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101
101
What is the role of zinc in maize plant nutrition and development?
Zinc is essential for enzyme activity, protein synthesis, and early maize seedling establishment.
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102
102
How do you control downy mildew disease in pearl millet crops?
Use resistant varieties and seed treatment with metalaxyl fungicide to control downy mildew.
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103
103
What is the recommended fertilizer program for high-yield maize production?
Apply DAP at planting and CAN topdressing at knee height for maximum maize yield.
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104
104
How does soil compaction affect root growth and yield of maize?
Compacted soil restricts root depth and reduces water and nutrient access in maize plants.
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105
105
What is the best way to evaluate maize performance across different farms?
Use randomized trial plots with standard measurements to compare maize performance fairly.
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106
106
How do you manage volunteer maize plants that grow from previous season?
Remove volunteer plants early as they compete with current crop and host pests and diseases.
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107
107
What is the economic threshold for controlling fall armyworm in maize?
Treat maize fields when more than 30 percent of plants show fresh fall armyworm damage.
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108
108
How do you time planting to avoid peak fall armyworm pressure on maize?
Early planting before rainy season peak reduces fall armyworm damage in maize significantly.
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109
109
What is the correct grain moisture for milling maize into flour?
Maize grain at 13 to 14 percent moisture grinds well and produces good quality flour.
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110
110
How does phosphorus application affect the early growth of sorghum?
Phosphorus applied at planting promotes root development and early sorghum establishment.
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111
111
What are the advantages of growing open-pollinated maize varieties locally?
Open-pollinated varieties allow seed saving, adapt to local conditions, and have lower seed costs.
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112
112
How do you calculate seed rate needed to plant a 5-acre maize farm?
A 5-acre maize farm needs 10 to 15 kilograms of seed depending on spacing used.
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113
113
How does soil water availability affect tiller production in sorghum?
Adequate soil water during establishment promotes more tillers and increases sorghum yield potential.
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114
114
What is the economic impact of mycotoxin contamination on maize grain?
Mycotoxin contamination causes grain rejection at markets and significant income loss for farmers.
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115
115
What is the role of sulfur in producing quality grain for crops?
Sulfur is essential for protein formation and is critical for quality grain development.
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116
116
How do you prevent cross-pollination when producing pure maize seed?
Maintain 300 meter isolation distance between varieties to prevent cross-pollination in seed fields.
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117
117
How does leaf area index affect the productivity of a maize stand?
Higher leaf area captures more sunlight and increases photosynthesis which improves maize yield.
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118
118
What is the maximum weed-free period needed for maize after planting?
Maize must remain weed-free for the first 6 weeks after planting to avoid yield losses.
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119
119
What is the recommended planting depth for sorghum seeds in sandy soils?
Plant sorghum seeds two to three centimeters deep in sandy soils to ensure good germination.
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120
120
What is the sign of poor pollination in maize and how do you fix it?
Silks turning brown with unfilled cobs indicates poor pollination caused by drought at flowering.
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121
121
How does the weight of seed affect establishment of maize in the field?
Heavier seeds have more reserves and establish better than light seeds under field conditions.
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122
122
How does the time of harvest affect aflatoxin levels in groundnuts?
Delayed groundnut harvest exposes pods to soil fungi causing high aflatoxin contamination risk.
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123
123
What is the role of iron in chlorophyll formation in crop plants?
Iron is essential for chlorophyll synthesis and deficiency causes yellowing in young leaves.
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124
124
What is the most cost-effective method for weed control in sorghum?
One mechanical cultivation plus one hand weeding is most cost-effective for sorghum weed control.
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125
125
How do you increase maize yield without increasing fertilizer application?
Improve plant spacing, timely weeding, and pest control to increase yield without extra fertilizer.
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126
126
How does the rooting depth of maize affect its response to drought?
Deep-rooted maize plants access more water and survive dry spells better than shallow-rooted plants.
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127
127
What is the best way to assess crop loss caused by pests in Uganda?
Use systematic plot sampling to count damaged plants and calculate percentage losses per acre.
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128
128
What is an economic incentive for growing more sorghum in Uganda?
Sorghum is used for beer brewing and has strong local market demand in Uganda currently.
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129
129
What is the best way to establish a tomato nursery for transplanting?
Fill seedling trays with sterilized compost and sow tomato seeds shallowly in rows carefully.
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130
130
How do you control bacterial wilt in tomato crops grown in Uganda?
Use certified seeds, rotate crops, and remove infected plants immediately to control bacterial wilt.
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131
131
What spacing is recommended for transplanting cabbage seedlings in the field?
Transplant cabbage at 60 by 45 centimeters spacing for full-size head development.
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132
132
How do you manage damping off disease in vegetable nurseries?
Use sterilized growing medium, improve drainage, and apply metalaxyl fungicide at emergence.
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133
133
What is the best irrigation method for growing capsicum in Uganda?
Drip irrigation delivers water efficiently and reduces humidity that promotes disease in capsicum.
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134
134
How do you produce hybrid tomato seed for small-scale farmers?
