Ca(NO3)2 canopy spraying during physiological fruit drop period has a better influence on the tree c

来源 :农业科学学报:英文版 | 被引量 : 0次 | 上传用户:bambooasu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This study aimed to provide a theoretical basis for adopting suitable cultivation measures to tackle calcium(Ca) deficiency in citrus leaves. The Newhall navel orange(Citrus sinensis Osbeck) canopy was sprayed with 20.0 mmol L~(-1) of Ca(NO_3)_2 during ph
其他文献
目的:研究黄连素联合维生素E烟酸酯治疗冠心病合并血脂异常的疗效、安全性和经济性。方法:比较78例冠心病合并血脂异常患者口服黄连素0.5g,2次/d,+维生素E烟酸酯0.1g,2次/d(治疗组)。与辛
Fusarium sp.strain ZH-H2 is capable to degrade high molecular weight polycyclic aromatic hydrocarbons(HMW-PAHs),smooth bromegrass(Bromus inermis Leyss.) can als
目的:观察一步法经皮球囊扩张术治疗严重二尖瓣狭窄的中、远期疗效。方法:回顾分析一步法经皮经房间隔穿刺球囊扩张术治疗风湿性心脏病二尖瓣狭窄的资料。结果:59例经皮二尖瓣狭
旱播水管直播稻田杂草种类多、数量大、出草期长,多数田块是禾本科杂草、莎草科杂草和阔叶杂草混生。水稻播后苗前用丁·恶混剂对杂草有良好的防除效果。水稻苗期用二氯喹
使用BCM-101高渗透剂6ml/667m^2和12mL/667m^2,或F-101高渗透剂12g/667m^2和24g/667m^2,与10%草甘膦铵盐水剂较常规用量降低20%即640ml/667m^2和降低40%即480ml/667m^2混用,其除草效果较1
Although the phosphate 1(PHO1)gene family has been implicated in inorganic phosphate transport and homeostasis,the underlying mechanism of this gene in the stra
目的:探讨颈动脉粥样硬化与冠心病程度的关系。方法:对285例可疑冠心病患者行冠脉造影检查,以B型超声仪检查颈动脉内中膜厚度(IMT)。用冠脉病变支数表示冠心病程度。采静脉血检查
Despite the improvement in cultivar characters and management practices,large gaps between the attainable and potential yields still exist in winter wheat of Ch
目的探讨青少年唇腭裂患者心理健康状况及影响因素。方法选取70例青少年唇腭裂患者作为研究组,随机选取50名正常青少年作为对照组,采用自行设计的问卷对患者的心理状况进行调
农田杂草是影响农作物丰产与丰收的重要限制因素。农田化学除草是农田杂草防除中最重要的手段,具有省工、省时、高效、快捷的优点,是提高劳动生产效率,发展高效与优质农业的重要