Answer
- Temperature; should be between 15-27oC;warm temp. Required for root zone & cool temperature required for aerial shoots.
- Relative humidity; – Requires high humidity which lower transpiration rate.
- Light intensity; requires high light intensity for root production
- Oxygen supply; Plenty of O 2 required for root formation.
- Chemical treatment; rooting hormones e.g. auxins promote production of the roots
- Leaf area; Soft words required a lot of leaves for photosynthesis, hardwood cuttings produce roots better within leaves;
- AGRICULTURE FORM 4 PAPER 1 REVISION KIT MODEL22082022001Post Views: 7
- Give four reasons why land should be prepared early in readiness for plantingReasons for preparing land early. To give vegetation time to dry up and decompose to organic matter. Allow proper gaseous exchange, thus co2 is replaced by oxygen which is necessary for germination. Give enough time to other subsequent operations to be done. Give way to early planting. Virus-free.www.avast.com Post Views: 1
- List three particulars of the land owner which are included in the land title deedParticulars in the title deed. Name Id card number Signature /company seal Condition of ownership e.g mortgage for loan Virus-free.www.avast.com Post Views: 0
- Name three ways of carrying out overhead irrigation in the farmWays of carrying out overhead irrigation. Use of sprinklers Use of watering cans Use of hose pipes Virus-free.www.avast.com Post Views: 3
- Outline four indicators of well rotten compost manureIndicators of well rotten compost manure Light weight Brown in colour Has the smell of forest soil Original nature of the material is not noticeable. Virus-free.www.avast.com Post Views: 89
- Give four advantages of rotational grazingAdvantages of rotational grazing Controls diseases / parasites Better utilization of pastures/ excess forage is conserved / sold Pasture is given time to regenerate. Allows various management practices to be carried out e.g weeding. Ensures even distribution of animal waste. Virus-free.www.avast.com Post Views: 0
- List four ways through which soil PH influences crop productionInfluence of soil pH Influences the type of crop to be grown in an area. Influence availability of plant nutrients. Low pH influences prevalence of certain diseases and pests eg nematodes. Influences the activities of soil micro-organisms in the soil. Virus-free.www.avast.com Post Views: 0
- Give two reasons for carrying out each of the following operations in the land. a) Rolling b) LevelingReasons for Rolling Prevent small seeds from being blown away by wind. Increase seed- soil contact. Levelling Prevent easy germination of small seeded crops Facilitate uniform germination of seeds. Virus-free.www.avast.com Post Views: 1
- Give four characteristics of variable inputsCharacteristics of variable inputs. They are added to fixed inputs during production. Are allocated to specific enterprises. Their cost depends on quality and quantity used. They change in quantity with the level of production. Their cost value is used to calculate gross margin of farm enterprises. Virus-free.www.avast.com Post Views: 0
- State three ways by which plant nutrients may be lost from the soilWays through which plant nutrients are lost Leaching Plant uptake Volatilization /burning Virus-free.www.avast.com Post Views: 1
- Give four benefits of practicing organic farming.Benefits of practicing organic farming It is environmental friendly/ no pollution. It produces healthy products The produce fetch higher prices in the international market. It uses locally available material/cheap. It is easy to carry out. It is sustainable/ conserves soil. Virus-free.www.avast.com Post Views: 0
- Give two activities carried out during hardening off tomato seedlingsActivities carried out during hardening off. Gradual removal of shade. Gradual reduction of watering frequency Reduction of the amount of water used Virus-free.www.avast.com Post Views: 23
- List down four types of financial books farmers should keepTypes of financial books. Journal Ledger Cash book Inventory. Virus-free.www.avast.com Post Views: 2
- Outline four factors that affect the effectiveness of a pesticideFactors affecting the effectiveness of pesticides. Weather conditions Persistence of the pesticide Formulation of the pesticide Mode of action of the pesticide Mode of action of the pesticide. Concentration of the pesticide in relation to stage development. Virus-free.www.avast.com Post Views: 0
- Give four factors that affect the quality of silageFactors that affect the quality of silage. Type of forage used. The stage of harvesting the forge Moisture content of forage The leaf – stem ratio of forage Speed of ensiling Degree of compaction Virus-free.www.avast.com Post Views: 3
- Differentiate between soil texture and soil structureDifference between Soil texture: Fineness or coarseness of soil mineral particles while. Soil structure: Is the arrangement of soil particles into groups or aggregates and shapes. Virus-free.www.avast.com Post Views: 0
- Give three reasons why seed selection is important in the establishment of cropsImportance of seed selection. Helps to obtain seeds with a high germination potential Reduces the chances of pest disease attack. Helps to obtain high quality yields. Makes it easy to identify seeds that are suited to a given ecological zone. Virus-free.www.avast.com Post Views: 2
- State four factors that affect elasticity of demandFactors that affect elasticity of demand Availability of substitutes. Degree of necessity Number of uses a product can be put to Time lag Promotion of a commodity Supply Virus-free.www.avast.com Post Views: 1