不同灌溉和钾肥浓度对秋葵生理生化指标的影响

Effects of Physiological and Biochemica of Okra under Different Irrigations and Potassium

以秋葵为研究对象,采用盆栽试验,研究了润湿灌溉、仅有承隔盘、以色列新一代灌溉和传统灌溉方式下不同钾肥浓度对秋葵常用生理生化指标的影响。结果表明,灌溉方式和钾肥浓度对秋葵植株叶片叶绿素含量具有显著的影响,润湿灌溉条件下秋葵植株叶片叶绿素含量较高,最大值达到22.55 mg/g,受钾肥浓度的影响较小;相同钾肥浓度下,秋葵植株根系活力表现为润湿灌溉≈仅有承隔盘>传统栽培≈以色列新一代灌溉;秋葵植株叶片中硝酸还原酶活性受钾肥浓度影响较小,润湿灌溉≈仅有承隔盘>以色列新一代灌溉>传统栽培,以色列新一代灌溉极显著高于传统灌溉。

Using okra as the research object,a pot experiment was conducted to reveal the effect on physiological and biochemical indicators of okra,with wet irrigation,tray only irrigation,Israel's new generation irrigation,and traditional irrigation methods.The results showed that irrigation methods and potassium fertilizer concentrations had a significant impact on the chlorophyll content of okra plant leaves.Under wet irrigation conditions,the chlorophyll content in the leaves of okra plants was relatively high,with a maximum value of 22.55 mg/g,which was less affected by potassium fertilizer concentration.Under the same potassium fertilizer concentration,the vitality of plant root system showed as follows wetting irrigation≈only the diaphragm>traditional cultivation≈Israel's new generation irrigation.The activity of nitrate reductase in the leaves of okra plants was affected by potassium fertilizer,the concentration had a relatively small impact,with wetting irrigation≈only on the diaphragm>Israel's new generation irrigation>traditional cultivation,and Israel's new generation irrigation was significantly higher than traditional irrigation.