沼液替代化肥对土壤肥力与胡柚品质的影响

为研究沼液施用对胡柚林地土壤肥力和果实品质的影响,探寻适宜的沼液施用条件,采取大田施肥试验,对梯度化沼液施用条件下的胡柚林地土壤酶活性、土壤肥力、土壤重金属含量,及胡柚果实品质等进行对比研究.结果表明,沼液施用可提高胡柚林地土壤中的营养元素和有机质含量,提升土壤蔗糖酶活性和土壤pH值.各梯度下的沼液施加未导致林地土壤中...     

常山县食用菌产业现状与发展对策

介绍常山县食用菌产业概况,指出其发展优势为具有食用菌种植的传统及产业发展基础;制约因素有栽培总量偏小、产业链不够健全,市场价格波动大、生产规模不稳定,技术人员少、推广力量薄弱,企业实力差、龙头带动不明显。提出发展对策措施为：明确指导思想和发展目标,加大宣传力度、激发生产积极性,加快科技创新、提高产业科技支撑水平,培育主体、提升产业化水平,发展品牌、拓展品牌销售渠道。     

常山胡柚无公害栽培技术

1　病虫草害防治技术1 1　防治原则　遵循“预防为主 ,综合治理”的植保方针 ,从桔园生态系统出发 ,综合运用各种防治措施 ,创造不利于病虫草有害生物滋生和有利于各类天敌繁衍的环境条件 ,保持桔园生态系统平衡和生物多样性 ,优先采用农业防治、物理防治和生物防治 ,必要时使用化学防治 ,将各类病虫草害控制在允许的经济阈值以下和农药残留量降低到规定标准的范围内。1 2　农业防治　桔园修剪时 ,及时剪除病虫枝和枯枝。冬季应适时清园 ,以降低桔园病虫越冬基数 ,减轻来年病虫发生。1 3　物理防治　利用害虫的趋光性 ,在其成虫发生期 ,…     

常山胡柚胚型的初步观察

检视常山胡柚种子４６９７粒，结果表明：单胚１８７８粒，占４０．０％；多胚２８１９粘，占６０．０％。受检１１个单株和４个人工授粉组合的种子，均未发现全部是单胚或全部是多胚的单株或组合，表明常山胡柚种子为单多胚混合型。     

常山碱对小鼠巨噬细胞功能的影响

探讨常山碱对小鼠腹腔巨噬细胞免疫活性的影响。采用中性红试验和MTT法分别测定常山碱对巨噬细胞吞噬中性红作用及其代谢功能的影响。结果显示,常山碱浓度在0.01-5.00μg/mL对小鼠巨噬细胞吞噬中性红有较好的促进作用(P0.05),对巨噬细胞代谢有显著的促进作用(P0.05)。结果提示,常山碱可以提高小鼠的免疫功能。     

Study on Acute Toxicity Test of Anticoccidial Oral Liquid from Dichroa febrifuga in Mice

The purpose of this study was to evaluate drug safety of Dichroa febrifuga oral liquid (DFOL),and the acute toxicity test of DFOL was established in mice based on modified Karber's method and dose increasing method,and histopathological examination had been applied to explore the main target organs of its toxic injury.The dosage was determined by preliminary experiment,a total of 60 Kunming mice were selected and divided randomly into one control group and five experimental groups,DFOL was administered by intragastric gavage at five different doses (1.00,1.40,1.96,2.74,3.84 g/(kg·BW)),and observed for 7 days continuously,the LD₅₀ value and 95% confidence interval of LD₅₀ were determined by the modified Karbers method.It showed that LD₅₀ was 2.0961 g/(kg·BW) and its 95% confidence interval was 1.7414 to 2.5429 g/(kg·BW).The liver and kidney of some mice in 1.96,2.74 and 3.84 g/(kg·BW) drug groups appeared severe edema,congestion and white necrotic foci by necropsy.Acute liver injury was found in mice by histopathological examination and the liver cell showed degenerative change,kidney damage showed renal congestion,interstitial edema,renal tubule epithelial cloudy swelling and degeneration.The liver was damaged seriously in the main organ and the main toxic organ of DFOL was liver.The test showed that the toxicity of DFOL was lower and it had high security in a conventional doses for clinical anti-coccidiosis application,however,high dose,long course of medication had toxicity,and the toxicity of DFOL should be analyzed and evaluated combining with long-term toxicity tests and many other inspection results.     

夏红橘柚果实营养成分及保健功能评价

夏红橘柚是继常山胡柚后在衢州市选育出的橘柚类自然杂交新品种,经过十多年的选育和系统观察,表现遗传性状稳定,丰产性好、果实外观漂亮、耐贮藏、抗寒性强,综合经济性状好,通过示范推广已成为龙游的柑橘类地方特色品种。2010年12月,     

盐碱地区园林绿化的好树种——海州常山

<正>海州常山,别名臭梧桐、泡花桐、泰山红五星、八角梧桐、追骨风、后庭花、香楸等,为马鞭草科大青属落叶灌木或小乔木。海州常山花序大,花果美丽,花果期长且恰逢"十一"国庆节期间,是优良的秋季观花、观果树种。丛植、孤植均宜,是布置园林景观的良好材料。海州常山不但观赏效果好,而且还有吸尘、降噪、抗污染、吸收毒气的效能,是厂矿、道路绿化的优良树种。