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以淮河以南麦区大面积种植的春性小麦品种扬麦18为供试材料,研究了越冬期不同用量养猪处理废水(30、60、90和120 m3·hm-2)和穗期施氮水平(0、30、60和90 kg·hm-2)对小麦中微量元素含量和籽粒品质的影响.结果表明:小麦地上部植株Ca、Mg和Fe含量随着生育期的推进先下降后上升,Cu、Zn和Mn含量则呈不断下降趋势.Ca、Mg、Cu和Zn含量除拔节期以外,均以施用处理废水120 m3·hm-2并穗期施氮90 kg·hm-2为最高;各生育期Fe和Mn含量均以施用处理废水120 m3·hm-2并穗期施氮90 kg·hm-2为最高.Ca、Mg、Cu、Zn、Fe和Mn含量在各生育期均随着处理废水施用量的增加而增加.在品质方面,施用处理废水90 m3·hm-2并穗期施氮60 kg·hm-2为最佳施肥模式.养猪处理废水通过厌氧无害化处理后与氮肥配施应用于小麦栽培,能促进小麦植株微量元素的提高并改善籽粒品质,整体而言,以越冬期施入60~120 m3·hm-2处理废水、穗期配施氮肥90 kg·hm-2为宜.
Taking spring maize variety Yangmai 18 planted in a large area in the south of Huaihe River as test material, the effects of different amounts of pigging waste water (30, 60, 90 and 120 m3 · hm-2) The effects of nitrogen level (0, 30, 60 and 90 kg · hm-2) on trace elements contents and grain quality in wheat were studied.The results showed that the contents of Ca, Mg and Fe in wheat shoots decreased first and then decreased with the growth period While the content of Cu, Zn and Mn showed a declining trend. The content of Ca, Mg, Cu and Zn except the jointing stage, were treated with 120 m3 · hm-2 of wastewater and 90 kg · hm-2 of nitrogen at the heading stage The highest content of Fe and Mn in each growth stage was the highest in the treatment of application of 120 m3 · hm-2 of waste water and 90 kg · hm-2 of nitrogen at the heading stage. The content of Ca, Mg, Cu, Zn, Fe and Mn in each growth period Both increased with the increase of treatment wastewater treatment.In terms of quality, application of wastewater treatment 90 m3 · hm-2 and spike application of nitrogen 60 kg · hm-2 for the best mode of fertilization. Swine wastewater treatment through anaerobic Application of chemical treatment and nitrogen fertilizer combination to wheat cultivation could promote the improvement of trace elements in wheat plants and improve grain quality. As a whole, 60-120 m3 · hm-2 Waste water, nitrogen fertilizer heading stage 90 kg · hm-2 is appropriate.