本文關(guān)鍵詞：海洋側(cè)孢短芽孢桿菌（AMCC10172）生物有機肥對干旱條件下玉米生長發(fā)育影響的研究　出處：《山東農(nóng)業(yè)大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 玉米 海洋側(cè)孢短芽孢桿菌 有機肥 水 干旱脅迫

【摘要】：本文以玉米(農(nóng)大108)為試驗材料,通過盆栽灌溉施肥試驗,采用處理少、效率高、目前國內(nèi)外應(yīng)用較為廣泛的“3414”試驗方案設(shè)計,研究了海洋側(cè)孢短芽孢桿菌、有機肥和水對玉米生長發(fā)育的影響相關(guān)性,明確了三者在不同灌溉條件下對盆栽玉米產(chǎn)量、干物質(zhì)積累量、葉綠素值、玉米植株體內(nèi)及土壤氮磷鉀的影響。主要試驗結(jié)果如下： 1、在本試驗條件下,海洋側(cè)孢短芽孢桿菌、有機肥、水分都能不同程度的提高玉米植株干物質(zhì)積累量。從盆栽玉米產(chǎn)量看,海洋側(cè)孢短芽孢桿菌在土壤中能不同程度提高盆栽玉米的產(chǎn)量,為達到最佳使用效果,要選擇適當用量,過量的海洋側(cè)孢短芽孢桿菌會限制玉米產(chǎn)量的增加,尋找一個適宜施用量對于玉米增產(chǎn)有重要意義。 海洋側(cè)孢短芽孢桿菌、有機肥和水相互作用可以提高土壤有效磷含量,降低過度施肥對土壤磷素含量造成的影響,大幅度提高各養(yǎng)分利用率。一定量的海洋側(cè)孢短芽孢桿菌能夠促進植株對磷素的吸收,增加植株體內(nèi)磷素的積累量。 土壤氮素的含量在海洋側(cè)孢短芽孢桿菌、有機肥和水三因素不同處理情況下差異顯著,土壤不同含氮量也體現(xiàn)了玉米對氮素利用效率的差異。水在植物吸收土壤氮素上發(fā)揮重要作用,海洋側(cè)孢短芽孢桿菌能提高玉米抗旱性,在干旱脅迫下能夠提高玉米植株對氮素的吸收利用。 海洋側(cè)孢短芽孢桿菌能夠顯著提高玉米對鉀的累積；在沒有海洋側(cè)孢短芽孢桿菌作用的情況下,有機肥和水分可以提高植株鉀素的積累量,但顯著低于添加海洋側(cè)孢短芽孢桿菌的處理。 2、玉米植株鉀的積累量是玉米產(chǎn)量形成的基礎(chǔ),施海洋側(cè)孢短芽孢桿菌菌肥能提高植株鉀積累量,從玉米收獲期植株對鉀素的累積結(jié)果可以看出,隨著施海洋側(cè)孢短芽孢桿菌用量的增加,植株內(nèi)鉀累積量增加,在干旱情況下,適量的海洋側(cè)孢短芽孢桿菌和有機肥能提高玉米對鉀素的累積,增加玉米產(chǎn)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.

【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：S513

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