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Reasons for seed selection include;High qualityHigh yieldHigh germination rateTo reduce chances of disease/pest attack Crops / avoid spread of weedsSeeds that can grow in specific area
Disadvantages of too much nitrogen in crop production are;Delayed maturityLodging in cerealsExcessive succulency
Environmental factors affecting crop production include;RainfallTemperaturesWindSoil type
Significance of nursery in crop production include;Production of many seedling in a smell spaceRoutine management practices are easily and timely carried outEnsures transplanting of only healthy and vigorously growing seedling.Facilitates the planting of small seed.Reduces the period of the seedling take in the seed bed.