锌与尿素结合对锌有效性及尿素转化的影响
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赵丽芳,袁亮,张水勤,赵秉强,林治安,李燕婷
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Effects of Zinc Combined with Urea on Zinc Availability and Urea Conversion
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ZHAO LiFang,YUAN Liang,ZHANG ShuiQin,ZHAO BingQiang,LIN ZhiAn,LI YanTing
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表2 锌与尿素结合对土壤有效锌含量的影响
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Table 2 Effects of combination of zinc and urea on soil available zinc content (mg·kg-1)
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处理
Treatment | 培养时间 Incubation time (d) | 平均
Mean | 固定率
Fixed rate
(Zn, %) | | 0.25 | 0.5 | 1 | 2 | 3 | 5 | 7 | 14 | | CK | 0.84f | 0.89ef | 0.70e | 1.04e | 0.71d | 0.79d | 1.34c | 1.25c | 0.95 | / | | U | 0.79f | 0.78f | 0.89de | 1.04de | 0.73d | 0.94cd | 1.29c | 1.24c | 0.96 | / | | Zn0.5 | 1.15de | 1.03de | 0.93de | 1.09de | 1.04cd | 1.05cd | 1.44c | 1.33c | 1.13 | 71.15 | | Zn5 | 3.54c | 3.69b | 3.70b | 2.80b | 2.87a | 2.96b | 3.05b | 3.17b | 3.22 | 64.30 | | U+Zn0.5 | 1.04e | 1.08d | 1.17cd | 1.44cd | 1.39bc | 1.16cd | 1.43c | 1.37c | 1.26 | 51.54 | | U+Zn5 | 4.06b | 3.74b | 3.74b | 3.48b | 3.19a | 3.00ab | 3.01b | 3.19b | 3.43 | 61.11 | | UZn0.5 | 1.20d | 1.39c | 1.30c | 1.46c | 1.63b | 1.28b | 1.49c | 1.43c | 1.40 | 30.38 | | UZn5 | 4.26a | 4.32a | 4.64a | 3.62a | 3.29a | 3.39a | 3.61a | 3.75a | 3.86 | 54.31 |
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