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在田间条件下研究了‘肥城桃’、‘红玉杏’萌芽前枝条对~(18)N—尿素的吸收及萌芽后的运转分布规律。结果表明:1.萌芽前‘肥城桃’和‘红玉杏’枝条对~(18)N—尿素具有一定的吸收能力,随着时间推移,吸收利用率有所上升,至6月2日二者分别可达27%～32%和29%.2.无论是桃或杏,对未着果的果枝来说,其新植叶片为萌芽前枝条所吸收~(18)N 最重要的“库”.3.对着果的果枝来说,果实为最重要的~(18)N“库”.4.果实能加强新生器官对于萌芽前枝条所吸收~(18)N 的“库”的作用.
Under the field conditions, the absorption of ~ (18) N-urea and the operation and distribution of buds of ’Feicheng peach’ and ’Hongyu apricot’ were studied. The results showed as follows: 1. The branches of ’Feicheng Peach’ and ’Jade Prunus armeniaca’ had a certain absorption capacity for ~ (18) N-urea before germination, with the increase of absorption and utilization rate over time, Up to 27% ~ 32% and 29% respectively.2.Whether peach or apricot, the newly-planted leaves are the most important “ ”3. Fruit is the most important fruit-bearing branch of the tree. (18) N“ Repository. ”4. The fruit strengthens the effect of new organs on the“ 18 ”N“ sinks ”absorbed by pre-budding shoots .