查询词典 yield spread

Relationship between soil nutrient and growth of Castanea mollissima was studied by stepwise regress and Path analysis.The results showed that, 4 soil factors of organic matter, hydrolytic nitrogen,rapid phosphorus and rapid potassium had significant effects on its yield and growth of fliage branch, and that the most significant factors affecting yield and growth of foliage branch were rapid phosphorus and hydrolytic nitrogen, respectively.

应用逐步回归和通径分析，对土壤养分与板栗株产和徒长枝生长的相关关系进行研究，结果表明，所选的有机质、水解氮、速效磷和速效钾4个土壤养分因子对板栗株产和徒长枝的生长都有着显著和极显著的相关关系，其中以速效磷对产量影响最为显著，水解氮对徒长枝生长影响最为显著。

The average yield of product test was 2289.7 kg?hm^(-2), the yield was 12.6% more than the compare variety Hefeng No. 35 in Heilongjiang province, it resistant to cercospora sojina hara and SMW1, it was examined and approved by Heilongjiang Province Crop Variety Committee in 2005. The results showed that Hefeng No.

hm^(-2)，较对照品种合丰35增产12.6%，抗灰斑病、中抗病毒病SMVI号株系，适宜黑龙江省二、三积温带种植，2002年列入黑龙江省高油大豆良种化工程，2005年由黑龙江省农作物品种审定委员会审定推广，是国家大豆振兴计划重点推广品种，种植范围和面积迅速扩大，已累计推广7.4万hm^(-2)，推广应用前景广阔。

In recent years, the new technology has been used in the synthesis of chalcone compounds, under the 343 K condition carrying on the response in the temperature. It takes benzaldehyde and acetophenone as raw material, BF4 as resolver and the hydrotalcite as the catalyst, the yield of chalcone can reach 98.5%. This method has some advantages including shorter reaction time, higher yield and simpler operation.

近年来查尔酮化合物的合成采用了新技术，是以苯甲醛和苯乙酮为原料，BF4作为反应溶剂，水滑石为催化剂，在温度为343 K的条件下进行反应，查尔酮产率可以达到98.5%，该法具有反应时间短、操作简便、收率高等优点。

Thiazolidiane-4-carboxylic acid was prepared and used as the aid catalyst that has strengthened the catalytic effect of chloroplatinic acid, greatly improved the yield of the hydrosilylation of methyldichlorosilane with allychloride, and made the yield get to 64.9%.

通过比较，选用自制的含硫化合物4-羧基-1，3-噻唑烷作助催化剂，大大增强了氯铂酸的催化活性，使甲基二氯硅烷与氯丙烯的加成反应以较高产率得到γ-氯丙基甲基二氯硅烷，产率可达64.9%。

As a case in this study, there is a non–representative PK duality model which adopts the least squares method or even the Monte Carlo method to estimate their parameters. Using yield frequency analysis to recommend fertilization, only a group of P and K coenobium, the sixth treatment, meets the conditions of goal yield.

对Monte Carlo法也不能得到典型式的晚稻磷钾非典型肥效模型，用产量频率分析法计算推荐施肥量，表明只有一组磷钾肥用量组合入选，导致磷肥推荐用量偏高而钾肥偏低。

The proportion of liquid to solid should be above 6:10 for high conidial yield. The maximum conidial yield was 28.9×10^8 spores/g when inoculation proportion of liquid to solid was 8:10.

玉米粉和麦麸组合是该菌的良好营养源，与不同载体配合均可使产孢量达到20×10^8孢子／g以上；以小米提供营养的不如麦麸加玉米粉，当小米与载体的质量比大于3：1可获得15×10^8孢子／g的产孢量。

The experiment studied the effects of applying different amount of B and Zn to peanuts growth, development and yield. The results showed that by supplying rational micro-fertilizer of Boron and zinc, the growth and development of the first pair cotyledonary branch, root nodules leaves and pods could be promoted, the yield was significantly increased on the basis of supplying rational Nitrogen, Phosphorus and Potassium. In this experiment, supplying Boron 7.5 kg/hm^2 and 11.25 kg/hm^2 could increase by 6.87% and 8.19% in comparison with CK, supplying Zinc 7.5 kg/hm^2 and 11.25 kg/hm^2 could increase by 7.17% and 5.20% in comparison with CK.

采用大田试验研究了增施不同量硼、锌微肥对花生生长发育和产量的影响，结果表明，在合理施用氮、磷、钾肥的基础上，适量配合施用硼、锌微肥可以明显促进花生一生的生长发育，增加花生第一对侧枝长、单株根瘤、叶片和荚果数等，显著提高花生产量，其中增施硼肥7.5和11.25 kg/hm^2的处理比较对照分别增产6.87和8.19%，增施锌肥7.5和11.25 kg/hm^2的处理比较对照分别增产7.17和5.20%。

Two synthetic routes of Caffeine have been determined and investigated after the analyzing and trying for the literal synthetic methods. In one route, the target compound was prepared from chloroacetyl chloride through six steps, the total yield is 50.5 %. In another route, the target compound was obtained from cyanoacetic acid through six steps, the total yield is 45%.

对目前咖啡因工业生产工艺进行了研究，并分析了咖啡因工业生产中所存在的问题，本文提出两条可行的工业化合成路线：一条是以氯乙酰氯为起始原料，经过六步反应制得目标化合物，总收率50.5％；另一条是以氰基乙酸为起始原料经过六步反应制得目标化合物，总收率45％。

Desmodium styracifolium ; Plant density ; Carbon-nitrogen metabolism ; Yield per plant ; Yield per unit

广金钱草；种植密度；碳氮代谢；单株产量；单位面积产量

The effects of benzene, triethylamine, diethylamine and ethylene diamine on the shape, yield, N-dopping content and water-adsorption content of CN were discussed. CN materials with moderate N/C ratio (0.15) and high yield 2.2 g(gcat^(-1) were synthesized using diethylamine as the raw material.

比较了苯、三乙胺、二乙胺、乙二胺四种原料对合成CN形貌、产率、掺氮量和吸水率的影响；以二乙胺为原料合成出适中的氮碳比（N/C原子比为0.15）和较高产率2.2 g(gcat^(-1)的竹节状CN材料。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。