摘要
研究连作对设施番茄生长发育及产量的影响。利用设施番茄长期连作小区试验,研究连作1~7茬番茄植株生长发育、光合作用、果实叶片营养以及产量的变化。随着番茄连作茬数逐年增加,3个时期中设施番茄株高和茎粗,第七茬均显著低于第一茬,分别下降21.43%、11.90%、20.13%和21.30%、19.66%和13.65%;在设施栽培条件下番茄植株的净光合速率、气孔导度、蒸腾速率没有出现明显的变化趋势;果实和叶片中全钾含量显著降低;番茄产量以第四茬最高,第七茬最低,较第四茬降低15%;随着连作茬数的增加,番茄株高、茎粗、产量以及对钾的吸收均受到显著影响,但番茄经过七茬连作后光合速率尚未受到显著影响。
The study is to test the variations of facility tomato plant growth and yield. Using long-term continuous cropping facility tomato in plot, it measures the changes of plant height, stem diameter, photosynthesis, the content of total N,P,K in the fruits and leaves and yield from first to seventh continuous cropping. The height and stem diameter of facility tomato have decreased 21.43%,11.90%,20.13% and 21.30%,19.66%,13.65% compared seventh continuous cropping facility tomato with the first during three periods, respectively. Pn, Gs, and Tromml all have not significant changes. The content of total K has decreased significantly. The yield of the forth continuous cropping plot is the highest, and the seventh is the lowest, reducing 15% to the forth. Following the increase of continuous cropping. It makes a inhibition effect on the plant growth and yield of tomato,while it unrelated photosynthesis.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2013年第5期581-584,共4页
Journal of Shenyang Agricultural University
基金
现代农业产业技术体系建设专项资金项目(CARS-25)
"十二五"国家科技支撑项目(2011BAD12B03)
辽宁省重大科技攻关项目(2011215003)
沈阳市农业科技攻关专项项目(F11-092-3-00)
关键词
设施栽培
番茄
连作
产量
光合作用
facility cultivation
tomato
continuous cropping
yield
photosynthesis