Hand-pollinate selected parent plants, harvest fruit, and process seed carefully for distribution.
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135
135
What is the average yield of onions per acre in Uganda?
Well-managed onion crops yield eight to twelve tonnes per acre under good conditions.
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136
136
How do you cure onions after harvest before selling them to markets?
Dry onions in well-ventilated shade for two weeks until outer skins become papery.
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137
137
What is the most important pest affecting tomato production in Uganda?
The tomato leafminer is a key pest damaging tomato foliage and reducing yields significantly.
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138
138
How do you control spider mites on vegetables during dry season?
Apply acaricide spray or use strong water jet to remove spider mites from leaves.
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139
139
What is the recommended fertilizer for cabbage production per acre?
Apply 100 kilograms DAP and 100 kilograms CAN per acre for high cabbage yields.
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140
140
How do you prevent bolting in lettuce crops during hot weather?
Use heat-tolerant varieties, provide shade, and water frequently to prevent lettuce bolting.
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141
141
What is the best substrate for vegetable seedling production?
Mix compost, sand, and topsoil equally to make ideal seedling production substrate.
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142
142
How do you manage eggplant flea beetles that damage foliage?
Apply neem-based insecticide and remove crop debris to reduce flea beetle populations.
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143
143
What is the best mulch for vegetable gardens in the dry season?
Dry grass or straw mulch five centimeters thick keeps soil moist and cool for vegetables.
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144
144
How do you reduce the cost of vegetable production through input efficiency?
Prepare own seedlings, use compost, and apply integrated pest management to reduce costs.
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145
145
What distance should you space onion seedlings in the field?
Plant onion seedlings 10 centimeters apart in rows 30 centimeters wide for bulb development.
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146
146
How do you harvest and store carrots for extended freshness?
Harvest carrots when shoulders appear at soil surface and store in cool moist sand.
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147
147
What are the signs of calcium deficiency in tomato crops?
Blossom end rot on tomato fruits is a key sign of calcium deficiency in plants.
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148
148
How do you control Phytophthora root rot in pepper crops?
Improve drainage, use raised beds, and avoid overwatering to prevent Phytophthora root rot.
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149
149
What is the ideal temperature range for tomato fruit set?
Tomatoes set fruit best between 18 and 27 degrees Celsius night and day temperatures.
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150
150
How do you identify early blight disease on tomato plants?
Dark concentric rings on lower leaves that spread upward indicate early blight on tomatoes.
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151
151
What vegetable crops give the fastest returns for small farmers?
Sukuma wiki, tomatoes, and leafy vegetables give fastest returns for small vegetable farmers.
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152
152
What is the benefit of growing vegetables on raised beds in Uganda?
Raised beds improve drainage, warm up faster, and produce higher vegetable yields per area.
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153
153
How do you grow onions from seeds rather than sets in Uganda?
Grow onion seedlings in nursery for 6 weeks then transplant to prepared field beds.
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154
154
What pests attack brinjal crops in Uganda and how do you control them?
Fruit borers and flea beetles attack brinjal and are controlled with neem spray regularly.
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155
155
How do you manage the high cost of vegetable seeds in Uganda?
Buy cooperatively, produce your own open-pollinated seeds, and bulk-purchase to reduce costs.
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156
156
What is the recommended plant spacing for growing garlic in Uganda?
Plant garlic cloves 10 by 15 centimeters apart for good bulb development and yield.
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157
157
How do you control thrips in onion crops grown in Uganda?
Apply systemic insecticide at early infestation and use blue sticky traps to monitor thrips.
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158
158
What is the best season to grow capsicum in highland Uganda?
Capsicum grows best during the cool dry season with irrigation in highland Uganda areas.
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159
159
How do you grow cherry tomatoes for high-value local markets?
Plant cherry tomatoes in well-drained fertile soil and stake early for support and airflow.
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160
160
What are the nutritional requirements of kale grown in Uganda?
Kale needs nitrogen for leafy growth and benefits from regular compost and urea application.
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161
161
How do you establish a cucumber crop for local market selling?
Prepare raised beds, apply compost, and train cucumbers on strings to maximize production.
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162
162
What causes fruit cracking in tomatoes and how do you prevent it?
Irregular watering causes fruit cracking and consistent soil moisture prevents this problem.
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163
163
How do you grow waterleaf vegetable as a nutritious crop in Uganda?
Waterleaf grows in moist soil with partial shade and can be harvested within 30 days.
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164
164
What is the best way to control root-knot nematodes in vegetable gardens?
Rotate with non-host crops, use resistant varieties, and apply organic nematicides regularly.
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165
165
How does nitrogen fertilizer affect the quality of leafy vegetables?
Excess nitrogen makes leaves soft and prone to disease while adequate nitrogen improves quality.
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166
166
What is the best way to harden off vegetable seedlings before transplanting?
Reduce watering gradually and expose seedlings to outdoor conditions three days before transplanting.
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167
167
How do you grow pumpkins alongside other crops on a small farm?
Plant pumpkins on field margins or as intercrop with maize for extra income and nutrition.
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168
168
What is the recommended planting depth for Irish potato seed pieces?
