摘要
对不同栽培条件下花生干物质的积累、分配与转移规律进行研究,结果表明:干物质分配苗期以营养器官为主,花期营养器官与生殖器官并进,以后叶片中的干物质越来越多地转移到生殖器官,饱果成熟期叶片仍保持一定的绿叶面积,能继续供给生殖器官干物质。地膜覆盖与露地栽培相比,更有利于干物质积累、分配与转移,主要表现在 LAI增加,生物产量提高,覆膜能显著提高地温,增加土壤水分与速效养分含量。
Peanut dry matter accumulation, distribution and transfer were studied under plastic film mulch and normal cultivation conditions. Results showed that all dry matter of leaves was distributed to nutritive organs in seeding stage, while it was mostly transferred to reproductive organs in flowering stage. The plant population in pod filling and maturation still kept a certain LAI, and the leaves continued to provide dry matter for reproductive organs. There were some advantages for dry matter accumulation, distribution and transfer in plastic film mulch condition compared with the normal cultivation conditions. It was mainly shown on the increase of LAI and improvement of biomass. Plastic film mulch could significantly increase soil temperature, plough layer soil water and available nutrient content.
出处
《花生学报》
2005年第1期28-32,共5页
Journal of Peanut Science
基金
河南省科技攻关项目(9901010109)
