Many growers spend considerable time choosing among sidedressers such as calcium nitrate, sodium nitrate, 30 percent UAN liquid, and 24S UAN liquid.

許多種植者花費(fèi)了相當(dāng)多的時(shí)間選擇側(cè)施肥料免费一级毛片在线观看视频，比如硝酸鈣自拍播放、硝酸鈉国产女主播喷水视频在线观看、30％的UAN液體肥料和24S的UAN液體肥料日韩爱色成人片在线观看视频网站。

In this paper, the hydrophobic cellulose nitrate microporous composite membranes have been obtained by modification of hydrophilic cellulose nitrate microporous membranes by the use of plasma polymerization of octafluorocyclobutane.

本文以八氟環(huán)丁烷為單體天天日天天干天天色，采用等離子體聚合法將親水性硝酸纖維素微孔膜改性三级片黄色欧美性爱视频，制得疏水硝酸纖維素微孔復(fù)合膜。

Because the traditional resolver cellulose nitrate lustre-coating agent it does not bear the aging, the resistance to cold to be bad, shortcomings and so on hygienic performance difference receive the impact, but emulsion cellulose nitrate lustre-coating agent, although the comparison environmental protection and the hygienic performance are high, but because became the membrane glossiness to be bad and the emulsion long-term laying aside does not stabilize has limited its application.

傳統(tǒng)的溶劑型硝化纖維光亮劑因其不耐老化国产精品视频一区二区首页、耐寒性差欧美老熟妇A乱子视频在线观看、衛(wèi)生性能差等缺點(diǎn)而收到?jīng)_擊，而乳液型硝化纖維光亮劑雖然比較環(huán)保且衛(wèi)生性能較高亚洲口咬一级视频，但因成膜光澤性較差和乳液長(zhǎng)期放置不穩(wěn)定而限制了其應(yīng)用久久久久久久综合日本亚洲欧美。

Therefore, when configuration resolver leather lustre-coating agent uses the alkyd resin and the melamine xylenol-formaldehyde resin and the cellulose nitrate mix method, the retention cellulose nitrate Cheng Mo merit, improves it not to bear the aging, the cold resistant bad shortcoming, undergoes the repeated test, compounds the successful resolver lustre-coating agent to have the very good radiance and softness, bears the stretch, bears scours, becomes the membrane to be smooth.

因此，在配制溶劑型皮革光亮劑時(shí)采用醇酸樹(shù)脂和三聚氰胺甲醛樹(shù)脂與硝化纖維混合的方法欧美快射视频合集，保留硝化纖維成膜的優(yōu)點(diǎn)综合在线免费观看三级视频一区二区，改進(jìn)其不耐老化，耐寒性較差的缺點(diǎn)，經(jīng)過(guò)反復(fù)試驗(yàn)亚洲群体性爱视频，配制成功的溶劑型光亮劑有很好的光亮度及柔軟度人人干,人人摸人人草，耐拉伸，耐擦洗欧美裸体一级视频，成膜光滑91在线九色。

Results The activity of copper and cerium oxide catalysts were better than that of copper nitrate or cerium nitrate.

結(jié)果Cu／Ce復(fù)合氧化物催化劑對(duì)吡蟲(chóng)啉農(nóng)藥廢水具有較高的催化活性。

ResultsThe activity of copper and cerium oxide catalysts were better than that of copper nitrate or cerium nitrate.

然而亚洲无视频区，催化濕式氧化能實(shí)現(xiàn)有機(jī)污染物的高效降解好爽好大好紧别拔出来视频，同時(shí)可以大大降低反應(yīng)的溫度和壓力。

The round trip flow time is cut short from two hours to ten minutes and the method adopts silver nitrate-bismuth nitrate united screening method to eliminate the disturb of chorine ion instead of strenuous noxious mercury sulfuric.

