论文部分内容阅读
采用田间试验与室内分析相结合的方法,研究了冀东地区马铃薯(克新1号)在地膜覆盖栽培、块茎产量38718kg/hm2条件下的植株生长动态。结果表明:植株鲜重、干重随生长进程而增加,5月17日～5月31日,是马铃薯茎枝鲜重、干重增长最快的时期,分别占各自总增长量的44.36%,34.35%。4月16日～5月16日,植株生产的干物质主要分配在叶中、茎枝次之、块茎最少;此后,干物质向块茎分配的比率则明显上升,收获时,植株生产的干物质主要贮存在块茎中,占植株总干重的74.43%。
The field experiment and laboratory analysis were combined to study the plant growth dynamics of potato (Kexin 1) in the eastern part of Hebei Province under plastic film mulching and tuber yield 38718kg / hm2. The results showed that the fresh weight and the dry weight increased with the growth process. From May 17 to May 31, it was the stem and shoot fresh weight and dry weight of potato growing fastest, accounting for 44.36% of their total growth, 34.35%. From April 16 to May 16, the dry matter produced by the plant was mainly distributed in the leaves, followed by the stems and branches and the least tubers. After that, the ratio of dry matter to tuber allocation increased significantly. At the time of harvest, the dry matter produced by the plants Mainly stored in tubers, accounting for 74.43% of the total plant dry weight.