Cultural methods used to control diseases of crops;
-Using healthy planting materials
-Practicing field hygiene e.g. burning diseased crop residues
-Proper seedbed reparation
-Proper spacing to control damping off in cabbages seedling
-Heat treatment e.g. in control of ratoon stunting disease in sugarcane
-Proper drying of cereals and pulses to recommended moisture content before storage
-Use of disease resistant varieties such as Ruiru II variety of coffee.
johnson mwenjera answered the question on December 15, 2017 at 12:47
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Outline the effects of land fragmentation and sub-division.
(Solved)
Outline the effects of land fragmentation and sub-division.
Date posted:
December 15, 2017
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Answers (1)
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Differentiate between land fragmentation and land sub-division
(Solved)
Differentiate between land fragmentation and land sub-division.
Date posted:
December 15, 2017
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Answers (1)
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Explain why herbicide application is ineffective in controlling nut grass/sedge
(Solved)
Explain why herbicide application is ineffective in controlling nut grass/sedge.
Date posted:
December 15, 2017
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Answers (1)
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(a)Give two reasons for carrying out Trelishing (b)Name the most likely crop managed through Trelishing. (c)Name one other method of training crops apart from Trelishing
(Solved)
a)Give two reasons for carrying out Trelishing
b)Name the most likely crop managed through Trelishing.
c)Name one other method of training crops apart from Trelishing
Date posted:
December 15, 2017
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Answers (1)
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(i) Give one reason for adding water to a compost heap.
(ii) Give one reason for regularly turning the materials in a compost heap
(Solved)
(i) Give one reason for adding water to a compost heap.
(ii) Give one reason for regularly turning the materials in a compost heap
Date posted:
December 15, 2017
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Answers (1)
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Name any four early maturing varieties of cabbages.
(Solved)
Name any four early maturing varieties of cabbages.
Date posted:
December 15, 2017
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Answers (1)
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Name any three insect pests with biting and chewing mouthparts.
(Solved)
Name any three insect pests with biting and chewing mouthparts.
Date posted:
December 15, 2017
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Answers (1)
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Distinguish between seed dressing and seed inoculation.
(Solved)
Distinguish between seed dressing and seed inoculation.
Date posted:
December 15, 2017
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State two positive effects of winds on agriculture.
(Solved)
State two positive effects of winds on agriculture.
Date posted:
December 15, 2017
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State four reasons for carrying out primary tillage.
(Solved)
State four reasons for carrying out primary tillage.
Date posted:
December 15, 2017
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Answers (1)
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Explain each of the following: (a) Sloppy land requires little number of cultivation. (b) A field with rhizomatous weeds requires deep cultivation
(Solved)
Explain each of the following:
(a) Sloppy land requires little number of cultivation.
(b) A field with rhizomatous weeds requires deep cultivation.
(c) Irish potatoes are raised on ridges, rather than on leveled land.
Date posted:
December 15, 2017
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Answers (1)
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State two ways in which pruning tomatoes helps to control diseases in this crop.
(Solved)
State two ways in which pruning tomatoes helps to control diseases in this crop.
Date posted:
December 15, 2017
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Answers (1)
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Give three benefits of spacing maize plants widely.
(Solved)
Give three benefits of spacing maize plants widely.
Date posted:
December 15, 2017
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Answers (1)
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(Solved)
State two secondary tillage implements
Date posted:
December 15, 2017
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State three modern concepts of tillage
(Solved)
State three modern concepts of tillage
Date posted:
December 15, 2017
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Explain the different types of tillage.
(Solved)
List the different types of tillage.
Date posted:
December 15, 2017
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List four types of tilth in agriculture
(Solved)
List four types of tilth in agriculture.
Date posted:
December 15, 2017
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List five agronomic factors affecting manures and fertilizer use
(Solved)
List five agronomic factors affecting manures and fertilizer use
Date posted:
December 15, 2017
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Answers (1)
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List four period of time when fertilizer should be applied to crops
(Solved)
List four period of time when fertilizer should be applied to crops
Date posted:
December 15, 2017
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State three ways of placing fertilizers to growing crops
(Solved)
State three ways of placing fertilizers to growing crops
Date posted:
December 15, 2017
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Answers (1)