INFLUENCE OF SEED QUALITY AND SOIL FERTILITY

MANAGEMENT ON THE PRODUCTIVITY OF RICE (ORYZA SATIVA
L.) IN THE GUINEA SAVAN...
INTRODUCTION


Seed quality is the degree of excellence of a seed when compared to an

acceptable standard seed and satis...
OBJECTIVES
The

present study was to determine how seed
quality and/or optimum organic/inorganic soil
amendments influen...
2. MATERIALS AND METHODS
2.1 Site Description
 The trial was conducted at the experimental field of the Savannah
Agricult...
TABLE 1 EXPERIMENTAL TREATMENTS
FACTORS

1. Seed quality

Farmers seed
(FS)

Certified seed5
(CS)

2. Soil amendments
Cont...
RESULTS

6
TABLE 2. SEED QUALITY AND SOIL AMENDMENT ON RICE PARAMETERS
FACTORS

Seed
quality

Control

Panicle
length
cm
18.5

53.8

...
TABLE 3 EFFECT OF SEED QUALITY ON SOME PARAMATERS
Seed
quality

Days to
50%
flowering

Plant
height
(cm)

Tiller
count

Pa...
Grain yield (kg/ha)

FIG. 1. EFFECT OF SEED QUALITY ON GRAIN YIELD IN
2011 AND 2012.

2350
2300
2250
2200
2150
2100
2050
2...
Grain yield (kg/ha)

FIG. 2. EFFECT OF SOIL AMENDMENT ON GRAIN
YIELD IN 2011.
3500
3000
2500
2000
1500
1000
500
0
Control
...
Grain yield (kg/ha)

FIG. 3. EFFECT OF SOIL AMENDMENT ON GRAIN YIELD
3500
3000
2500
2000
1500
1000
500
0

Control

HRR

HR...
Grain yield (kg/ha)

FIG. 4. RELATIONSHIP BETWEEN NUMBER OF
SEEDS AND GRAIN YIELD.
4000
3500
3000
2500
2000
1500
1000
500
...
Grain yield (kg/ha)

FIG. 5. RELATIONSHIP BETWEEN 1000 SEED WEIGHT
AND GRAIN YIELD.
4000
3500
3000
2500
2000
1500
1000
500...
CONCLUSION 1
 This

experiment was set up to determine the influence
of seed quality and soil fertility management on the...
CONCLUSION 2
Recommended

rate of inorganic fertilizer at 250 kg NPK/ha
plus 120 kg urea/ha as basal and top-dressing app...
THANK YOU

16
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Th2_Influence of Seed Quality and Soil Fertility Management on the Productivity of Rice (Oryza Sativa L.) in the Guinea Savanna of Ghana

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3rd Africa Rice Congress
Theme 2: Intensification and diversification
Mini symposium: Enhancing productivity through improved soil and fertilizer nutrient use
Author: Dzomeku, et.al.

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Th2_Influence of Seed Quality and Soil Fertility Management on the Productivity of Rice (Oryza Sativa L.) in the Guinea Savanna of Ghana

