A corn producer wants to apply a total of 350 pounds of nitrogen per acre on his field. He has spread 10 tons per acre of dry manure with an average analysis of 18 pounds of nitrogen per ton, of which only 60% of the N will be available the first year. How many additional pounds of nitrogen must he apply?

Chinese privet is a plant that is native to china. over 150 years ago, chinese privet was introduced to the united states as a fast-growing shrub that serves as an excellent privacy hedge. with no natural herbivore, chinese privet quickly established itself and spread in natural areas throughout the southeast and eastern seaboard of the united states. its dominance in these areas has jeopardized the survival of native plant species. chinese privet provides evidence that introducing non-native organisms can cause environmental damage integrated pest management strategies will not decrease chinese privet populations american gardeners can easily control the spread of chinese privet non-native plant species have type i survivorship curves

What are the pros and cons of quadrat sampling?

Physical characteristics of down syndrome