發(fā)布時(shí)間：2018-05-05 17:55

  本文選題：氮營(yíng)養(yǎng) + 叢枝菌根��； 參考：《江蘇農(nóng)業(yè)學(xué)報(bào)》2017年02期

【摘要】：針對(duì)東部草原煤礦區(qū)土壤貧瘠、生物種群?jiǎn)我灰约爸参锟鼓嫘圆畹葐?wèn)題,采用盆栽方法研究了施氮(0mg/kg、100 mg/kg)與接種叢枝菌根(AM)真菌(0 g/kg、50 g/kg)協(xié)同對(duì)玉米生長(zhǎng)狀況、抗逆性和根際土壤化學(xué)性狀的影響。結(jié)果表明,單施氮、單接種AM真菌、聯(lián)合施氮和接種AM真菌顯著提高玉米干質(zhì)量23%~62%,全株氮吸收量77%~538%,磷吸收量39%~191%,鉀吸收量42%~135%。其中,施氮+接種AM真菌處理效果最好。同時(shí),3個(gè)處理也顯著提高葉片可溶性糖含量、降低相對(duì)電導(dǎo)率和脯氨酸含量,增強(qiáng)了其抗逆性。其中施氮+接種AM真菌處理的可溶性糖含量最高,相對(duì)電導(dǎo)率最低,單施氮處理的脯氨酸含量最低。同一施氮水平下,接種AM真菌顯著降低土壤pH值,卻顯著增加了土壤電導(dǎo)率、速效磷含量、速效鉀含量、土壤總球囊霉素(T-GRSP)含量和易提取球囊霉素(EE-GRSP)含量。與單接AM真菌處理相比,施氮+接種AM真菌處理能顯著提高土壤電導(dǎo)率、速效鉀含量和土壤易提取球囊霉素含量。綜合來(lái)說(shuō),氮肥與AM真菌協(xié)同處理有利于促進(jìn)菌根效應(yīng)的發(fā)揮,促進(jìn)玉米生長(zhǎng),有效改善土壤肥力,這為菌根肥料應(yīng)用于東部礦區(qū)以進(jìn)行微生物復(fù)墾和生態(tài)恢復(fù)提供了依據(jù)。
[Abstract]:In view of the problems of poor soil, single biological population and poor plant resistance in the eastern grassland coal mining area, a pot experiment was conducted to study the synergistic effect of 0 mg / kg ~ (-1) N ~ (2 +) ~ (0 mg 路kg ~ (-1) 路kg ~ (-1) on maize growth in combination with inoculated mycorrhizal fungi (0 g / kg ~ (50 g 路kg ~ (-1). Effects of stress resistance and rhizosphere soil chemical properties. The results showed that applying nitrogen alone, inoculating AM fungi alone, combined application of nitrogen and inoculation of AM fungi significantly increased the dry weight of maize by 23% and 622.The total nitrogen uptake of the whole plant was 775385.The absorption of phosphorus was 39191.The amount of potassium uptake was 42135. Among them, nitrogen application inoculated with AM fungi had the best effect. At the same time, the three treatments also significantly increased leaf soluble sugar content, reduced relative electrical conductivity and proline content, and enhanced their resistance to stress. The soluble sugar content was the highest, the relative conductivity was the lowest, and the proline content was the lowest in the AM fungi inoculation with nitrogen application alone. At the same nitrogen application level, inoculation with AM fungi significantly decreased soil pH value, but significantly increased soil electrical conductivity, available phosphorus content, available potassium content, total balloon mycin T-GRSPs content and easy to extract balloon mycin EE-GRSPs content. Compared with the single inoculated AM fungi treatment, the soil electrical conductivity was significantly increased, the available potassium content and the content of ball-mycin were easily extracted by inoculating AM fungi with nitrogen. In general, the synergistic treatment of nitrogen fertilizer and AM fungi can promote the mycorrhizal effect, promote maize growth and improve soil fertility effectively, which provides the basis for the application of mycorrhizal fertilizer to the eastern mining area for microbial reclamation and ecological restoration.
【作者單位】： %E7%85%A4%E7%82%AD%E8%B5%84%E6%BA%90%E4%B8%8E%E5%AE%89%E5%85%A8%E5%BC%80%E9%87%87%E5%9B%BD%E5%AE%B6%E9%87%8D%E7%82%B9%E5%AE%9E%E9%AA%8C%E5%AE%A4;" target="_blank">中國(guó)礦業(yè)大學(xué)<北京>煤炭資源與安全開(kāi)采國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFC0501106) 國(guó)家自然科學(xué)基金項(xiàng)目(51574253)
【分類(lèi)號(hào)】：S158;S513

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