查询词典 yield spread

It showed that this mode was better than "beyond high yield mode" though lower in yield. Farmers evaluated this mode overmatching normal mode except for difficulty in technology and intensity in labor. Sparse 、 manipulative 、 weight middle season rice high yield in the middle of

轻简化栽培模式在沙洋县大田试验产量达到613kg／667m~2，比常规栽培增产4.6％；纯收入达到288.22元／667m~2，比常规栽培多147.98元；农民对该模式的评价是劳动强度小，技术上较容易，有一半的农户认为经济收益好，其它指标优。

The results showed:Under the same fertilizer consumption,covered with straw and covered with film can increase the chlorophyll content and total leer area duration of the maize,can improve leaf nitrate reeducates activity,Photosynthesis and roots vigor,and the nitrate reeducates activity,the chlorophyll content and the roots vigor present positive correlation with yield. Meanwhile,average dry matter accumulation of straw-covered increased 7.1% than this of no-ploughed,yield increased 15.3%.The average dry matter accumulation of film-covered increased 20.1% than which of no-ploughed and 12.1% than which of plough and covered with straws.And yield increased 26.8% and 10.1%,notable differences.

结果表明：在相同的肥料用量条件下，秸秆覆盖和薄膜覆膜对玉米生长发育具有良好的促进作用，能显著增加玉米叶片叶绿素含量和光合势，增强叶片硝酸还原酶活性和根系活力，同时玉米叶片硝酸还原酶活性、叶绿素含量、根系活力等与最终籽粒产量呈正相关；秸秆覆盖比免耕全生育期平均单株干物质积累量增加7.1%，籽粒产量增加15.3%，薄膜覆膜分别比免耕和翻耕残茬覆盖全生育期平均单株干物质积累量增加20.1%和12.1%，最终籽粒产量增加26.8%和10.1%，差异显著。

5The height, length of leaves, width of leaves, fresh weight of single plant, fry matter weight of single plant, leaf areas of single plant, LAI, yield of single plant and yield components were reduced during drought stress at different growth stages. The decreased percent was the most great to grains per corncob at tasseling drought stress; hundred-grain-weight, at grain stage drought stress; yield of single plant, at booting-blossoming, and the extent was

不同生育时期干旱胁迫处理春玉米株高、平均叶片长度、平均叶片宽度、单株鲜重、单株干重、单株叶面积、叶面积指数、产量及产量构成因子均有不同程度下降。

The number of fruits had the highest directly positive relationship with seed yield,followed by leaf length,collar diameter,length of bearing branch,hundred-seed weight,the number of branches,angle of bearing branches,the height of bearing branches and plant height;five of 14 seed yield components exhibited directly negative relationships with seed yield,including leaf width,ratio of leaf length to width,the number of bearing branches,bottom diameter of bearing branches and ratio of bearing branches to branches.

2果实数对种子产量的直接正效应最大，其后依次是叶长、地径、结果枝长、百粒重、分枝数、结果枝角度、结果枝高度和株高；14个产量因子中有5个对产量有直接的负效应，包括叶宽、叶长宽比、结果枝数、结果枝底径和结果枝比。

Seed cotton yield per plant and lint yield per plant expressed larger genetic variation, indicating a great potential for further selection of yield.

结果表明，纤维品质基本稳定，6个品系的衣分也基本稳定，而单株籽棉产量、单株皮棉产量具有较大的变异，为最终实现高品质与高产的协调一致提供了可能。

JS166 was better in seed cotton yield, lint yield, boll number per plant and boll size in two years. Moreover, JS166 got lower percentage of boll shedding in 2003. 99035 obtained the same yield as the Check.

JS166在单株籽棉产量和单株皮棉产量、单株铃数、单铃重等性状上两年间表现均较好，2003年还有较低的蕾铃脱落率。99035两年间在产量性状上与对照相比略有提高，但差异并不明显。

Compared with Zhongza29, yields of super okra leaf and okra leaf hybrids were obviously lower, but semi-Okra leaf hybrids was 1.16% higher in yield of seed cotton and 2.06% in yield of lint cotton, and 10 days earlier in maturation. Semi-Okra leaf cotton hybrid, CLA 17 ZR4, which was made by super Okra leaf sterile line and Zheda strong restorer line, had a 13 % higher yield over CK.

测定发现，超鸡脚叶、鸡脚叶、中鸡脚叶、大鸡脚叶和正常叶5类杂种的生育期依次随叶面积系数增加而延长，中鸡脚叶杂种因具有适中的生育期和叶面积系数，产量和光合作用性状的综合表现最好。

The result indicates that the crazing time and the crack degree of each member for two specimens are different, but the yield failure order of each member is same, all form yield mechanism with beam end plasticity hinge and slab yield hinge line, and finally is ductile failure.

结果表明：2个试件的各构件开裂时间和裂缝程度有所不同，但各构件的屈服破坏顺序是一致的，都形成了梁端塑性铰－板屈服铰线屈服机构，最终为延性破坏。

Then establish the Estimate and analysis models of different levels potential yield. Using the tool of Visual Basic 6.0, design and impolder the estimate and analysis system of different levels potential yield with the idea of descending different levels potential yield and increasing production approach.

在此基础上，以Visual Basic 6.0为开发工具，按照逐层递减方去估算并分析单项作物和主要种植模式各层次生产潜力，并据此提出相应增产途径的基本思路，开发出层次生产潜力估算与分析系统。

The article summarized soybean yield inscapes, agronomic management factors, and natural conditions and indicated that, following improvement of varieties and agronomic management factors, it is possible to achieve super high yield in relatively small plots. It acts as an important directing role for super high yielding to achieve high yield in large area.

对大豆产量构成要素、相关栽培因素及黑龙江省自然条件进行了综合分析，结果表明，随着黑龙江省大豆品种改良与栽培技术的进步，在较小面积上实现超高产栽培是可行的，而超高产栽培对大面积高产栽培具有重要的指导意义。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。