共查询到17条相似文献，搜索用时 171 毫秒
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为筛选安全高效、经济适用的青稞根腐病防治药剂,选取12种常用低毒药剂,对青稞品种藏青2000采用拌种或浸种处理进行田间防治试验,结合不同处理物候期、倒伏率、发病率、农艺性状及产量等指标,并基于千粒重、产量及根腐病发生率进行Topsis综合评价。结果表明,不同药剂处理均能有效降低根腐病发生率,其中用50%克菌丹可湿性粉剂2.40 kg/hm2拌种处理综合评价最优,施用后青稞未发生倒伏,根腐病发生率为5.00%,适宜于根腐病发病严重区域推广使用。1亿活芽孢/g的枯草芽孢杆菌微囊粒剂和50%吲唑磺菌胺水分散粒剂拌种处理的青稞根腐病发病率均为6.67%,折合产量分别5 900、5 190 kg/hm2。其中枯草芽孢杆菌微囊粒剂拌种处理的增产率最高,为8.19%,更适宜于大面积推广。 相似文献
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陇东旱塬区种植冬油菜和冬小麦后，土地闲置期可复种马铃薯，但蛴螬、金针虫等地下害虫对马铃薯为害严重，科学合理防治蛴螬、金针虫对保证马铃薯产量非常重要。为筛选出陇东旱塬区复种马铃薯田防治蛴螬、金针虫危害的低毒高效的适宜药剂，以马铃薯品种陇薯7号为指示品种，蛴螬、金针虫为防治对象，选用3种高效低毒杀虫剂对各药剂的拌种或喷沟处理进行田间防效试验，调查各处理蛴螬、金针虫虫口基数，出苗期的出苗率、受害率、安全性和成熟期的受害率、安全性。结果表明，35%噻虫嗪种衣剂、60%帮巧时种衣剂防效均达85%以上，且拌种处理和喷沟处理无显著差异。60%帮巧时悬浮种衣剂拌种和喷沟防效均好，分别为88.44%、90.36%；折合产量高，分别为16 407.41、17 066.14 kg/hm2，较空白对照分别增产16.71%、21.40%，较常规药剂对照分别增产12.07%、16.57%；保产效果好，分别为95.39%、96.20%。见于此，60%帮巧时悬浮种衣剂可作为陇东旱塬区复种马铃薯田蛴螬、金针虫防治的候选杀虫剂；并建议用48.00 mL的药量稀释10倍液后拌种薯100 kg，将525.00 mL的药量稀释250倍液，按225 L/hm2喷沟。 相似文献
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2012 — 2014年第四轮国家青稞品种区试合作点试验结果表明,在9个参试品种(系)中,甘9828综合农艺性状表现优良,折合产量4 700 kg/hm2,居第1位;甘9619综合农艺性状表现较好,折合产量为4 600 kg/hm2,居第2位,以上2个品种(系)可在甘南州青稞种植区推广种植。09YN-04折合产量为4 300 kg/hm2,居第3位,可作为搭配品种在甘南州青稞种植区种植。其余品种(系)作为种质资源保存。 相似文献
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在古浪县井河灌区试验观察了25%阿米西达悬浮剂分别与4种杀菌剂混合后,对日光温室葡萄霜霉病、灰霉病、白粉病的田间防效。结果表明,25%阿米西达悬浮剂1 500倍液+25%吡唑醚菌酯乳油3 500倍液的平均防效为93.52%,折合产量60 503 kg/hm2,较CK增产8 333 kg/hm2;其次是25%阿米西达悬浮剂1 500倍液+10%世高水分散粒剂2 000倍液的平均防效为91.53%,折合产量58 420 kg/hm2,较CK增产6 250 kg/hm2。且2种混合药剂均未发生药害,可在生产中推广。 相似文献
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马铃薯黑痣病和疮痂病是影响马铃薯品相及产量的主要土传性病害。为有效防控该类病害，选取0.3%四霉素水剂、3%中生菌素可湿性粉剂等9种药剂进行马铃薯复合拌种试验。结果表明，4个复合拌种处理对马铃薯出苗和长势均具有一定的促进作用，对马铃薯黑痣病的防效为38.10%~69.66%，对马铃薯疮痂病的防效为32.06%~61.50%。各处理马铃薯增产14.52%~40.36%，均增产显著。其中每100 kg切块种薯用2.5%咯菌腈悬浮种衣剂10 mL+0.3%四霉素水剂15 mL +0.136%赤·吲乙·芸苔可湿性粉剂2 g复合拌种处理，对马铃薯黑痣病防效为69.66%，对疮痂病防效为61.50%，增产率为40.36%，均显著高于其他处理，适于生产上推广。 相似文献
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为解决甘南州青稞田杂草滋生的问题，验证除草剂组合5%唑啉草酯乳油+20%苯磺隆可湿性粉剂在青稞田的使用效果和使用剂量，采用裂区设计，5%唑啉草酯乳油和20%苯磺隆可湿性粉剂均分别设3个用量水平，进行了2种除草剂不同剂量配比筛选试验。结果表明，5%唑啉草酯乳油1 500 mL/hm2+20%苯磺隆可湿性粉剂75.0 g/hm2兑水450 kg处理不仅对青稞田安全无药害，而且对青稞田野燕麦和阔叶杂草防除效果好，药后25 d株防效分别达到92.22%、91.87%，药后60 d鲜重防效分别达94.76%、92.33%。同时该处理的折合产量最高，为5 450 kg/hm2，较空白对照(不施用除草剂)增产32.28%。综合考虑认为，5%唑啉草酯乳油1 500 mL/hm2+20%苯磺隆可湿性粉剂75.0 g/hm2为甘南州青稞田防除野燕麦和阔叶杂草的最优除草剂组合。 相似文献
