本文選題：紫莖澤蘭 + 微生物堆肥��； 參考：《草業(yè)學(xué)報》2017年06期

【摘要】：紫莖澤蘭是我國危害最嚴重的外侵植物,具有動物、植物和微生物毒性,研究紫莖澤蘭野外就地堆肥技術(shù),評估腐熟效果,可為有效防除與資源化利用提供科學(xué)依據(jù)。在野外自然條件下,通過接種惡臭假單胞菌(Pseudomonas putita sp.)和熱解纖維梭菌(Clostridium thermocellumsp.),同時添加尿素和硫酸鈣以及覆蓋農(nóng)用薄膜研究紫莖澤蘭生物堆肥效果,并評價紫莖澤蘭發(fā)酵產(chǎn)物生物毒性。接種菌劑后,堆肥高溫期(50.0℃~64.5℃)持續(xù)時間達22d,石油醚提取物從3.15g/kg降低至0.37g/kg,80d可充分腐熟紫莖澤蘭。腐熟物料的pH、有機質(zhì)、養(yǎng)分和重金屬含量符合NY/525-2011國家標(biāo)準(zhǔn),腐殖酸含量為8.42%。動物毒性試驗表明,浸提液對小鼠體重增長無顯著影響,心、肝、腎、肺等組織器官未見病理變化。用生物堆肥浸提液浸種,促進小麥種子發(fā)芽率指數(shù)、活力指數(shù)和苗高,分別比無離子水浸種提高了8.65%、28.79%和23.69%;在添加紫莖澤蘭生物堆肥的土壤中,微生物碳氮和脫氫酶活性比不施肥和單施化肥顯著提高。生物堆肥可野外就地腐熟紫莖澤蘭,降解有毒物質(zhì),提供有機肥源,實現(xiàn)紫莖澤蘭的經(jīng)濟、有效防除與資源化利用。
[Abstract]:Eupatorium purpurea is the most serious invasive plant in China, which has animal, plant and microbial toxicity. The study of field composting technology and evaluation of rotting effect can provide scientific basis for effective control and utilization of resources. In the field, Pseudomonas putita sp. was inoculated with Pseudomonas putita sp. And Clostridium thermocellum sp. with addition of urea and calcium sulfate and mulching agricultural film to study the effect of compost and evaluate the biotoxicity of the fermentation product of Eupatorium purpurea. After inoculation, the duration of compost was 50.0 鈩，

本文編號：2023024