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排序方式: 共有107条查询结果,搜索用时 93 毫秒
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Elliott ML Des Jardin EA Batson WE Caceres J Brannen PM Howell CR Benson DM Conway KE Rothrock CS Schneider RW Ownley BH Canaday CH Keinath AP Huber DM Sumner DR Motsenbocker CE Thaxton PM Cubeta MA Adams PD Backman PA Fajardo J Newman MA Pereira RM 《Pest management science》2001,57(8):695-706
Cotton and snap bean were selected for a multi-year, multi-state regional (south-eastern USA) research project to evaluate the efficacy of both commercial and experimental bacterial and fungal biological control agents for the management of damping-off diseases. The goal for this portion of the project was to determine the viability and stability of biological agents after application to seed. The biological seed treatments used included: (1) Bacillaceae bacteria, (2) non-Bacillaceae bacteria, (3) the fungus Trichoderma and (4) the fungus Beauveria bassiana. Seed assays were conducted to evaluate the following application factors: short-term (< or = 3 months) stability after seed treatment; quality (i.e. isolate purity); compatibility with chemical pesticides and other biocontrol agents; application uniformity between years and plant species. For the bacterial treatments, the Bacillaceae genera (Bacillus and Paenibacillus) maintained the greatest population of bacteria per seed, the best viability over time and the best application uniformity across years and seed type. The non-Bacillaceae genera Burkholderia and Pseudomonas had the least viability and uniformity. Although Beauveria bassiana was only evaluated one year, the seed fungal populations were high and uniform. The seed fungal populations and uniformity for the Trichoderma isolates were more variable, except for the commercial product T-22. However, this product was contaminated with a Streptomyces isolate in both the years that it was evaluated. The study demonstrated that Bacillaceae can be mixed with Trichoderma isolates or with numerous pesticides to provide an integrated pest control/growth enhancement package. 相似文献
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以美国佐治亚洲广为分布的红壤和沙质灰土以及棉花和玉米为试验材料,进行Aspartame生产废液(BST,下同)与传统氮肥尿素、硫酸铵的温室盆栽和恒温土培对比试验。结果表明,BST是很好的氮肥资源,等同于或某种程度上优于尿素和硫酸铵。对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca,Mg,K等养分和生长发育的影响与常规氮肥相似。但废液中有机态氮的水解以及向硝态氮的转化比尿素要快一些。尿素和BST比硫酸铵更适于在红壤和沙质灰土上施用。 相似文献
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A 13-year-old male neutered Persian crossbred cat was evaluated for hindlimb paresis, ataxia and urinary incontinence that had been progressing over the previous 3 months. Neurologically, the cat had thoracolumbar spinal cord deficits and a myelogram detected the presence of a mass compressing the thoracic spinal cord. A hemilaminectomy was performed to excise the soft tissue mass, subsequently identified histologically as a psammomatous meningioma. The cat regained ambulatory function and continence following surgery until a recurrence of paresis and ataxia 36 months later. A second myelogram suggested local recurrence of the tumour, which was confirmed by histological examination of the tumour after its removal at a second laminectomy. The cat again regained normal neurological function, until a further recurrence 16 months after the second surgery. The meningioma was surgically debulked a third time and the cat regained ambulation and continence postoperatively. This case demonstrates the successful use of repeated surgical resection in the management of a recurrent spinal meningioma in a cat. The cat was ambulatory and continent at a follow-up examination 63 months after the initial presentation. 相似文献
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Julia P. Sumner BVSc MACVSc Diplomate ACVS Robert J. Hardie DVM Diplomate ACVS Diplomate ECVS Jamie N. Henningson DVM PhD Diplomate ACVP Randi Drees DMV Diplomate ACVR Diplomate ECVDI Mark D. Markel DVM PhD Diplomate ACVS Dale Bjorling DVM MS Diplomate ACVS 《Veterinary surgery : VS》2012,41(6):655-663
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