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为提升甘南青稞产业种源支撑基础,实现青稞新育品种的增产增收潜力,以青稞新品种甘青11号为试材,在甘南高寒阴湿区旱川地进行了不同施肥水平与播量对其生长及产量的影响试验。结果表明,施肥水平为尿素150 kg/hm2、磷酸二铵225 kg/hm2,播量为192.0 kg/hm2时,甘青11号青稞折合产量最高,为3 720 kg/hm2;施肥水平为尿素150 kg/hm2、磷酸二铵300 kg/hm2,播量分别为223.5、256.5 kg/hm2时,甘青11号青稞折合产量较高,分别为3 580、3 510 kg/hm2。由此可见,在施肥水平为尿素150 kg/hm2、磷酸二铵225～300 kg/hm2,播量为192.0～256.5 kg/hm2时,青稞产量高、综合农艺性状优良。综合考虑,该施肥水平和播量为青稞在甘南高寒阴湿区种植适宜的肥料配比和播量。 相似文献
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Microbiological fertilizers are an important part of environment friendly sustainable agricultural practices. A study was conducted in order to investigate seed inoculation of sugar beet (cv. Sonja) and barley (cv. Tokak), with nitrogen fixing (Bacillus polymyxa) and phosphate dissolving (Bacillus megaterium var. phosphaticum) bacteria in comparison to control and mineral fertilizer application in the green house and in the field at two sites in 1996 and 1997 in Erzurum (29o 55' N and 41o 16' E with an altitude of 1950 m), Turkey. In the green house trial bacterial inoculation of seeds increased sugar beet root and barley seed yields compared with control. B. polymyxa was more effective, but dual inoculations gave increases of 19.0 and 25.9% respectively. In the field as an average of sites and years sugar beet root yields were increased by 12.0%, 7.5% and 16.5% while barley seed yields were increased by 15.0%, 8.4% and 18.2% respectively with B. polymyxa, B. megaterium var. phosphaticum and dual applications over control treatment. Other yield and yield components were also enhanced especially by dual applications. However, increases in yield and yield components were lower than or comparable to mineral fertilizer application. The beneficial effect of bacterial inoculation was higher in well irrigated pot trials and at the site of rich clayey soils. In conclusion, microbial inoculation of seeds with Bacillus polymyxa and B. megaterium var. phosphaticum, alone or in dual combinations, may substitute costly NP fertilizers in sugar beet and barley production even in cold highland areas such as in Erzurum. 相似文献
