The
result of the water analysis for Ca, Mg, k, P, N02 B, FC, C, 2 So4
for irrigation water in Ekoli Edda is
provided in tables2.
The
value of Nitrogen in the irrigation water is 41.8,72.01, 56.84 and 86.0mg/l in
Achiogbo, Oloekoli, Iminika and Iyianyaoji irrigation water respectively. The
result shown that the nitrate content is higher than standard (0.10mg/l). The
large value of nitrate will contributed large amount of Nitrogen for whatever
crop that will be planted, when nitrogen is low in the soil, the high level
will help to amend the soil Nitrogen.
Cadmium content of the
underwater was 0.41,0.84, 1.4 and 0.21mg/L in Achiogbo, Oloekoli, Iminika and Iyianyioji
respectively the result of the analysis show that the cadmium is lower than the
standard 0.010mg/L). The low level makes it ideal for irrigation purpose.
Obi. I. U. 2000 Statistical Method of Detecting
Difference between Treatment Means and Research Methodology in Laboratory and Field
Experimental. A. Express Publishers Limited, 3 Obolio Road Nuskka Nigeria
The water Contain1 68.0,81.0,131.81 and
152.1mg/L of calcium in Achiogbo,.
Oloekoli, Iminika and Iyi Anyaoji respectively. The result show that the water
is suitable for surface compared with the standard (0-20mgll).
The magnesium content are 5.7,6.2,5.9 and
51mgll for Achiagbo, Oloekoli, Iminakaa and Iyianyaoji respectively. The value
show that the water is good for irrigation when compared to the standard value
(0.5mg/L Magnesium is also used in reducing soil acidity.
Get This Complete Project Material Here
The value of potassium in Ekoli Edda surface
water is 28.91,20.1,38.4 and 72.0mgll for Achiogbo Oloekoli with the standard
value for irrigation which is 0.2mg/l) Potassium encourages the development of
stronger root system in plants. This helps to prevent lodging and increase the
resistance o plants to bacteria and fungi disease.
|
This will reduce the cost of acquiring
Nitrogen fertilizer also in calculating the nitrogen to be added to the soil
the nitrogen level in the irrigation water should be put into consideration.
The value of boron in the irrigation water
45.1,51.4, 21.0 and 18.1mg/L in Achiogba Olekoli, Iminika and Iyianyaoji surface
water respectively. The result showed that boron contents of the water is
within the standard value required for irrigation 10.1.03mgll for sensitive
plants, below (0.3-0.6mgll) for semi-tolerant plants and below )1-0kmgll) for
tolerant plants. Boron is a micro-nutrient which is taken in by the plant
in form of borate anions. It is
important in protein synthesis, it aids in Nitrogen and carbohydrate
utilization, it facilitate the development of root and formation of fruits and
seeds.
4.2 HEAVY METAL CONTENT RATION OF THE WATER
SOURCE
The result of the heavy metal content for zinc (zn)
cobalt(co) cadmium(Cd) and lead (Pb0) of the underground water of Ekoli Edda is
presented in table 3. The value of zinc was 60.2, 41.6, 92.1 and 89.4mg/L. In
Achiogba, Oloekoli, Iminika and Iyianyaoji irrigation water respectively. It
shows there is low zinc content compared to the standard value (2.0mg/L).
The water does not require treatment
before used as irrigation water source, because the level is safe for
irrigation purpose.
The cobalt content in the irrigation water
was 3.1,4.2,5.8 and 6.8 mg/L in Achiogba, Oloekoli, Iminika and Iyianyioji irrigation
water respectively the Cobalt value of the water rate was high compared with
the standard (0.50mg/L). Therefore, it needs treatments before using it for
irrigation purpose, Cobalt is essential for leguminous crops it is essential
for the symbolic fixation of nitrogen
in the legumes.
