施肥料的
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The effect of azotobacter fertilizer on living activity, soil fertility, yield, total nutrient and crop quantity is studied at the different level of using nitrogen .in the calciform soil by the rape potted plant biology analogue experiment, in order that the best scope of valid applying azotobacter fertilizer is determined. It can offer theoretic basis for searching ways of biology controlling to high yields and qualities, optimization directions for products of special compound fertilizer and valid using.
本文通过油菜盆栽生物模拟试验,研究了在不同施氮水平下,石灰性土壤上固氮菌肥料对土壤微生物活性,养分以及油菜的生物产量、全量养分和品质的影响,旨在确定固氮菌肥料有效应用的最佳土壤氮素范围,为探求油菜作物高产优质的生物调控途径及专性生物复合肥的优化配比提供理论依据。
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The research on effect of variant fertilizer application stage and the interation on the yield and quality of glutenous wheat.
经过不同施肥时期及不同肥料种类的配合对强筋小麦品质和产量的影响试验,试验结果表明:施同等量的肥料,施肥时期不同对小麦产量和品质有直接关系,以拔节期追施N、P、K肥产量最高,7708.5kg/hm2。
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2Soil column leachate experiment shows, soil texture and soil section form are the main factors affecting the nitrate leaching; in soil organic fertilizer produce a nitrate leaching process, during five-month experiment, nitrate content has be increasing in leakage solution, organic fertilizer applying decrease the pH and increase the electric conduction of leakage solution, there is positive action between nitrate content in leakage solution and electric conduction, which shows that nitrate-N accumulation during organic fertilizer applying is one of the main factors for soil salification; for decrease the leaching of the nitrate-N in soil, in sandy moisture soil the best amount of organic fertilizer should be 7.5~ 15 t·hm~(-2), in Loamy moisture
在小麦-玉米轮作体系上投入化肥氮300kg·hm~(-2)N和有机肥22.3t·hm~(-2)折N261.2kg·hm~(-2,能使农田氮素收支达到平衡,在兼顾环境效益的基础上获得了较高的产量效益。并通过肥料效应函数和硝态氮累积效应函数进一步预测最佳施肥组合,即化肥氮施用量为N226.5kg·hm~(-2),有机肥用量为39.9t·hm~(-2)折N466.8kg·hm~(-2,其中小麦季施化肥氮105.85kg·hm~(-2)N、有机肥30t·hm~(-2)折N351kg·hm~(-2,玉米季施化肥氮120kg·hm~(-2)N,有机肥9.9t·hm~(-2)折N115.8kg·hm~(-2。同时,磷素平衡分析表明,在施用有机肥的基础之上,化学磷肥的施用量应适量的减少或不施。
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Effect of different basal-dressing application methods on soil ammonia volatilization was studied by using forced-draft enclosure in winter wheat fields.The results indicated that fertilizer placement considerably influenced ammonia volatilization.
用密闭室强制通气装置对冬小麦不同基肥施用方式(表施、深施和表施结合灌溉)下的土壤氨挥发损失进行了研究,结果表明:肥料在土壤中的位置对氨挥发损失的影响非常显著。
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After two rice-wheat rotations, 11%–13% of applied labeled N remained in 0-60 cm soil (mostly in the 0-20 cm soil); leaching of labeled urea applied in rice season was little (only 0.6%–1.1% of the applied N accumulated in 20-60 cm soil), and the leaching of fertilizer N occurred in wheat season and the beginning flooding period of the next rice season; 47%–54% of applied fertilizer N was lost and ammonia emission and nitrification-denitrification were the main pathways.
水稻季施用的肥料氮向耕层以下移动很少,20—60 cm土层中累积肥料氮仅占施氮量的0.6%~1.1%,主要发生在小麦季及水稻泡田时期,肥料氮损失占施氮量的47~54%,氨挥发和硝化反硝化气态损失是主要途径。
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A fertilizer leak-preventing device is developed to stop fertilizer leakageon the stirring-knife-reel adjusting fertilizer distributor,especially severe when operatedwith granulated fertilizers such as urea during the non-working state of the distributor.