Plant Irish potato seed pieces five centimeters deep in well-drained fertile ridges.
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169
169
How do you control late blight disease in Irish potato crops?
Apply mancozeb fungicide weekly during wet season and use resistant varieties for control.
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170
170
What causes green shoulders on tomatoes and how do you prevent it?
Excess sunlight on fruit causes green shoulders and is prevented by providing leaf cover.
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171
171
How does soil temperature affect transplant establishment in vegetables?
Warm soil above 15 degrees Celsius ensures better root establishment for transplanted vegetables.
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172
172
What is the best way to stake tomatoes for high yield production?
Use tall stakes two meters high and tie plants loosely to allow growth and airflow.
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173
173
How do you improve fruit size in tomatoes grown in Uganda?
Remove lateral shoots, limit fruits per cluster to four, and fertilize with calcium and potassium.
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174
174
What is the shelf life of different fresh vegetables commonly grown in Uganda?
Tomatoes last 5 days, leafy greens 2 days, and onions 3 months at ambient temperatures.
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175
175
How do you grow baby vegetables for high-value restaurant market?
Use small-fruited varieties, pick young at half size, and package attractively for restaurants.
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176
176
What causes misshapen fruits in pepper crops and how to correct it?
Poor pollination causes misshapen peppers and is corrected by managing pollinator habitat nearby.
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177
177
How do you grow ginger as a cash crop on a small farm?
Plant ginger rhizomes in partially shaded well-drained beds and harvest after 8 months maturity.
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178
178
What is the best way to apply foliar fertilizer to vegetable crops?
Spray foliar fertilizer on both leaf surfaces in early morning for best absorption by plants.
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179
179
What are the common mistakes farmers make in vegetable production?
Overcrowding, overwatering, ignoring pests early, and poor post-harvest handling are common mistakes.
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180
180
How do you grow turmeric as a value-added crop on your farm?
Plant turmeric rhizomes in shaded moist soil and harvest after 8 to 10 months growth.
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181
181
How does drip irrigation improve tomato quality and reduce disease?
Drip irrigation keeps foliage dry, reduces disease, and improves tomato fruit quality significantly.
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182
182
What is the recommended fertilizer for high-yield onion production?
Apply NPK 17-17-17 at transplanting and topdress with CAN every two weeks for good yield.
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183
183
How do you minimize postharvest vegetable losses in rural Uganda?
Harvest early in the morning, use crates not sacks, and sell same day to reduce losses.
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184
184
What is the role of boron in vegetable crop production?
Boron is essential for pollination, fruit set, and cell wall formation in vegetable crops.
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185
185
How do you grow leeks as an alternative vegetable crop in Uganda?
Transplant leek seedlings in trenches and gradually earth up stems for long tender white shanks.
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186
186
What soil preparation is needed for growing Irish potatoes in Uganda?
Deep plowing, ridging, and applying compost prepare soil well for Irish potato production.
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187
187
How do you market fresh vegetables during oversupply periods in Uganda?
Process into sauce, dry vegetables, or sell to institutional buyers during glut periods.
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188
188
What are the signs of overwatering in vegetable crops?
Yellowing lower leaves, waterlogged soil, and mold on stems indicate overwatering of vegetables.
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189
189
How do you grow amaranth as a nutritious vegetable in Uganda?
Broadcast amaranth seeds on a prepared bed and thin to 20 centimeters for good growth.
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190
190
What is the best trap crop for managing pests in vegetable gardens?
Basil and African marigold trap and repel common vegetable pests in Uganda effectively.
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191
191
How does excess nitrogen affect fruit quality in tomato crops?
Excess nitrogen causes excessive vegetative growth and reduces fruit quality and sweetness.
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192
192
How do you use poultry manure to improve soil for vegetable production?
Apply well-composted poultry manure at five tonnes per acre two weeks before planting vegetables.
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193
193
What is the correct carbon to nitrogen ratio for good compost production?
A carbon to nitrogen ratio of 25 to 30 to 1 produces well-decomposed compost efficiently.
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194
194
How does crop residue management affect soil carbon stocks over time?
Incorporating crop residues builds soil carbon, improves structure, and increases long-term productivity.
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195
195
How do you make liquid fertilizer from fermented plant materials?
Chop plants, ferment in water for two weeks, dilute, and apply as foliar or soil drench.
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196
196
What is the correct rate of poultry manure application for maize?
Apply three to five tonnes of composted poultry manure per acre for maize production.
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197
197
How do you use biogas slurry as a liquid fertilizer on your farm?
Dilute biogas slurry with water at 1 to 5 ratio and apply to crops as liquid fertilizer.
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198
198
What is the benefit of adding rock phosphate to soil in Uganda?
Rock phosphate slowly releases phosphorus, improves acidic soil, and provides long-term crop nutrition.
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199
199
How does the type of organic matter affect how fast it decomposes?
Fresh green materials decompose faster than dry brown materials due to higher nitrogen content.
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200
200
What is the most efficient composting system for a small farm?
A three-bin system allows continuous composting where one bin fills, one cures, one is used.
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