The type of Nitrogen fixation is reduced
when cobalt is deficient the soil.
|
|
The surface water contained 0.37,0.84,0.71
and 0.25mg/L of lead is contained in Achiogba, Oloekoli, Iminika and Iyianyioji
respectively based on the standard it slow that the water is this location s
contain very low lead compared with standard (5.0 mg/L). Therefore the water is
safe for irrigation without the fear of lead contamination and poisoning.
CHAPTER FIVE
5.1 SUMMARY
The result of the Chemical analysis
of water source for irrigation in Ekoli Edda shows that the solube salt is
slightly low, but moderate in some areas, eg Iminika in Ekoli Edda of Ebonyi
state has the EC value of 9.00 Mg/L. The sodium value (Na) of the underground
water in Ekoli Edda is good. Therefore the use of this water for irrigation
will not pose any problems. It is noted that the sources of water used for
irrigation good management practices will not lead to salinity because all the
parameters measured fall within the standard value recommended for irrigation.
The RSC value of the sauces of water
in Ekoli Edda is unfavorable (<1.25). This value will pose problems when
used for irrigation. The elemental toxicity of the sources of water in Ekoli
Edda L G A falls within the standard.
The cobalt value of the underground
water is high the cadmium content is favourable low. And the quantity of lead
is low on the whole the quality of underground water of Ekoli Edda is ideal for
irrigation purposes.
5.2 Conclusion
The source of water in Ekoli Edda is
good for irrigation the elemental composition of the water compares favourable
with standard value for irrigation.
5.3 Recommendation
The values of the parameters measured in the underground
water indicates that the underground water in Ekoli Edda if used for irrigation
under proper management practices will be favourable for irrigation because all
the parameters measure compared favourable with the standard recommended
irrigation water. This means that the underground water in Ekoli Edda is good
for irrigation it is therefore recommended for irrigated agriculture in
Edda
REFERENCES
Anikwe M. A. N, C.I Okonkwo and N.I Aneikwe (1999).
Effect of Changing Land Use on Selected Soil Properties in Ekoli Edda Agroecological
Zone Southeastern Nigerian. Environmental Education and Information 18 (1)
79-84
Ayres, R, S and D. W, Westcot. (1976). Water Quality for
Agriculture Irrigation and Drainage paper No. 29. Food and Agriculture Organization
of the United Nations Rome.
Brady N.C. and R.R-well (1990). The Nature and Properties
of soils Twelfth Edition, 441 – 42 Macmillan Publishing Co. Inc.
Bremmer J.M. (1965). Total Nitrogen. Inc.A. Black
led). Methods of Soil Analysis, part 11. A.M. Soc. Agron. 9:1149 – 1178.
Hoffman, G.S., R.S. Ayres, E.J. Doering and BL. M.C.
Neal; (1980), Salinity Irrigated Agriculture. In Design and Operation of Farm, Irrigation
System, M.C. Jensen, Edition ASAE Monograph No. 3 St. Joseph, M.I.829.
IITA (1979). Selected Method for Soil Plant Analysis, Manual
Series 1 International Institutes of Tropical Agriculture. Manual Series No. 1
Ibadan, 62pp
Joe B.K. (2003) Fundamentals of soil fertility, first
Edition: 108.
Nelson, D.W. and L.E. Summers, (1982). Total C. Organic
Matter: In Al page, R.H Mitter and D.R. Keaney (ed). Methods of Soil Analysis part
2, Chemical and Microbiological Properties (2nd ed. Agronomy
9.539-579).
Page, A, R.H. Miller and D.R. Keeney (1982) Method of
Soil Analysis part 2 (second edition) American Society of Agronomy, Madison,
Wisconsin, USA.
Rhoades, J.D. (1982) Solube salts in: page A.2. (ed)
Method of Soil Analysis, part 2. Chemical and Unbiological Seconded. Agronomy
series No; 9, ASA, SSA, Madison, Wisconsin USA. Pp 122.
Stewart, B. A and D.R. Nelson 1990. Irrigation of
Agricultural Crops American Society of Agronomy: 1,218