| 氮磷钾肥影响蔬菜硝酸盐积累的回归正交试验分析 |
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| 引用本文： | 段咏新. 氮磷钾肥影响蔬菜硝酸盐积累的回归正交试验分析[J]. 徐州师范大学学报(自然科学版), 1992, 0(2) |
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| 作者姓名： | 段咏新 |
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| 作者单位： | 徐州师范学院生物系 |
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| 摘 要： | 本文利用回归正交试验,估算得到氮、磷、钾肥施加量与菠茶中硝酸盐积累的关系式:y=8.65+0.97x_1（N）-2.68x_2（P）+0.23x_3（K）-0.16x_1x_2（NP）。
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| 关 键 词： | 回归正交试验 氮磷钾肥 硝酸盐 菠菜 |
THE MATHEMATICAL MODEL OF FERTILIZER N, P, K TREATMENTS ON THE CUMULATION OF NITRATE IN THE VEGETABLE |
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| Duan Yongxing. THE MATHEMATICAL MODEL OF FERTILIZER N, P, K TREATMENTS ON THE CUMULATION OF NITRATE IN THE VEGETABLE[J]. Journal of Xuzhou Normal University(Natural Science Edition), 1992, 0(2) |
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| Authors: | Duan Yongxing |
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| Affiliation: | Duan Yongxing |
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| Abstract: | This paper deals with a certain mathematical model which is established through an experiment done by means of regressive and orthogonal design. The experiment shows that certain amount of different N, P, K put together, the affectation on the cumulation of nitrate in the spinach will be different.Y = 8.65 + 0.97x1 (N) - 2.68x2(P) + 0.23x3(K) - 0.16x1x2Here Y is the amount of nitrate in the spinach in 1/10mg/F.W. x1 x2 and x3 stand for N, P, K application. According to this regressions and the amount of action of N, P and K, the cumulation of nitrate in vegetable can be predicted. Lower quantity of nitrate in vegetable can be predicted. Lower quantity of nitrate can be controlled by adjusting the usage of fertilizer N, P and K. Thus certain yield can be ensured and the harm to the body of the perple can be decreased as well. |
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| Keywords: | Mathematical model Fenilizer N P K Nitrate Vegetable |
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