A new recovery technology of solid waste was made which is from furfuryl alcohol production by furfural hydrogenization. When the solid waste is placed in a vacuum drying box, and is under lower negative pressure and at 130℃, the organic materials in solid waste can be distilled and then returned to the refining workshop to produce qualified furfuraldehyde and furfuryl alcohol. The remainder is mixed with soda ash and roasted in a reverberating furnace. The sodium chromate can be obtained by leaching. Rough cupric oxide is dissolved in nitric acid and cupric nitrate is obtained. A new catalyst was prepared by the above sodium chromate and cupric nitrate and used in furfuryl alcohol production.

將糠醛液相加氫生產(chǎn)糠醇產(chǎn)生的廢渣置于真空干燥箱中，在較低的負(fù)壓狀態(tài)下保持130℃的溫度91p人妻，蒸餾回收廢渣中的有機(jī)物，返回糠醇精制車間獲得合格的糠醇與糠醛產(chǎn)品；剩余的固體廢棄物與純堿混合美女黄色福利视频，在反射爐中焙燒，浸取獲得鉻酸鈉水溶液亚洲专区在线观看无码；最后剩下的粗氧化銅溶于硝酸得到硝酸銅溶液玖玖玖在线精品免费视频；將鉻酸鈉溶液、硝酸銅溶液按一定比例混合亚洲欧美一区二区日韩另，加入氨水?dāng)嚢枞度蘸访赖谝灰常蛛x出的沉淀經(jīng)傳統(tǒng)方法焙燒活化、造粒制得新催化劑,在线观看黄色网址，回用于糠醛液相加氫生產(chǎn)糠醇人人看人人插人人摸。

Basial nitrogen fertilizer of traditional treatment can beget leaching loss of soil nitrate before top-dressing, but top-dressing beget hardly the leaching loss because cotton assimilated large numbers of nitrogen for accelerated growing.

傳統(tǒng)處理施肥量高，基肥比例大易引起土壤硝態(tài)氮的淋移損失又黄又刺激又爽又免费的视频，損失數(shù)量與棉花生育時(shí)期有關(guān)羞羞色院91精品网站，棉花生育期追氮由于棉花對氮素的大量吸收，硝態(tài)氮淋移損失相對較小黄片a片在线免费观看。

2Soil column leachate experiment shows, soil texture and soil section form are the main factors affecting the nitrate leaching; in soil organic fertilizer produce a nitrate leaching process, during five-month experiment, nitrate content has be increasing in leakage solution, organic fertilizer applying decrease the pH and increase the electric conduction of leakage solution, there is positive action between nitrate content in leakage solution and electric conduction, which shows that nitrate-N accumulation during organic fertilizer applying is one of the main factors for soil salification; for decrease the leaching of the nitrate-N in soil, in sandy moisture soil the best amount of organic fertilizer should be 7.5～ 15 t·hm~(-2), in Loamy moisture

在小麥-玉米輪作體系上投入化肥氮300kg·hm~(-2)N和有機(jī)肥22.3t·hm~(-2)折N261.2kg·hm~(-2久久人人澡人人爽人人爱，能使農(nóng)田氮素收支達(dá)到平衡，在兼顧環(huán)境效益的基礎(chǔ)上獲得了較高的產(chǎn)量效益免费毛片基地。并通過肥料效應(yīng)函數(shù)和硝態(tài)氮累積效應(yīng)函數(shù)進(jìn)一步預(yù)測最佳施肥組合国产精品偷啪在线观看，即化肥氮施用量為N226.5kg·hm~(-2)，有機(jī)肥用量為39.9t·hm~(-2)折N466.8kg·hm~(-299热这里只有精品国产首页，其中小麥季施化肥氮105.85kg·hm~(-2)N亚洲免费发布白白视频、有機(jī)肥30t·hm~(-2)折N351kg·hm~(-2，玉米季施化肥氮120kg·hm~(-2)N国产九九av，有機(jī)肥9.9t·hm~(-2)折N115.8kg·hm~(-2可以免费看的黄色。同時(shí)亚洲黄色网站1，磷素平衡分析表明，在施用有機(jī)肥的基礎(chǔ)之上天天射av，化學(xué)磷肥的施用量應(yīng)適量的減少或不施黄色色色色色色色网站。