The results showed that , fertilization of the organic - inorganic fertilizer could prolong soybean growth period , and improve plant height , branches , pods per plant , seeds per plant , weight of 100 - seed , seeds weight per plant , yield , protein and fat of soybean ; the organic - inorganic fertilizer reached significant difference or extremely significant difference compared with the other treatment ; but the bio - fertilizer reached significantly difference compared with no fertilizer , the bio - fertilizer did not reach significant difference compared with the chemical fertilizer 结果表明，施用有机无机复混肥能延长大豆生育期、提高大豆的株高、单株分枝数、单株荚数、单株粒数、百粒重、单株粒重、产量及蛋白质和脂肪含量，且与其他处理的差异均达显著或极显著水平；在以上指标中，生物有机肥处理与不施肥处理的差异均显著，但与单施化肥处理的差异不显著。
The results indicated that liangyoupeijiu showed better plant and leaf type , higher ratio of grains to leaf area and larger photosynthesis area , stronger ability of population dry matter accumulation during the period of vegetative growth especially from heading to being mature , longer leaf duration and grains - filling after heading than that of its parents and controls s ; more grains per panicle , lager all sink per plant and 1000 - grain weight 结果表明：两优培九株叶型好，粒叶比和光合面积大，营养生长期群体干物质积累能力强，始穗后叶片功能期长、籽粒灌浆持续时间较长，抽穗期至成熟期的干物质增量明显强于其亲本和对照组合；穗颈节间维管组织比亲本及对照发达；两优培九单株总库容量大，每穗实粒数多，千粒重较大。
Compared with their own controls , sulfur and organic fertilizer fertilizations under copper stress and the fertilizations at low sulfur and organic fertilizer rates under cadmium stress increased the spike numbers , kernel numbers per spike and the 1000 - kernel weights of wheat at the maturing stage thus raising the yields of wheat and the highest yield increment appeared in treatment t5 ; under cadmium stress , the fertilizations at high sulfur and organic fertilizer rates did not result in great changes in wheat 与各自对照相比，铜胁迫下施硫和有机肥的处理与镉胁迫下低施硫和有机肥的处理增加了成熟期小麦的穗数、穗粒数和千粒重，提高了籽粒产量，其中以t - 5处理增产幅度最大；镉胁迫下高施硫和有机肥的处理则变化不大。
These plant - type characters of " yedan 12 " resulted in an improving crown - canopy structure which favoring conditions of aeration and solar penetration , so suitable enlargement of planting density would enable maize plants to extending their active photosynthetic area which promoted bigger ears with more kernels and then attained high yield of grains per plant 掖单12这种株型特点改变了植冠构造，更有利于通气条件和阳光透射，这样适当增大植株密度将使玉米植株扩大活性光合作用面积，促成大穗、穗粒数更高，因此单株籽粒产量更高（表9 ） 。
Combination of additive effects and interaction effects can account for over 50 % of genotypic variation in spikelet number per spike ( sns ) and spike number per 50cm row ( snr ) , and over 40 % in fertile spikelet number per spike ( fsns ) , 1000 grain weight ( kgw ) and ear length ( el ) , over 30 % in plant height ( ph ) , over 20 % in sterile spikelet number per spike ( ssns ) and less than 10 % in grain weight per 50cm row ( gwr ) and grain number per spike ( gns ) 加性效应和互作效应联合起来，可以解释群体总小穗数和50cm行长穗数变异的50以上，结实小穗数、千粒重和穗长变异的40以上，株高的30以上，不孕小穗数的20以上，而只能解释50cm行长粒重和穗粒数变异的10以下。
The results showed that : ( 1 ) a very significant increase in grain weight per plant ( gwpp ) of super high - yielding combinations mainly results from more panicles per plant ( ppp ) . ( 2 ) the order of contribution to gwpp was panicles per plant , filled grains per panicle ( fgpp ) , 1000 - grain weight ( kgw ) , spikelets per panicle ( spp ) , plumping degree ( pd ) filled grain rate ( fgr ) . ( 3 ) gwpp has positive correlation with ppp and fgpp at 0 . 01 significant level , with fgr at 0 . 05 significant level . ( 4 ) on the background of big panicle hybrid rice gwpp has positive partial correlation with ppp , kgw and pd at 0 . 01 significant level , which means any increase in these yield components can increase yield 结果表明： ( 1 )不同产量水平大穗型组合产量的差异主要受单株穗数差异的影响； ( 2 )产量构成因素对产量的作用大小依次为：单株穗数每穗实粒数千粒重每穗总粒数充实度结实率； ( 3 )单株穗数和每穗实粒数与产量正相关达极显著水平，结实率与产量正相关达显著水平： ( 4 )单株穗数、千粒重和充实度与产量的偏相关为正，且达到极显著水平，说明在大穗的基础上，单株穗数的增加、千粒重和充实度的提高可以使产量显著增加。
