叶)、茎叶组(第9～13叶)、穗叶组(第14～17叶)和粒叶组(第18～旗叶)。各叶组分别对根系、茎秆、穗部性状及籽粒发育起主要作用。各叶组的叶片对矿质营养元素的输出能力不同,茎叶组叶片的氮、钾运转率最高,穗叶组次之,粒叶组最低。茎叶组磷的运转率大于穗叶组与粒叶组,根叶组叶片干物质重量的最大时期出现在抽穗期,茎叶组在开花期,穗叶组在乳熟期,而粒叶组出现在完熟期,其平均单叶最大干重分别为96.5mg,269.4mg、271.9mg和274.6mg。越是上位叶组的叶片其平均单叶最大干重值越大。
The pot experiment was conducted to study the nutrient uptake and its operation of different leaves in summer valley. According to the physiological function and function of leaves, the different leaves were divided into root and leaf groups (leaflet to leaf8), stem and leaf group (leaf9 to leaf13), leaf group (leaf14 to leaf17) and leaflet group The first 18 ~ flag leaf). Each leaf group played a major role in root, stem, panicle traits and grain development respectively. The leaves of each leaf group had different output capacity of mineral nutrients. The leaf nitrogen and potassium turnover rate of leaves in the stem and leaf group was the highest, followed by the leaf group and the lowest in the leaf group. The phosphorus turnover rate in stems and leaves was higher than that in the leaves and the leaves. The maximum dry matter weight of the leaves in the leaves was at the heading stage, the stem and leaves at the flowering stage and the leaves and the leaves at the milky stage Appeared in the mature stage, the average single leaf maximum dry weight were 96.5mg, 269.4mg, 271.9mg and 274.6mg. The higher the upper leaf group leaf average dry weight per leaf greater.