  1. 1. INFLUENCE OF SEED QUALITY AND SOIL FERTILITY MANAGEMENT ON THE PRODUCTIVITY OF RICE (ORYZA SATIVA L.) IN THE GUINEA SAVANNA OF GHANA W. Dogbe,1 I.K. Dzomeku,2 B. Salifu Yahaya,2 Aliyu Siise,1 Elijah Ofosu Krofa1 and S.A. Awuakye2 1CSIR-Savanna Agricultural Research Institute, Tamale, Ghana; 2University for Development Studies, Tamale, Ghana 1 Paper presented at the 3rd Africa Rice Congress Yaoundé, Cameroon, 21–24 October 2013.
  2. 2. INTRODUCTION  Seed quality is the degree of excellence of a seed when compared to an acceptable standard seed and satisfies genetic purity, good health and physiological purity for viability and vigour.  Poor quality seed gives poor seedling vigor, non uniform growth and maturity and prone to pest and diseases (Ellis et al., 1995). Good quality seeds have high return per unit area as the genetic potential of the crop can be fully exploited.  Planting good quality seed is often taken for granted, as farmers resort to using their seedlot with resultant yield loss.  Rice is a heavy feeder and extremely sensitive to the amount and balance of nutrients in the soil,  A suitable combination of organic and inorganic source of nutrients was 2 reported to give sustainable production (Reganold et al., 1990; WARDA, 2002).
  3. 3. OBJECTIVES The present study was to determine how seed quality and/or optimum organic/inorganic soil amendments influence yield components and grain yield of Gbewaa rice in the Guinea savannah ecology. 3
  4. 4. 2. MATERIALS AND METHODS 2.1 Site Description  The trial was conducted at the experimental field of the Savannah Agricultural Research Institute (SARI), Nyankpala, near Tamale, in the Northern Guinea Savanna ecological zone during 2011 and 2012 cropping seasons. Nyankpala lies on altitude ±183m, latitude 09º 25’ 41’’N and longitude 0º 58’ 42’’W.  Rainfall pattern is unimodal with mean annual rainfall of 10001200mm fairly distributed from April-November.  The area has high temperature in the day time and cool temperature at night with mean monthly minimum of 23.4ºC and maximum of 34.5ºC and a minimum RH of 46% and maximum of 4 76.8%.
  5. 5. TABLE 1 EXPERIMENTAL TREATMENTS FACTORS 1. Seed quality Farmers seed (FS) Certified seed5 (CS) 2. Soil amendments Control HRR (125kg/ha NPK + 60kgN/ha) CODE OF TREATMENTS T1 T2 HRR+1.5 t/ha Compost RR (250kg/ha NPK + 120kgN/ha) RR+3 t/ha Compost T3 T4 T5 Control HRR (125kg/ha NPK + 60kgN/ha) HRR+1.5 t/ha Compost T6 RR (250kg/ha NPK + 120kgN/ha) RR+ 3 t/ha Compost T7 T8 T9 T10
  6. 6. RESULTS 6
  7. 7. TABLE 2. SEED QUALITY AND SOIL AMENDMENT ON RICE PARAMETERS FACTORS Seed quality Control Panicle length cm 18.5 53.8 21.7 HRR (125kg/ha NPK + 60kgN/ha) 19.8 77.0 23.3 HRR+1.5 t/ha Compost 21.0 84.3 23.7 RR (250kg/ha NPK + 120kgN/ha) 23.0 109.5 24.6 RR+3 t/ha Compost 23.0 118.0 24.9 Control Farmers seed Soil amendment 2011 17.0 64.5 21.0 21.0 70.8 23.6 22.0 84.8 24.2 RR (250kg/ha NPK + 120kgN/ha) 24.0* 115.3 25.3 * RR+ 3 t/ha Compost 25.0* 127.5 * 25.9 * Certified HRR (125kg/ha NPK + 60kgN/ha) seed* 7 HRR+1.5 t/ha Compost No. of seeds 1000 seed per panicle wt(g)
  8. 8. TABLE 3 EFFECT OF SEED QUALITY ON SOME PARAMATERS Seed quality Days to 50% flowering Plant height (cm) Tiller count Panicle number Panicle weight (g) 2011 Farmers seed 93 58.7 13.95 12 24.56 Certified* seed LSD 97 63.1 15.85 14 26.68 2.0 3.88 0.891 0.75 1.190 2012 Farmers seed Certified* seed 98 76.8 17.85 15.6 24.31 110 87.8 19.85 17.8 26.238
  9. 9. Grain yield (kg/ha) FIG. 1. EFFECT OF SEED QUALITY ON GRAIN YIELD IN 2011 AND 2012. 2350 2300 2250 2200 2150 2100 2050 2000 1950 Farmers Certified Farmers Certified seed 2011 seed 20111 seed 2012 seed 2012 9 Seed quality
  10. 10. Grain yield (kg/ha) FIG. 2. EFFECT OF SOIL AMENDMENT ON GRAIN YIELD IN 2011. 3500 3000 2500 2000 1500 1000 500 0 Control HRR HRR + 1.5 RR ton/ ha compost Soil amendment RR + 3 ton/ ha compost 10
  11. 11. Grain yield (kg/ha) FIG. 3. EFFECT OF SOIL AMENDMENT ON GRAIN YIELD 3500 3000 2500 2000 1500 1000 500 0 Control HRR HRR + RR RR + 3 1.5 ton/ ton/ ha ha compost compost Soil amendment 11
  12. 12. Grain yield (kg/ha) FIG. 4. RELATIONSHIP BETWEEN NUMBER OF SEEDS AND GRAIN YIELD. 4000 3500 3000 2500 2000 1500 1000 500 0 y = 240.9x - 427.8 R² = 0.696 Fig. 6. The relationship between number of seeds and Grain yield. 4 9 14 Number of panicles 19 12
  13. 13. Grain yield (kg/ha) FIG. 5. RELATIONSHIP BETWEEN 1000 SEED WEIGHT AND GRAIN YIELD. 4000 3500 3000 2500 2000 1500 1000 500 0 y = 449.6x - 8489 R² = 0.796 20 22 24 1000 seed weight (g) 26 28 13
  14. 14. CONCLUSION 1  This experiment was set up to determine the influence of seed quality and soil fertility management on the yield components and grain yield of Jasmine 85 rice in the Guinea savannah zone.  Seed quality and soil fertility management determined three yield components, i.e. Panicle length, Panicle weight and 1000 seed weight  Certified seed was superior to farmer saved seed and overwhelmingly promoted most of the parameters investigated. 14
  15. 15. CONCLUSION 2 Recommended rate of inorganic fertilizer at 250 kg NPK/ha plus 120 kg urea/ha as basal and top-dressing applications respectively, was sometimes adequate to support the performance of production. However, the effect of the recommended fertilizer rate supplemented with 3tons/ha of compost was overwhelming. The results of this study re-emphasised the need to build the capacity of farmers in using Certified seed and the integration of crop-livestock into the farming systems in 15 the Guinea savannah zone.
  16. 16. THANK YOU 16

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