论文部分内容阅读
试验选用马铃薯品种威芋3号,采用田间试验方法,研究了薯玉传统间作模式、薯豆间作新模式下氮素形态对马铃薯产量、品质、营养吸收的影响。结果表明:薯豆间作显著提高马铃薯产量,比单作和薯玉间作分别增产17.2%、5.8%,并显著提高薯块粗蛋白含量和单株氮、钾含量,但使淀粉含量降低。与硝态氮肥相比较,铵态氮肥、酰胺态氮肥显著提高马铃薯产量,分别增产15.73%、13.49%;与其他两种形态氮肥相比,铵态氮肥显著提高了薯块的粗蛋白、Vc含量、植株氮、磷、钾含量,但显著降低了还原糖、淀粉含量。氮肥形态与间作对马铃薯粗蛋白、淀粉、还原糖、产量、单株氮、钾含量有显著的交互效应。
The experiment was conducted on the potato cultivar “WeiJan 3”. The effects of nitrogen forms on potato yield, quality and nutrition absorption were studied by field experiment. The results showed that potato intercropping significantly increased the yield of potato, which increased 17.2% and 5.8% respectively compared with that of intercropping with monoculture and intercropping, and significantly increased the content of crude protein and the content of nitrogen and potassium in the plant, but decreased the content of starch. Compared with nitrate nitrogen fertilizer, ammonium nitrogen and amido nitrogen fertilizer significantly increased the yield of potato by 15.73% and 13.49% respectively. Compared with the other two forms of nitrogen fertilizer, ammonium nitrogen fertilizer significantly increased the crude protein and Vc content , Plant nitrogen, phosphorus and potassium content, but significantly reduced the reducing sugar, starch content. Nitrogen forms and intercropping had significant interaction effects on crude protein, starch, reducing sugar, yield, single plant nitrogen and potassium contents of potato.