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<=Diploma in Agriculture module 1 : Principles of crop production I and Soil science past paper July 2022
Explain six principles of cation exchange
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Questions List:
1. Differentiate between budding and grafting.
2. Explain self pollination with respect to: i) types; (ii) significance
3. Distinguish between vertical and horizontal disease resistance.
4. Highlight seven measures that reduce pests and discases in stored grains
5. The fertilizer recommendation for a given crop is given as 100 kg P2O5/ha. Determine the amount of di-ammonium phosphate (18:46:0) that can be applied in one acre of land
6. Describe striga weed (Striga hermonthica) under the following: (i) characteristics; (ii) control measures
7. Outline the procedure of transplanting agroforestry seedlings
8. Explain four benefits of determining plant population in crops
9. Highlight the conditions that should be observed during seed certification.
10. Explain five losses that are incurred during silage making process.
11. Highlight ten causes of low crop production in Kenya
12. Explain five roles of living organisms in soil formation
13. Explain five factors that influence availability and utilization of soil moisture.
14. Highlight six effects of climate on soil formation.
15. A soil sample has a bulk density of 1.40 g/cm3 and porosity of 45%. Determine the particle density
16. Highlight seven properties of solonchak soils.
17. The following equation shows a chemical weathering process: #CO_2+H_2O overset(rarr)(larr) Xoverset(rarr)(larr) 2H++Yoverset(rarr)(larr)H^++Z# (i)Identify the substances denoted by letters X, Y and Z. (ii) Explain the process represented by the equation
18. Explain six principles of cation exchange
1. Differentiate between budding and grafting.
2. Explain self pollination with respect to: i) types; (ii) significance
3. Distinguish between vertical and horizontal disease resistance.
4. Highlight seven measures that reduce pests and discases in stored grains
5. The fertilizer recommendation for a given crop is given as 100 kg P2O5/ha. Determine the amount of di-ammonium phosphate (18:46:0) that can be applied in one acre of land
6. Describe striga weed (Striga hermonthica) under the following: (i) characteristics; (ii) control measures
7. Outline the procedure of transplanting agroforestry seedlings
8. Explain four benefits of determining plant population in crops
9. Highlight the conditions that should be observed during seed certification.
10. Explain five losses that are incurred during silage making process.
11. Highlight ten causes of low crop production in Kenya
12. Explain five roles of living organisms in soil formation
13. Explain five factors that influence availability and utilization of soil moisture.
14. Highlight six effects of climate on soil formation.
15. A soil sample has a bulk density of 1.40 g/cm3 and porosity of 45%. Determine the particle density
16. Highlight seven properties of solonchak soils.
17. The following equation shows a chemical weathering process: #CO_2+H_2O overset(rarr)(larr) Xoverset(rarr)(larr) 2H++Yoverset(rarr)(larr)H^++Z# (i)Identify the substances denoted by letters X, Y and Z. (ii) Explain the process represented by the equation
18. Explain six principles of cation exchange
