The article focuses on the need for farmers to justify their use of more nitrogen fertiliser than the British government recommended in its RB209 guideline. There were 20 reports to the National Farmers Union regarding non-compliance with RB209. There is a need for advisers to write down ...
Nitrogen deficiency can be caused in your garden plants by immobilization or the robbing of soil nitrogen when highly carbonaceous materials like straw, woodchips, and sawdust are incorporated into the soil. Microbes in the soil tie up the nitrogen, utilizing it to digest organic material and this...
临时召开紧急会议商讨控制近日来白糖交易迅猛可能带来的风险，期货从业人员王某是会议成员之一。会后，王某随即告知其好友李某交易所将采取严格的风险控制措施，预料白糖价格将会大跌。李某得知消息，立刻卖空其手上的白糖合约，第二天李某平仓获利8万元。在该案例中，李某应承担的法律责任是（）。
Technical nitrox is defined as any nitrogen-oxygen mixture that contains more than EAN50 (50% oxygen). It tastes like air. It breathes like air. You must use oxygen-clean regulators and cylinders, but that is no different than advanced nitrox (EAN41 to EAN50 mixtures). So why is it con...
What Is Nitrogen? Infrared is a type of radiation that is actually invisible to the human eye, but when it is absorbed it produces heat. We can detect this heat by looking atinfraredspectrums, which are emitted when the atmosphere is warmed by the sun or by lightning. ...
Why is it important to rinse the pH electrode after each sample? Why is it important to know the pH when conducting experiments to measure photosynthetic rate with 14CO2? Why is the pH of the ocean higher than the pH of lakes? Why?
If there hasn’t been a lot of rain to dilute it, the Nitrogen content in goose droppings can “burn” yellow spots into your lawn. You want a nice, green lawn – not brown. Protected. Geese are a protected species, so you have to be careful about how you encourage them to vacate ...
Figure 1. Total agricultural use and productivity of nitrogen (N), phosphorus (P) and potassium (K) fertilizers worldwide [4]. A low NUE can led to the intensive use of synthetic fertilizers to increase crop production [10]. However, in the long term, this intensive application of synthe...
Prior to purification, it is common practice to freeze infected plant material either at −20 °C or in liquid nitrogen [100,105,240,241]. The integrity of the virus particles is not obviously hampered by these procedures [242], which allow to separate harvest from purification temporally ...
One major reason the settlement on the moon is too dangerous is the difference between the atmosphere environment of the moon and Mars. Atmosphere is important because it protects humans and all other life from a continuous attack of radiation (辐射) caused by sources such as the sun. This ra...