【摘 要】
:
作物营养诊断必须根据生育时期、植株部位、土壤状况和环境特点,因时因地进行。对作物的营养状况做出恰当正确的判断,是作物合理施肥的重要依据。下面以玉米为对象,从外部形
论文部分内容阅读
作物营养诊断必须根据生育时期、植株部位、土壤状况和环境特点,因时因地进行。对作物的营养状况做出恰当正确的判断,是作物合理施肥的重要依据。下面以玉米为对象,从外部形态、内部含量和土壤状况三方面进行营养诊断以及如何据此来进行合理施肥加以阐述。
Crop nutrition diagnosis must be based on the growth period, plant parts, soil conditions and environmental characteristics, due to local time. It is an important basis for crop proper fertilization to make proper and correct judgment on the nutritional status of crops. The following maize as the object, from the external morphology, internal content and soil conditions in three aspects of nutrition diagnosis and how to carry out a reasonable fertilization to elaborate.
其他文献
Aim:Adenosine monophosphate-activated protein kinase (AMPK), a vital regu-lator of glucose metabolism, may affect insulin secretion in β-cells. However, the ro
香港苏富比敲定秋拍日程香港苏富比2014年秋季拍卖会定于10月4~8日在香港会议展览中心举行,涵盖中国瓷器及工艺品、中国书画、当代文人艺术(当代水墨作品)、二十世纪中国艺术
麻育秧膜是由麻纤维和少量环保型可降解浆料采用特殊的加工工艺制造而成的环保可降解育秧基布,经过在水稻机插育秧中的实验研究,发现麻育秧膜对水稻秧苗的生长发育具有很大的
Aim: To investigate the changes in the spontaneous neuronal excitability in-duced by astragaloside Ⅳ (AGS-Ⅳ) in the cultured hippocampal network. Methods: Hip
Aim: Tumor immunotherapy aims at activating the body’s own immune system to fight an existing tumor. Effective antitumor responses require tumor antigens to be
Aim: The aim of the present study was to observe the effects of resistin on insulin sensitivity and glucose output in rat-derived hepatocytes. Methods: The rat
倒伏不仅影响水稻的产量而且影响水稻的品质。矮化育种的结果是水稻品种的抗倒性明显增强,经济系数提高。但就生物产量而言,并无大的改变。当产量达到一定程度以后,进一步高产必须在生物产量上有所突破。增加生物产量的重要途径之一是增加株高,这样就带来倒伏的危险。非株高的抗倒因素就成为水稻进一步高产的重要研究内容。在影响倒伏的各种因素中,茎秆的物理性状是影响倒伏的主要因素,茎秆的机械强度是抗倒伏最重要的育种选择