本方法適當(dāng)提高硫酸濃度色色色色色色色色色播播，強(qiáng)化了重鉻酸鉀的氧化效率亚洲福利小视频，使回流時(shí)間由 2h縮短到 10min ；并且用硝酸銀和硝酸鉍聯(lián)合掩蔽法能消除氯離子的干擾538视频在线免费观看，代替劇毒的硫酸汞黄页网站免费49vvcom。

The nitrate reductase is an molybdenum enzyme, molybdenum cofactor is necessary for the activity of nitrate reductase.

所有的硝酸還原酶都是鉬酶，需要有鉬輔助因子的參與精品国产免费污网站入口。

0Mg/L 6-benzylaminopurine was the optimal concentration of shoots quantity inducing which frequency of inducing shoots and number of shoots per explant were 100% and 11.1 respectively. 0.5mg/L 6-benzylaminopurine was the optimal concentration of shoots length inducing which average length of shoots was 12.0mm. Explant size had significantly effects on direct shoots quantity and length induction. When complete cotyledon used as explant, frequency of inducing shoots, number of shoots per explant and average length of shoots could approach to 100%, 6.7 and 17.1mm respectively. 2.0mg/L silver nitrate could significantly increase shoot quantity induction, both frequency of inducing shoots and number of shoots per explant could be as high as 97.2% and 4.2 respectively. But silver nitrate also could restrain shoots elongation.

結(jié)果表明：不同黃瓜品種直接不定芽數(shù)量誘導(dǎo)存在顯著差異国产无码专区视频，但長(zhǎng)度誘導(dǎo)無(wú)顯著差異；6-芐氨基嘌呤對(duì)直接不定芽數(shù)量和長(zhǎng)度的誘導(dǎo)作用顯著国产精av，其中4.0mg/L為數(shù)量誘導(dǎo)適宜濃度色婷婷综合在线，其出芽率和每外植體出芽數(shù)達(dá)到最高，分別為100.0%和11.199久久99这里只有视频精品视频，0.5mg/L為長(zhǎng)度誘導(dǎo)適宜濃度国内激情网站，其平均芽長(zhǎng)12.0mm；外植體的大小對(duì)直接不定芽數(shù)量和長(zhǎng)度均具顯著影響www,se，隨著子葉的增大誘導(dǎo)直接不定芽的數(shù)量和長(zhǎng)度增加久久国产AV人人做人人爽，其中單片完整子葉為最適宜大小，其出芽率久久艹视频、每外植體出芽數(shù)和平均芽長(zhǎng)分別達(dá)到100%国产精品视频久久、6.7和17.1mm；硝酸銀也對(duì)直接不定芽數(shù)量誘導(dǎo)影響顯著97国产一区二区精品久久呦，其中2.0mg/L為適宜濃度三级免费观看网站，出芽率和每外植體出芽數(shù)分別達(dá)到97.2%和4.2，但對(duì)芽長(zhǎng)有抑制作用国产美女真人天天爽一级。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物體內(nèi)氮素的主要來(lái)源二级三级毛片，本研究深入探討了基質(zhì)通氣狀況對(duì)黃瓜根系氮素吸收、運(yùn)輸和氮代謝的影響在线观看无码AV直接进入，結(jié)果表明G1通氣處理根系的銨鹽五月天97超碰精品在线、硝酸鹽爱去操综合网、游離氨基酸和可溶性蛋白含量均較高精品国产一区二区在线观看；非通氣處理(F1處理)根系內(nèi)銨鹽狼色行动在线视频、硝酸鹽和游離氨基酸含量呈先升高后降低的趨勢(shì)，而可溶性蛋白含量始終較低一级女人自慰毛片三十分钟，比對(duì)照降低11.03%性交小视频。G1處理根系硝酸還原酶、亞硝酸還原酶日本亚洲欧美日韩工程、谷草轉(zhuǎn)氨酶91视频久久久、谷丙轉(zhuǎn)氨酶、谷氨酰胺合成酶活性均較高国产免费午夜福利短视频在线观看；而F1處理的酶活性在處理末期顯著降低黃色网站中文字幕，其中谷氨酰胺合成酶活性比對(duì)照降低33.33%。