Duvick DN (1997) What is yield? In: Edmeades GO, Ba¨ nziger M, Mickelson HR, Pen˜ a-Valdivia CB, eds. Developing Drought and Low N-Tolerant Maize. Proceedings of a Symposium, March 25-29, 1996, CIMMYT, El Bata´ n, Mexico. International Maize and Wheat Improvement Center (...
federal and municipal bonds or international government debt, as well as specific sectors such as investment grade and high yield corporate bonds, mortgages, and emerging market debt. Commoditiy ETFs Commodity ETFs seek to track the price of physical assets such as gold, oil and wheat. ...
A convenience yield is the benefit or premium associated with holding an underlying product or physical good, rather than the associated derivative security or contract. Sometimes, as the result of irregular market movements such as aninverted market, the holding of an underlying good or security ma...
federal and municipal bonds or international government debt, as well as specific sectors such as investment grade and high yield corporate bonds, mortgages, and emerging market debt. Commoditiy ETFs Commodity ETFs seek to track the price of physical assets such as gold, oil and wheat. ...
用作名词(n.) What he said is a pure hypothesis. 他所说的纯粹是假设。 Soppose you should contradict yourself,what then? 假设你说了,那又怎么样呢? 用作形容词(adj.) That left a question of what the ancestor of the arthropods looked like. ...
Every commodity index on the market has a different makeup in terms of what commodities it is composed of. The Refinitiv/CoreCommodity CRB Total Return Index, for example, consists of 19 different types of commodities, including, cocoa, soybeans, gold, crude oil, and wheat.1 ...
Xinjiang has already become one of the 6 major fruit producers of the world. It’s also a key producer of quality wheat thanks to its ample sunshine and snow water. In 2021, the total wheat yield hit 6.4 million tons. Xinjiang is China’s largest production base of high-quality cotton,...
Wheat is Canada's largest crop with most of the production in the western Canadian prairie provinces of Manitoba, Saskatchewan and Alberta. Since wheat pro... BD Mccallum,RM Depauw - 《Canadian Journal of Plant Science》 被引量: 166发表: 2008年 Statistical spring wheat yield forecasting for ...
Corn plants respond to higher VPD by closing their stomata, which helps preserve water, but also reduces the rate at which plants take in CO2, which lowers the rate of photosynthesis and hurts yield. Greater evaporative demand also increases the rate at which the soil water supply is depleted...
What'sthefirstthingthatcomesintoyourmindwhenyouthinkofwheatstraw(麦秆)?Mostpeoplewouldprobablyjustseeitasawasteinafarmer'sfield.However,WuCui,anintangibleculturalinheritor,canturnthestrawintobeautifulandeye-catchingfunctionalartworks.Theearlieststraw-weaving(草编的)productswerediscoveredatHemuduCulturalRuins,aNeolith...