Recommended rates of potash for grazed grass are 60kg/ha and 30kg/ha of K2O for soil index 0 and 1 respectively. For soils with higher soil fertility levels no potash required.
Very large quantities of potash are removed in grass silage which must be replaced to maintain soil fertility and yield potential. The following is guide to typical potash offtakes from multi-cut silage systems.Low soil magnesium levels will affect grass yield as well as mineral balance in the animal. Apply 50-100 kg/ha MgO every three to four years at Mg index 0. Yield response is less certain at index 1 but magnesium application is justified in terms of insurance for grass yield and mineral balance for the animal, to maintain a soil magnesium index of 2.
Where lime is required and Mg levels are 0 and 1, use magnesian limestone as the most cost effective magnesium source. Where pH is satisfactory, specific magnesium fertilisers (see table below) should be used for soil improvement. Use water soluble forms of magnesium where rapid plant uptake is required.
Answer:
Cobble is a big piece of stone whereas clay is the smallest particles of earth.
Explanation:
Cobble is a small round stone used to cover road surfaces. Pebbles are the round rock fragment with a diameter of 4-64 mm which is smaller than a cobble but larger than a granule. Sand is a loose granular material that produces from the disintegration of rocks, the particles of sand is smaller than gravel. Its particle size is 0.0625 to 2 millimeters. Silt is granular material having a size between sand and clay about 0.002 to 0.05 mm. Clay is a stiff, sticky fine-grained particles that can be molded when present in wet condition and is used to make bricks, pottery, and ceramics. Clay particles are smaller than 0.002 mm in diameter.
So we can collect data about what happened in the past
Answer:
A human geographer is MOST likely to study "Where a population's activities are located and why"
Explanation:
An important branch of geography that mainly involves the study of human race is the human geography.The persons involved in the process is called human geographers. It involves study of the their origins, race, their interactions and the ideologies that affect them. They also study about how these groups of people standardise themselves in particular places. Human geography is sub divided into 5 categories namely Population geography, Medical Geography, Political geography, Economic geography, Religious geography
- Population geography is mainly concerned with the demographics that involves study, migration,population distribution,origin and growth in a particular region.
- Economic geography is study that is used to identify the the way in which different services and products are produced and distributed in the various markets.
- Medical Geography is the branch of geography that studies the patterns of how the diseases are spread..
- Religious geography studies the spread and distribution of religious groups, their culture and the built environment.
- Political geography studies and investigates the political aspects of humans.