The genetic correlations of six agronomic characters in some indica - japonica crosses were analyzed using mixed - linear model method . the results indicated that there existed correlations to a certain degree among the measured traits . the phenotypic correlations of plant height with filled grain or seed setting were significant . panicle length with total grains or filled grain , total grains with filled grain or seed setting , and filled grain with seed setting were the same . for panicle length with plant height or seed setting , total grains with filled , and for filled grain with seed setting , genetic correlations were also significant . further analysis , the result showed that genetic correlations between the measured traits were mainly due to domimant effects . in addition , additive correlations were significant for grain weight with panicle length or total grains or filled grain , and for total grains with filled grain 用混合线性模型方法对籼粳亚种间杂交组合农艺性状的相关性进行了遗传研究，结果表明：被测性状之间大都存在一定程度的相关.其中，株高与实粒数、结实率，穗长与总粒数、实粒数，总粒数与实粒数和结实率，以及实粒数与结实率之间具有显著的表型相关，总粒数与实粒数，实粒数与结实率，以及穗长与株高和结实率之间具有显著的遗传相关.进一步的分析表明，性状之间的遗传相关大多归因于显性效应，而粒重与穗长、总粒数和实粒数之间，以及总粒数与实粒数之间还具有极显著的加性相关
According to the experimental data of droplet size 、 particle spectrum range 、 droplet cone shape 、 flow rate 、 cover area and cover area rate which obtained through changing the pressure of power sprayer and the nozzle diameter in greenhouse ， this paper made comparative analysis on atomizing performance in same pressure and different nozzle type between same nozzle type and different pressure . the conclusion is that : the ejection rate and the droplet cone shape change with the variation of pressure and nozzle diameter ， average particle diameter decreases obviously and particle quantity increases obviously with the increase of pressure and decrease of nozzle diameter . these results will lay experimental foundation for precise spraying 、 low pollution and highly effective operation 本文根据温室内动力喷雾机压力与喷嘴孔径的变化影响雾滴大小、粒谱范围、雾锥形状、流量、覆盖面积及覆盖面积率的试验数据，对相同压力下不同喷嘴型号和相同喷嘴型号时压力不同时的微粒化性能进行对比分析和研究，得到如下结论喷出量与雾锥形状随着压力和喷嘴孔径大小变化而变化；平均粒径随着压力的增加和喷嘴孔径的减小而明显减小；粒数随着压力的增加和喷嘴孔径的减小而明显增多，为精喷量、低污染、高防效的防除作业奠定了实验基础。
The results showed that the correlation degree of ear length and the number of grains per ear or grain weight per ear or 1000 grain weight was all the maximum in the correlation order , but that of effective ear numbers per plant and the number of grains per ear or grain weight per ear or 1000 grain weight was all the minimum 结果表明：在关联度和关联序中，大麦的穗粒数、穗粒重、千粒重分别与穗长这一性状的关联度最大，关联序中穗长全排在首位；而穗粒数、穗粒重、千粒重分别与有效穗数这一性状的关联度最小，关联序中有效穗数全排在末位。
At the same time ， the fluid atomizing mathematical model of particle diameter and particle quantity were established ， and also the analogy calculation of particle diameter and particle quantity were carried out . the feasibility is verified that the fluid atomizing mathematical model can make prediction on the atomizing performance of pesticide . these will provide scientific foundation and deinsectication technology for the development of precise agriculture 同时研究开发了粒径与粒数的液体微粒化计算模型，并对喷雾机和烟雾机进行了粒径与粒数的模拟计算，验证了液体微粒化计算模型对农药微粒化性能预测的可行性，为精准农业的发展提供了科学依据和防除技术。
