本文選題：輪作 + 十字花科作物　； 參考：《東北農(nóng)業(yè)大學(xué)學(xué)報(bào)》2017年11期

【摘要】：棚室茄子栽培易出現(xiàn)連作障礙,致使土傳病害嚴(yán)重,產(chǎn)量下降。試驗(yàn)選取芥菜、油菜兩種十字花科作物與茄子輪作,旨在探討輪作模式對(duì)棚室茄子栽培連作土壤微生物多樣性及群落結(jié)構(gòu)影響。通過Mi Seq測序分析表明,茄子/油菜輪作處理土壤細(xì)菌豐度、茄子/芥菜輪作處理土壤細(xì)菌多樣性顯著高于連作處理。聚類分析表明,茄子/油菜輪作和茄子/芥菜輪作土壤細(xì)菌群落結(jié)構(gòu)與茄子連作和農(nóng)藥熏蒸處理不同,兩個(gè)輪作處理土壤中Flavobacteria等細(xì)菌為優(yōu)勢種,可改善根區(qū)土壤生態(tài)條件,促進(jìn)作物生長。真菌多樣性分析表明,兩個(gè)輪作處理土壤中真菌多樣性和豐度顯著降低,Chaetomium等腐生真菌數(shù)量增多,有利于提高土壤有機(jī)質(zhì)含量,改善連作土壤質(zhì)量,研究可為緩解棚室茄子連作障礙提供新思路。
[Abstract]:Eggplant cultivation in shed is easy to appear continuous cropping obstacles, resulting in serious soil-borne diseases, yield decline. In this experiment, two crops of Brassica napus and Brassica napus were rotated in order to explore the effects of rotation pattern on microbial diversity and community structure of continuous cropping soil in greenhouse eggplant cultivation. The results of Mi Seq sequencing showed that the bacterial abundance of eggplant / rape rotation treatments and eggplant / mustard rotation treatments were significantly higher than that of continuous cropping treatments. Cluster analysis showed that the soil bacterial community structure of eggplant / rape rotation and eggplant / mustard rotation was different from that of eggplant continuous cropping and pesticide fumigation, and Flavobacteria was the dominant species in the soil of the two rotation treatments, which could improve the soil ecological conditions in the root zone. Promote crop growth. The analysis of fungal diversity showed that the fungal diversity and abundance of two rotation treatments significantly decreased the number of saprophytic fungi such as Chaetomium, which was beneficial to increase the content of soil organic matter and improve the soil quality of continuous cropping. The study can provide a new idea for alleviating the obstacle of continuous cropping of eggplant in shed.
【作者單位】： 哈爾濱學(xué)院食品工程學(xué)院;東北農(nóng)業(yè)大學(xué)資源與環(huán)境學(xué)院;
【基金】：黑龍江省博士后科研啟動(dòng)基金(LBH-Q16140) 公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)(201503109) 黑龍江省自然科學(xué)基金面上項(xiàng)目(C2015016)
【分類號(hào)】：S154.3;S626;S641.1
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本文編號(hào)：1775185