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为了筛选出适宜在天水市种植的籽用大麻品种(系),以当地主栽品种清水大麻为对照,对引进大麻品种(系)的生育期、主要性状、产量等进行研究。结果表明,参试品种(系)出苗期基本相同。不同品种(系)种子折合产量有较大差异,沁源6号最高,达1 076.82 kg/hm2,比对照品种清水大麻增产41.17%;固原1号次之,为895.40 kg /hm2,比对照品种清水大麻增产17.39%,其余品种(系)均表现为减产。纤维折合产量沁源6号最高,达316.30 kg/ hm2,比对照品种清水大麻增产0.18%,其余品种(系)均低于对照品种清水大麻。原茎折合产量固原1号最高,达1 057.78 kg/hm2,比对照品种清水大麻增产39.39%;其次是沁源6号,为902.22 kg/hm2,比对照品种清水大麻增产18.89%。从主要性状和产量综合分析,沁源6号和固原1号表现较佳,适宜在天水市种植。 相似文献
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为探明油菜精量联合直播同步分层施肥机械作业条件下，深浅层施肥比例对油菜根系生长、植株抗倒伏能力和产量等农艺性状的影响，该研究选用“华油杂62”油菜品种作为供试作物，在施肥量600 kg/hm2条件下，以10 cm定位侧深施肥CK1和机械旋耕浅层混施CK2作为对照，设置机械旋耕浅层混施-定位侧深施肥量分层比例为1∶3(FL)、1∶1(FM)和3∶1(FH)3个施肥处理，于2020年和2021年在长江中游冬油菜区开展田间试验，研究不同分层施肥处理对油菜根系分布、耕层土壤坚实度变化、倒伏指数和产量的影响。结果表明，分层深施处理能显著(P<0.05)改善油菜根系构型并促进根系下移，平均根表面积、根体积、根干质量和主根长分别是CK1处理的1.58、1.47、1.29和1.16倍，是CK2处理的3.63、2.79、1.46和1.28倍，且土壤坚实度相较于CK1和CK2处理平均分别降低4.91%和15.25%。不同分层施肥处理的油菜主根长、根表面积、根体积和根干质量在处理间从大到小依次均为：FM、FH、FL;FH处理植株的根茎粗、倒伏角度、抗折力分别是FM处理的1.11、... 相似文献
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Drawbacks of intensive farming practices and environmental costs of N fertilizers have renewed interest in bio‐fertilizers. This study was conducted in order to investigate the effectiveness of 7 N2‐fixing bacterial isolates from various sources in sugar beet and barley production under field conditions in the higland plateau of Erzurum, Turkey (29° 55′ N and 41° 16′ E with an altitude of 1950 m) in 1999 and 2000. Seeds were inoculated with five bacterial strains of Bacillus; BA‐140, BA‐142, M‐3, M‐13, and M‐58, a strain of Burkholderia (BA‐7) and Pseudomonas (BA‐8). The bacterial strains had been demonstrated to grow in N‐free basal medium. The experiment also included applications of mineral nitrogen (N), phosphorous (P), and NP‐fertilizer as well as a control treatment without inoculation and fertilizer application. Two years of trials under field conditions showed that seed inoculation with bacterial strains significantly affected yield, yield components, and quality parameters both in sugar beet and barley. On an average of both years, seed inoculation of sugar beet with BA‐140, BA‐142, M‐58, BA‐7, BA‐8, M‐13, and M‐3 increased root yield by 13.0, 12.6, 10.5, 9.2, 8.1, 6.1, and 6.5% as compared to the control and sugar yield by 7.8, 6.3, 5.1, 4.0, 3.2, 2.3, and 5.3%, respectively. N, P, and NP applications, however, increased root yield up to 13.6, 