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不同锌含量土壤配方及锌肥在冬小麦上的产量效应
引用本文:刘奎胜,董若征,霍艳改,宋利玲,段梅轻,刘志坤,马顺尧,陈丽丽.不同锌含量土壤配方及锌肥在冬小麦上的产量效应[J].安徽农业科学,2013(17):7499-7501.
作者姓名:刘奎胜  董若征  霍艳改  宋利玲  段梅轻  刘志坤  马顺尧  陈丽丽
作者单位:平乡县农业局,河北平乡,054500;平乡县园林局,河北平乡,054500
基金项目:平乡县国家测土配方施肥补贴项目
摘    要:目的]为了解不同锌含量土壤上配方肥及锌肥在冬小麦上的增产效果。方法]以平乡县为例,筛选土壤有效锌含量不同梯度大田开展试验。结果]当耕层土壤有效锌含量为0.68 mg/kg时,配方肥增施锌肥的增产效果显著,增产率为10.8%。当有效锌含量为1.34和1.57 mg/kg时,较配方肥处理,配方肥+Zn产量变化不明显。当有效锌含量为2.26 mg/kg时,增施锌肥造成明显减产,减产390kg/hm2。与配方肥和常规处理相比,当配方肥增施锌肥15 kg/hm2ZnSO4·7H2O时,耕层土壤有效锌含量显著提高。与常规施肥相比,单施配方肥产量无明显变化。结论]当耕层土壤有效锌1.0 mg/kg,时可隔年适量施用锌肥,用量以11.3~15.0 kg/hm2ZnSO4·7H2O为宜;当耕层土壤有效锌1.0 mg/kg时,可不施锌肥。施用配方肥具有一定的经济、生态效益优势,应大力推广。

关 键 词:平乡县  冬小麦  配方肥    产量

Yield Effect of Formula and Zinc Fertilizer on Winter Wheat Planted in the Soil with Different Zinc Content
Institution:LIU Kui-sheng;Pingxiang Agricultural Bureau;
Abstract:Objective ] The study aimed to investigate the yield-increasing effect of ibImula and zinc fertilizer on winter wheat planted in the soil with different zinc content. Method] It was carried out on the field with different gradient zinc soil in Pingxiang County. Result] Zinc fertilizer had the most obvious effect on increasing winter wheat yield by 10.8% , when the content of available zinc in tilth soil was 0.68 mg/kg. Com- pared with the yield of formula fertilizer treatment, the yield of formula fertilizer and Zn treatment had no obvious change in the tilth soil, which kept the content of available zinc 1.34 mg/kg and 1.57 mg/kg, respectively. Zinc fertilizer had the most obvious effect on decreasing winter wheat yield, when the content of available zinc in tilth soil was 2.26 mg/kg, and the amount was 390 kg/hm2. In contrast to the convention and formula fertilization treatment, the treatment of formula fertilizer and Zn (15 kg/hm2ZnS04 ~ 7H20) increased the content of available zinc in tilth soil significantly. There was no significant difference to be found between conventional and formula fertilization treatment. Conclusion ] Based on the yield responses and the content of available zinc in tilth, zinc fertilizer should be applied to the soil, in which the content of availa- ble zinc in tilth was lower than 1.0 mg/kg. 11.3-15 kg/hm2ZnS04 ~ 7H2 0 was preferred every other year. It wasn't necessary to apply zinc fer- tilizer, when the content of available zinc in tilth was higher than 1.0 mg/kg. Compared with conventional fertilization, formula fertilization had good economical and ecological efficiency that should be popularized vigorously.
Keywords:Pingxiang County  Winter wheat  Formula fertilization  Zinc  Yield
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