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随着各种不同抗旱增产剂在农业生产中的广泛应用,为进一步摸索青山旱地龙——抗旱增产剂的增产效果,根据内蒙古亿利科技实业股份有限公司委托,进行马铃薯施用青山旱地龙肥效试验,我们将试验点设在杭锦旗赛马场,具有代表性的旱作马铃薯试验,具体试验如下: 相似文献
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腐植酸尿素对冬小麦增产效果及氮肥利用率的影响 总被引:3,自引:0,他引:3
以冬小麦为试验材料,研究腐植酸尿素对其产量构成因素、产量及氮肥利用率的影响。试验结果表明:腐植酸尿素能显著提高冬小麦产量、千粒重及氮肥利用率。施用腐植酸尿素I型和腐植酸尿素II型与农民习惯施肥相比,冬小麦产量分别增加753.2、756.9 kg/hm~2,千粒重分别提高1.3、1.4 g,氮肥利用率分别提高11.97、11.60个百分点;与普通BB肥相比,冬小麦产量分别增加897.7、894.0 kg/hm~2,千粒重分别提高0.5、0.6 g,氮肥利用率分别提高10.11、9.74个百分点。 相似文献
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花生增产灵是一种采用生化、络合法按花生生长发育需要而生产的新型高效叶面肥(主要成分:生化黄腐酸复合物)。为了探索花生增产灵对促进花生开花,加快果针入土和膨大,增加植株分枝,提高叶片叶绿素含量和结果数、产量的影响,我们在学院试验场进行了试验。 相似文献
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Yuzhou Lan Aakash Chawade Ramune Kuktaite Eva Johansson 《International journal of molecular sciences》2022,23(6)
Global climate change is threatening wheat productivity; improved yield under drought conditions is urgent. Here, diverse spring-wheat lines (modern, old and wheat-rye introgressions) were examined in an image-based early-vigour assay and a controlled-conditions (Biotron) trial that evaluated 13 traits until maturity. Early root vigour was significantly higher in the old Swedish lines (root length 8.50 cm) and introgressed lines with 1R (11.78 cm) and 1RS (9.91 cm) than in the modern (4.20 cm) and 2R (4.67 cm) lines. No significant correlation was noted between early root and shoot vigour. A higher yield was obtained under early drought stress in the 3R genotypes than in the other genotype groups, while no clear patterns were noted under late drought. Evaluating the top 10% of genotypes in terms of the stress-tolerance index for yield showed that root biomass, grains and spikes per plant were accountable for tolerance to early drought, while 1000-grain weight and flag-leaf area were accountable for tolerance to late drought. Early root vigour was determined as an important focus trait of wheat breeding for tolerance to climate-change-induced drought. The responsible genes for the trait should be searched for in these diverse lines. Additional drought-tolerance traits determined here need further elaboration to identify the responsible genes. 相似文献
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报道了将甲烷磺酰氯合成装置的负压由4kPa降至100Pa,压力控制阀设在合成装置尾气出口,合成反应的水全部循环使用,甲烷磺酸氯的收率提高10%以上。 相似文献
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本文针对武汉乙烯装置的实际情况,探讨影响乙烯收率的主要因素,通过研究实施裂解炉深度控制,原料优化,反应器、冷箱、塔器操作优化等有效措施,最终实现提高乙烯收率的目的。 相似文献
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烯效唑培育油菜壮苗及其增产效应 总被引:3,自引:0,他引:3
连续两年的田间试验结果表明:烯效唑用于处理油菜幼苗,可以提高油菜苗床利用率,防止“高脚苗”、“弯颈苗”,使油菜叶片增厚,叶色浓绿、根茎变粗、根系发达、干物重增加;可以提高油菜抗冻和抗病能力;可以防止油菜徒长,增强抗倒伏能力;增加有效分枝和角果数,产量增加。在油菜幼苗三叶期,喷施50~100mg/kg浓度的烯效唑药液60kg/667m2效果较好。 相似文献