KNEC KCSE Agriculture Paper 1 Question Paper / 2015 KCSE Kirinyaga West

State four human factors that influence agriculture.

Name two areas of study that make agriculture to be regarded as a science.

State two positive effects of high temperature in crop production.

(a). What is a seedbed? (1mk)
(b) Outline four factors that influence number of cultivation operations when preparing a seedbed
(2mks)

State four advantages of using organic manures over inorganic fertilizers.

Name two processing varieties of tomatoes.

A farmer is advised to apply 40 kgs P2 05 per hectare of a crop under maize. He has access to single
Super Phosphate fertilizers containing 20% P2 05 (11/2 mks
(a) Calculate how much single super phophpate (ssp) fertilizer he should apply in two hectare (2Ha) of his Land. (Show your working) (2mks)
(b) Why is it advisable to apply phosphate fertilizers at planting time (1mk)

(a) What is forage defoliation? (1mk)
(b) State three ways by which a farmer can make efficient use of forage crops (3mks)

List four benefits of agroforestry tree species to a farmer.

(a)Give two examples of fixed costs in agricultural production (1mk)
(b) List two sources of agricultural credit to a farmer (1mk

Name two chemicals used in treatment of water.

What is the objective of pricking out in nursery management?

State two practices that may prevent damage of seedlings during transplanting.

Name four post harvest practices done in the farm on cereals crops.

Name two types of records that a poultry farmer should keep.

State two main categories of crop pests.

Give two maintenance practices carried out on sprinklers.

Name two weeds that create unconducive working environment to a farmer.

The diagram below and labelled T illustrates a field pest. Study the diagram carefully and answer the
questions that follows
(a Identify the pest (1mk)
(b) State a non-chemical method used to control the pest you have identified above (1mk)
(c) Name two vegetable crops damaged by the pest above (2mks)
(d) At what stage of crops growth is the pest more damaging (1mk)

The curve below illustrates the law of diminishing returns as used in agricultural economics. Study the curve\and answer the questions that follows:-
(a) What happens in each of the three zones I, II, and III in relation to fertilizers input to beans output
(3mks)
(b) Amongst the three zones illustrated above, which zone is the rational zone of production . Give a
reason (2mks)

The diagram below illustrate crop diseases. Study the diagrams carefully and answer the questions that follows :-
(a) Identify the crop disease illustrated in diagrams
P: ………………………………………………………………………………………………………………. (1mk)
Q: ………………………………………………………………………………………………………………. (1mk)
(b) Give the caustitive agent for each of the above diseases illustrated above (2mks)
P: ………………………………………………………………………………………………………………. (1mk)
Q: ………………………………………………………………………………………………………………. (1mk
(c) State one cultural method used in the control of diseases illustrated by Q (1mk)

The table below gives information for Mzee Kogi’s farm for the year ending 31-12-2014

The farm also has Ksh. 5000/= as cash in bank , 300/= as cash at hand. It was owed 3,000/= for sale of \\ beef and 5,000/= for milk sales. The farm owed Unga Feeds Ltd 5,000/= for concentrates and KGGCU 2,500/= for farm tools acquired on credit .
(i) Draw a balance sheet for the farm for the year ending 31-12-201 (4mks)
(b) Was the business solvent or insolvent? for your answer (1mk)

(a) Discuss the various factors that influence soil erosion 10mks)
(b) Describe the benefits of a land title deed to a farmer (5mks)
(c) State the precautions a farmer should undertake when collecting soil samples from a crop field
(5mks)

(a) State and explain the various marketing functions undertaken in agriculture (10mks)
(b) Discuss the factors that are considered in drawing a farm plan (10mks)

(i) Discuss production of sorghum under the following sub-headings (4mks)
(a) Ecological requirements (4mks)
(b) Land preparation and planting (4mks)
(c) Pest and disease control (4mks)
(ii) Discuss the factors that determine the choice of tools and implements used in tillage operations
(6mks)