Q1 A is very thin tube in which a liquid can move against the forces of gravity
Q2 The estimated radiant energy used for evapotraspiratin is
Q3 High level of water in the soil leads to low level of in the soil
Q4 An optimum temperature for most crops and micro organisms is called
Q5 The root environment is otherwise known as
Q6 Atleast there are about. elements considered necessary for plant growth
Q7 The nutrients are absorbed from the soil into the plant through
Q8 The major source of phosphorus in the soil is
Q9 In taking soil samples for analysis, the sampling depth should be
Q10 is that part of soil water that can be absorbed by plant roots
Q11 If excess water is unable to drain away, root become short of and fail to function
Q12 Water holding capacity of a soil depends on
Q13 Moisture enter plant by the process of
Q14 The percentage of water in the soil is approximately
Q15 The percentage of organic matter in the soil is approximately
Q16 The percentage of carbondioxide in the atmosphere is
Q17 is the last stage of decomposition
Q18 The symbol used to describe soil reaction is
Q19 A is an artificially prepared manure with a variable concentration of plant food
Q20 Fertilizers are available in forms
Q21 Complete fertilizers contains elements
Q22 Example of complete fertilizer is
Q23 A is any material that containsone or more of fertilizer element
Q24 The term used to describe the percentage of active ingredient in compound fertilizer is
Q25 Foliar fertilizer application method is particularly used for
Q26 Urea fertilizer contains % of Nitrogen
Q27 There are essential elements requored by plants
Q28 Nitrogen is a mobile element and therefore deficiency symptoms shows up firstin the part of the plant
Q29 Electric fixation of nitrogen in the soilcan be achieved through
Q30 The major source of phosphorus in the soil is
Q31 In taking soil samples for analysis, the sampling depth should be
Q32 is that part of soil water that can be absorbed by plant roots
Q33 If excess water is unable to drain away, root become short of and fail to function
Q34 Water holding capacity of a soil depends on
Q35 Moisture enter plant by the process of
Q36 is the process of gas exchange in the soil
Q37 The percentage of water in the soil is approximately
Q38 The percentage of organic matter in the soil is approximately
Q39 The percentage of carbondioxide in the atmosphere is
Q40 is the last stage of decomposition
Q41 The symbol used to describe soil reaction is
Q42 is an identification of the acidity or basicity in the soil
Q43 could be defined as any substances capable of yielding hydrogen ions, which is a proton, when dissolved in water
Q44 Soil acidity scale range of 7 means
Q45 CEC means
Q46 A is a straight path opened along a baseline in the area to be study
Q47 A person who conduct soil survey is as soil
Q48 The principal result of a soil survey is a
Q49 can be defined as the progressive developmentof an organism
Q50 is very important in the supply of radiant energy to plant
Q51 The estimated radiant energy used for photosynthesis is
Q52 The estimated radiant energy used for evapotraspiratin is
Q53 High level of water in the soil leads to low level of in the soil
Q54 An optimum temperature for most crops and micro organisms is called
Q55 The root environment is otherwise known as
Q56 Atleast there are about. elements considered necessary for plant growth
Q57 The nutrients are absorbed from the soil into the plant through
Q58 is caused by shortage of water in the plant tissue
Q59 Deficiency of water in plant causes what is known as
Q60 A is very thin tube in which a liquid can move against the forces of gravity
Q61 the behaviour of soil when pressure is applied especially at variuos moisture content it I referred to as
Q62 the portion of the soil which is usually about 2mm away from the root surface is termed the
Q63 the attraction of water molecules to other water molecule is called
Q64 the attraction of soil water to soil particles is called
Q65 the last stage of organic matter decomposition is
Q66 the sum total of all the exchangeable cations that the soil can absorb is referred to as
Q67 the term which shows the percentage of active ingredient in a fertilizer I called
Q68 soil develops from all kinds of rocks which are all refrred to as
Q69 The following crops can fix atmospheric nitrogen in the soil except
Q70 All are functoins of phosphorus except
Q71 All are factors affecting the solubility and fixation of phosphorus except
Q72 One of these is pottasium fertilizer
Q73 The tools used in taing soil samples from the field include the following except
Q74 The total pore space per volume of soil is referred to as
Q75 the phyical condition of the soil in relation to ease of tillage and permeability I referred to as
Q76 the sytematic arrengement of soils into group or categories on the basis of their observed properties is called
Q77 the process whereby there is gas exchange in soil
that ensures oxygen sufficiency and prevent carbon dioxide toxicity is
known as
Q78 which of the following process is involved in the release of plant nutrients from organic matter
Q79 the decomposition of organic matter by heterotropic bacteria to release amino acids and amides is called
Q80 the ability of the soil to resist large fluctuations in soil PH and the cationic and anionic nutrients I referred to as
Q81 a system in which arable crops are grown in spaces between rows of planted woody shrub or tree legume is known as
Q82 soil with PH value3-4 are term to be
Q83 the sum of the concentrations of active acidity
which is represented by H+ ion concentration in the soil solution is
called
Q84 soils in which the sodium content or Na saturation is greater than 15% is known as
Q85 the productivity of acid soil can be improved tremendouly by application of
Q86 in saline soil the osmatic pressure of soil solution is
Q87 fertilizer that is applied to crop after emergence is referred to as
Q88 nitrogen is loss from the soil throught the process of
Q89 excess fertilizer especially phosphates and nitrogen that find their ways into rivers leading to
Q90 which of the following bacteria is associated with symbiotic nitrogen fixation
Q91 ammonium is transformed to nitrite by group of bacteria called
Q92 nitrite is transformed into nitrate by
Q93 which of the following is the principal K-fertilizer
Q94 All the following are conditions that affect soil air composition except
Q95 All the following are liming materials except
Q96 All are exchangeable cations except
Q97 Another name for inorganic is
Q98 The principal K-fertilizer is called
Q99 Nitrite is transformed to nitrate by group of bactia called
Q100 Ammonium is transformed to nitrite by group of bacteria that are called
Q101 Which of the following is associated with symbiotic fixation of nitrogen
Q102 Which of the following is associated with non-symbiotic fixation of nitrogen
Q103 The release of ammonium-nitrogen from soil
organic matter decomposition by heterotropic soil organisms through
series of enzymic digestion of complex protein compunds is known as
Q104 Which of the following processes leads to loss of nitrogen from the soil
Q105 Ammonium is transformed to nitrite by39. Excess
fertilizer – nutrients especially phosphates and nitrogen that find
their ways to lakes and rivers leads to
Q106 Fertilizer that is applied to the crop after emergence is referred
Q107 When fertilizer is spread uniformly over a surface of the land before or after planting it is said to be
Q108 Ammonium sulphate (N2), Urea (N), super phosphate (P205), Mariate of potash (K20) these are all examples of
Q109 the quantity of fertilizer that should be applied per unit area of farm land for a given crop is referred to as
Q110 Liming is done inorder to
Q111 any material that is added to the soil for the purpose of neutralizing soil acidity is referred to as
Q112 Soils in which the sodium content or Na saturation is greater than 15% is known as
Q113 A soil solution with PH value of 9 -10 are term to be
Q114 The resistance to a change in PH is referred to as
Q115 Soil with PH value 3-4 are term to be
Q116 the term used to describe the percentages of active ingridient in a compound fertilizers is referred to as
Q117 The last stage of decomposition of organic matter is
Q118 All area environmental factors that affect growth and development of plant
Q119 In photosynthesis, all the following are required except