State three ways by which plant nutrients may be lost from the soil Ways through which plant nutrients are lost Leaching Plant uptake Volatilization /burning Virus-free.www.avast.com Post Views: 6 Tell your friends about this content: Related posts: Outline four indicators of well rotten compost manure Give four advantages of rotational grazing List four ways through which soil PH influences crop production Give two reasons for carrying out each of the following operations in the land. a) Rolling b) Leveling Give four characteristics of variable inputs Outline four factors that affect the effectiveness of a pesticide Give four factors that affect the quality of silage Differentiate between soil texture and soil structure Give three reasons why seed selection is important in the establishment of crops The diagrams below illustrate field management practices. Study them carefully and answer the questions that follow State and explain any five cultural method of controlling weeds Outline six ways in which wind negatively affects agricultural production Explain eight factors that encourage soil erosion Explain the harvesting of bulb onions Explain four factors that influence the depth of planting crops