The advantages of plantain at high population density include potential to increase yields significantly , better crop cycle planning to harvest during best market conditions , optimum use of land because one hectare of high density plantain can produce as much as 3 - 5 hectares of conventional planting , high production of good quality corms used as seed for the next cycle and intensive management resulting in a lower incidence of pests , diseases and weeds 大蕉密植的优势在于：有显著的增产潜力，有较好的生产周期以适应最佳市场条件，能高效利用土地（密植1公顷相当于通常的3 ~ 5公顷） ，可生产出可作为下季种子的大量优质球茎，集约管理可减少病、虫、草害的发生。
The results indicated : ( 1 ) during the jointing stage of winter wheat , the differences of catalase activity among different measures of soil water utilization are significant in shallow soil , in which the catalase activity of furrow planting with straw mulch is the highest and that of row - spacing - reduced and close planting is the lowest ; ( 2 ) the trends of catalase activity versus depth are almost the same for different treatments , looking like an inverse s ; ( 3 ) for furrow growing without mulch , the activity of soil catalase in the furrow is higher than that in the ridge ; ( 4 ) soil catalase activity reflects some effects from different techniques of soil water utilization and may be used as a indicator for micro - eco - environment in the fields 初步分析得出： ( 1 )冬小麦拔节期，采用不同土壤水利用技术的冬小麦田浅层土壤过氧化氢酶活性差异明显，以沟播不盖秸秆处理的过氧化氢酶活性最强，缩行密植处理的最弱； ( 2 )土壤过氧化氢酶活性随深度的变化趋势大体一致，呈反s形； ( 3 )沟播不盖秸秆处理沟中土壤过氧化氢酶活性明显高于垄上； ( 4 )土壤过氧化氢酶对于田间微生态环境具有指示作用，在一定程度上反映了土壤水利用技术对微生态环境的影响。
From trial of different density and collocate , it can be known that planting with narrow line and proper density can improve light penetration of soy bean colony and space distribution and has a better canopy structure , enhance colony solar utilize rate , thereby , increases soy bean colony productive ability and gains a higher yield 摘要通过不同密度和宽、窄行距配置试验可知，大豆在保持合理群体密度下，实行窄行密植，可改善大豆植株群体的透光性和叶面积的空间分布，具有较好的冠层结构，提高了群体光能利用率，从而提高大豆的群体生产能力，获得较高的产量。
The trim hedge , the grass - plot before the door , the little flower - bed bordered with snug box , the woodbine trained up against the wall , and hanging its blossoms about the lattice ; the pot of flowers in the window ; the holly , providently planted about the house , to cheat winter of its dreariness , and to throw in a semblance of green summer to cheer the fireside ; all these bespeak the influence of taste , flowing down from high sources , and pervading the lowest levels of the public mind 宅前树篱齐整，绿草茵茵，花圃精巧，四周黄杨密植；忍冬缘墙而上，其花绽放，星星点点，缀于窗棂；窗台饰有盆花，居所四周植有冬青，聊以消解寒冬之孤寂，室内炉火熊熊，虽非夏日，宅前院后绿意浓浓，亦使居者倍感惬意；凡此种种，皆孕高雅之情趣，自绅士名流，至草根百姓，泽被万民。
The results showed the silage corn keduo 8 laid particular stress on vegetable growth , it had larger lai and higher biomass , there were bigger changed range between lai and biomass ; the dual purpose corn shandan 310 laid particular stress on reproductive growth , it had smaller lai and lower biomass , there were a littler effect of density on lai and biomass 结果表明，青贮型玉米科多8号偏重于营养生长，其叶面积指数、干物质积累量大，二者随密度的变化其变幅较大；粮饲兼用型玉米陕单310偏重于生殖生长，其叶面积指数、干物质积累量较小，密度对其影响较小，耐密植。