5.3, and 21.4% and sugar yield by 6.1, 4.0, and 14.8%, respectively. Of the bacteria tested, BA‐140 and BA‐142 had yields equal to N application. All bacterial inoculations also gave higher seed and total biomass yields in barley than control plots. BA‐140 and BA‐142 were top yielding strains. In conclusion, bacterial seed inoculations especially with BA‐140 and BA‐142 may satisfy nitrogen requirements of sugar beet and barley under field conditions even in upland areas. 相似文献
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为探明不同藜麦品种在寒旱山区的适应性与丰产性,筛选出适宜种植的优良藜麦品种。以陇藜1号、陇藜4号为对照,对引进的8个藜麦品种(系)在天祝县松山镇进行种植试验。结果表明,8个藜麦品种(系)均能成熟,折合产量为1 529.02~3 391.76 kg/hm2,其中LYLM-5折合产量最高,为3 391.76 kg/hm2,较对照品种陇黎1号、陇黎4号分别增产13.79%、20.98%;青藜4号、蒙藜4号折合产量较高,分别为3 313.53、3 255.10 kg/hm2,较对照品种陇黎1号分别增产11.16%、9.20%,较对照品种陇黎4号分别增产18.19%、16.11%;黑藜1号、GSQ-9的农艺性状及产量表现最差。综合评价认为,LYLM-5、蒙藜4号适宜在天祝县松山镇范围内推广种植。 相似文献
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为了给生产上提供早熟玉米品种,促进甘肃玉米产业的可持续发展。白银金穗种业有限公司于2015年以自交系GE247-6205为母本、GEA10-DE4为父本配制杂交组合,经2 a的品比试验、2 a的甘肃省旱作玉米联合体区域试验、1 a的甘肃省旱作玉米联合体生产试验、1 a的生产示范,选育出了抗旱高产中早熟玉米杂交种金穗306。在2018 — 2019年的甘肃省旱作玉米联合体区域试验中,金穗306平均折合产量为11 741.3 kg/hm2,其中2018年平均折合产量为12 666.0 kg/hm2,较对照品种金穗3号增产3.46%;2019年平均折合产量为10 816.50 kg/hm2,较对照品种德美亚3号增产4.02%。在2019年的甘肃省旱作玉米联合体生产试验中,金穗306平均折合产量为11 232.0 kg/hm2,较对照品种德美亚3号增产4.83%。金穗306出苗至成熟118 d,株高295 cm。果穗筒型,籽粒黄色,马齿型,千粒重318 g。籽粒含粗蛋白93.2 g/kg、粗脂肪47.1 g/kg、粗淀粉722.4 g/kg、赖氨酸2.8 g/kg,容重776 g/L。抗禾谷镰孢茎腐病,中抗禾谷镰孢穗腐病,感丝黑穗病,高感大斑病。适宜在甘肃省春玉米区种植。 相似文献
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Dharam V. Pathak Manoj Kumar Sushil K. Sharma Naresh Kumar Parveen K. Sharma 《Archives of Agronomy and Soil Science》2013,59(3):287-292
Abstract Field experiments were conducted at the Regional Research Station, CCS Haryana Agricultural University, Bawal, India, to evaluate the contribution of different bioinoculants in terms of nodule number, nodule biomass, root rot incidence and seed yield in chickpea. Nodule number and biomass were positively affected by the application of bioinoculants. Plant growth promoting rhizobacteria (PGPR) alone or in combination with bioinoculants reduced plant mortality and increased seed yield of the crop. Seed yield at 50% fertilizer dose (RF) plus all the three inoculants was at a maximum during all the three years of experimentation. 相似文献