针对使用搅刀-拨轮式排肥器的悬挂施肥播种机在施尿素等颗粒状肥料时,非工作状态所发生的肥料严重漏失问题,研究设计了阻止漏肥装置。
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The result of fertilizer management of Sutian8 shows: what use the fertilizer of early stage handled, the plant height, ear height, stem thickness, leaf area etc. were better than early stage apparently, did not apply fertilizer to hand. Fertilized in lump sum on early stage, although expression was sent early for strong sprout, had also formed high-yield group, but later stage had the phenomenon of premature senility; Early stage did not be applied fertilizer, even if in late stage mend the fertilizer of equal quality could not also remedy. Corn ear output and quality would not raised unless the fertilizer applied at prophase (45%-60%), metaphase and anaphase had a certain proportion.
苏甜八号不同时期肥料运筹试验结果表明:施用前期肥的处理,无论是在株高、穗高、茎粗、叶面积等植株性状上,还是在果穗、产量性状上均显著优于前期不施肥的处理,前期一次性重施肥,虽表现为壮苗早发,也形成了丰产群体,但后期有早衰现象,前期不施肥,即使中后期补施同等数量的肥料也无法弥补因前期不施肥所造成摘要的影响,只有前、中、后按一定比例且适当提高前期肥的用量(45%一6006)才有利于提高鲜果穗产量和商品品质。
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Can change existing pearl to breed mode only, make full use of pearl mussel photographs the character that feeds plankton, form do not apply fertilizer and the new pattern that " day raises pearl ", walk along the pearl that can develop continuously to breed road.
只能改变现有珍珠养殖模式,充分利用珍珠蚌摄食浮游生物的特性,形成不施肥料而&天养珍珠&的新模式,走可持续发展的珍珠养殖道路。
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The total amount of N loss through ammonia volatilization was N 0.37~3.04kg hm^(-2), accounting for1.31%~3.69% of the total N applied to Winter Radish The total N loss through ammonia volatilization enhanced with the increase in N application rate (p.05) and ex-pressed as y=0.1576e(superscript 0.0146x) and y=0.1826e(superscript 0.0112x) respectively.
不同施氮处理,春季累计氨挥发量为N0.67~5.16kg hm^(-2),占施入肥料N的0.74%~2.24%;秋季累计氨挥发量为N0.37kg~3.04kg hm^(-2),占施入肥料N的1.31%~3.69%。红壤旱地春秋二季氨挥发量均随施N量的提高而指数递增,其关系式分别为:y=0.1576e(上标 0.0146x)和y=0.1826e(上标 0.0112x)。
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The result indicates that with organic fertilizer and inorganic nitrogen fertilizer can obviously increase the leaf dimension coefficient, enhance the content of chlorophyll and soluble protein, improve the SOD activity of flag leaf, depress the content of MDA, postpone the speed of decrepitude of flag leaf,; The status with high content of chlorophyll and leaf dimension coefficient lasts longer with organic fertilizer than with inorganic nitrogen fertilizer and the flag leaf have longer functioning time; the combination of inorganic nitrogen fertilizer and organic fertilizer can substantially postpone the speed of decrepitude of winter wheat.
在国内持续时间最长的肥料长期定位(28年)试验条件下,研究了肥料持续施用下冬小麦花后叶面积系数等生理指标的变化,结果表明施用有机肥、氮肥,可明显增大小麦的叶面积系数,增加叶绿素含量和可溶性蛋白含量,提高旗叶的SOD活性,降低丙二醛的含量,延缓旗叶的衰老;施用有机肥较施用氮肥,叶绿素含量及叶面积系数持续高值时间长,旗叶有更长的功能期;长期氮肥与有机肥配施能显著延缓小麦衰老。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。