| 摘要: |
| 采用回归分析法,通过盆栽试验,研究莴笋无土栽培营养液中大量元素的最优配方。结果表明,当营养液中Ca(NO3)2·4H2O, KNO3, NH4H2PO4, MgSO4·7H2O分别为1 745, 1 107, 15, 893mg·L-1时,能满足莴笋生长发育的需要而获得高产。同时还确定了最佳浓度范围及不同因子对植株产量影响的相对大小。这说明用回归分析法研究无土栽培营养液配方是切实可行的。 |
| 关键词: 莴笋,无土栽培,营养液,配方,回归分析 |
| DOI： |
| 分类号:S636.204.7,S317 |
| 基金项目: |
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| The Application of Regression Analysis in Prescribing Nutrient Solution for Lettuce Hydroponics |
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| Abstract: |
| Pot experiments were carried out to study the optimal prescription of
macroelements in nutrient solution for lettuce hydroponics.The results obtained showed
that,when the contents of Ca(NO3)2·4H2O, KNO3, NH4H2PO4, and MgSO4·7H2O
were at 1 745, 1 107, 15 and 893 mg /L respectively, the nutrients in solution could
match the needs of lettuce growth and make it reach a high yield.At the same time, the
optimal ranges of every nutrient content and the relative effects of various factors on
plant yield were determined. So it is concluded that the regression analysis should be a
feasible method for studying the nutrient prescription in hydroponies. |
| Key words: lettuce,hydroponics,nutrient,solution, regression analysis, |
