海洋侧孢短芽孢杆菌（AMCC10172）生物有机肥对干旱条件下玉米生长发育影响的研究

发布时间：2018-01-02 18:24

本文关键词：海洋侧孢短芽孢杆菌（AMCC10172）生物有机肥对干旱条件下玉米生长发育影响的研究　出处：《山东农业大学》2013年硕士论文　论文类型：学位论文

【摘要】：本文以玉米(农大108)为试验材料,通过盆栽灌溉施肥试验,采用处理少、效率高、目前国内外应用较为广泛的“3414”试验方案设计,研究了海洋侧孢短芽孢杆菌、有机肥和水对玉米生长发育的影响相关性,明确了三者在不同灌溉条件下对盆栽玉米产量、干物质积累量、叶绿素值、玉米植株体内及土壤氮磷钾的影响。主要试验结果如下： 1、在本试验条件下,海洋侧孢短芽孢杆菌、有机肥、水分都能不同程度的提高玉米植株干物质积累量。从盆栽玉米产量看,海洋侧孢短芽孢杆菌在土壤中能不同程度提高盆栽玉米的产量,为达到最佳使用效果,要选择适当用量,过量的海洋侧孢短芽孢杆菌会限制玉米产量的增加,寻找一个适宜施用量对于玉米增产有重要意义。海洋侧孢短芽孢杆菌、有机肥和水相互作用可以提高土壤有效磷含量,降低过度施肥对土壤磷素含量造成的影响,大幅度提高各养分利用率。一定量的海洋侧孢短芽孢杆菌能够促进植株对磷素的吸收,增加植株体内磷素的积累量。土壤氮素的含量在海洋侧孢短芽孢杆菌、有机肥和水三因素不同处理情况下差异显著,土壤不同含氮量也体现了玉米对氮素利用效率的差异。水在植物吸收土壤氮素上发挥重要作用,海洋侧孢短芽孢杆菌能提高玉米抗旱性,在干旱胁迫下能够提高玉米植株对氮素的吸收利用。海洋侧孢短芽孢杆菌能够显著提高玉米对钾的累积；在没有海洋侧孢短芽孢杆菌作用的情况下,有机肥和水分可以提高植株钾素的积累量,但显著低于添加海洋侧孢短芽孢杆菌的处理。 2、玉米植株钾的积累量是玉米产量形成的基础,施海洋侧孢短芽孢杆菌菌肥能提高植株钾积累量,从玉米收获期植株对钾素的累积结果可以看出,随着施海洋侧孢短芽孢杆菌用量的增加,植株内钾累积量增加,在干旱情况下,适量的海洋侧孢短芽孢杆菌和有机肥能提高玉米对钾素的累积,增加玉米产量。
[Abstract]:In this paper, maize (Nongda 108) as test materials, through pot experiments of irrigation and fertilization, the small, high efficiency, widely applied both at home and abroad of the "3414" experiment design of Brevibacillus laterosporus, relationship between organic fertilizer and water on maize growth, the three yield the potted maize under different irrigation conditions, dry matter accumulation, chlorophyll, maize and effects of soil nitrogen and phosphorus potassium. The main results are as follows:
1, under the conditions of this experiment, Brevibacillus laterosporus, organic fertilizer, water can improve the dry matter accumulation of different maize plant. From maize yield, Brevibacillus laterosporus could increase maize yield in the soil, in order to achieve the best results, to choose the appropriate amount of maize yield will increase the limit excessive Brevibacillus laterosporus, looking for a suitable fertilizer for maize yield is of great significance.
Brevibacillus laterosporus, organic fertilizer and water interaction can improve the content of available phosphorus in soil, reduce the impact caused by excessive fertilizer application on soil phosphorus content, greatly improve the utilization rate of nutrients. A certain amount of Brevibacillus laterosporus could promote the plant on phosphorus absorption, increase the phosphorus element accumulation.
The content of soil nitrogen in Brevibacillus laterosporus, organic fertilizer and water three factors treated by different significant differences, different soil nitrogen content also reflects the difference of nitrogen use efficiency in maize. Water absorption plays an important role in soil nitrogen in plants, Brevibacillus laterosporus could improve the drought resistance of maize. Can improve the absorption and utilization of nitrogen by maize plants under drought stress.
Marine Bacillus cereus can significantly improve the accumulation of potassium in maize. Under the action of no marine Bacillus cereus, organic manure and water can increase the accumulation of potassium, but significantly lower than that of the addition of Bacillus cereus.
2, the accumulation of potassium is the basis of maize yield formation of maize, fertilizer from marine brevibacilluslaterosporus fertilizer can increase plant K accumulation, from corn harvest stages on potassium accumulation results show that with the increase of nitrogen from marine brevibacilluslaterosporus dosage, plant K accumulation increased in under drought conditions, the amount of Brevibacillus laterosporus and organic fertilizer can increase the zeatin on potassium accumulation, increase the yield of corn.

【学位授予单位】：山东农业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：S513

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