International Journal of Academic Research and Development, 2020
This present study was done to evaluate the effect of different basal chemical fertilizers singly... more This present study was done to evaluate the effect of different basal chemical fertilizers singly and in combination at varying application rates on the growth and yield attributes of tomato (Lycopersicon esculentum Mill.). The field experiment was carried out in a randomized complete block design (RCBD) as a 3 x 3 factorial trial treatment with four replicates. Data was collected on number of: leaves, branches, fruits, flowers; plant height and fruit yield. All the collected data were subjected to statistical analysis. The results revealed that there were significant (p< 0.05) differences in number of: leaves, branches, fruits, flowers; plant height and fruit yield. In these parameters, the highest mean values were registered in treatment F3Compound D + Gypsum (combination of chemical fertilizers Compound D + Gypsum) than those in the chemical fertilizers applied alone or control treatment. The highest mean yield was significant from treatment A1300kgs with the highest application rate. The result determined that application of chemical fertilizers F3Compound D + Gypsum x A1300kgs can increase the growth and total yield in tomato cultivation over the standard control.
Journal of Scientific and Engineering Research, 2019
Tomatoes were exposed to each type of biochar pyrolysed at 300°C, 400°C and 500°C, and the contro... more Tomatoes were exposed to each type of biochar pyrolysed at 300°C, 400°C and 500°C, and the control treatment had no biochar. The tomatoes were ripened in three environments namely the refrigerator set at 10°C, oven set at 25°C and laboratory desktop at room temperature. The effect of environment was significant (p<0.05) on visual colour and tomatoes in the open air recorded highest colour score, implying that they ripened faster, than tomatoes in incubator and refrigerator. Tomatoes stored with biochar had significantly higher visual colour scores than tomatoes without biochar and this meant that tomatoes with biochar ripened faster than those without biochar. Tomatoes stored in open air required a lower force to penetrate than tomatoes in refrigerator and incubator. Tomatoes not treated with biochar required greater force to penetrate than tomatoes with biochar, meaning untreated tomatoes ripened slower than treated tomatoes. Total soluble solids (TSS) was not affected (p>0.05) by both the ripening environment and biochar pyrolysis temperature. Titratable acidity (TA) was affected (p<0.05) by environment, tomatoes in open air ripened faster than tomatoes in incubator and fridge. Biochar treated tomatoes had a higher TSS/TA ratio, implying they were ripening faster, than untreated tomatoes. Contrary to the fact that biochar can be used to increase shelf life of tomatoes, results from the experiment showed that biochar increased ripening suggesting that freshly made biochar from maize cobs may contain ethylene that accelerated ripening. The ethylene content seemed to be dependent on the pyrolysis temperature, hence the pyrolysis temperature*ripening environment interaction recorded on some of the ripening parameters.
International Journal of Academic Research and Development, 2020
This present study was done to evaluate the effect of different basal chemical fertilizers singly... more This present study was done to evaluate the effect of different basal chemical fertilizers singly and in combination at varying application rates on the growth and yield attributes of tomato (Lycopersicon esculentum Mill.). The field experiment was carried out in a randomized complete block design (RCBD) as a 3 x 3 factorial trial treatment with four replicates. Data was collected on number of: leaves, branches, fruits, flowers; plant height and fruit yield. All the collected data were subjected to statistical analysis. The results revealed that there were significant (p< 0.05) differences in number of: leaves, branches, fruits, flowers; plant height and fruit yield. In these parameters, the highest mean values were registered in treatment F3Compound D + Gypsum (combination of chemical fertilizers Compound D + Gypsum) than those in the chemical fertilizers applied alone or control treatment. The highest mean yield was significant from treatment A1300kgs with the highest application rate. The result determined that application of chemical fertilizers F3Compound D + Gypsum x A1300kgs can increase the growth and total yield in tomato cultivation over the standard control.
Journal of Scientific and Engineering Research, 2019
Tomatoes were exposed to each type of biochar pyrolysed at 300°C, 400°C and 500°C, and the contro... more Tomatoes were exposed to each type of biochar pyrolysed at 300°C, 400°C and 500°C, and the control treatment had no biochar. The tomatoes were ripened in three environments namely the refrigerator set at 10°C, oven set at 25°C and laboratory desktop at room temperature. The effect of environment was significant (p<0.05) on visual colour and tomatoes in the open air recorded highest colour score, implying that they ripened faster, than tomatoes in incubator and refrigerator. Tomatoes stored with biochar had significantly higher visual colour scores than tomatoes without biochar and this meant that tomatoes with biochar ripened faster than those without biochar. Tomatoes stored in open air required a lower force to penetrate than tomatoes in refrigerator and incubator. Tomatoes not treated with biochar required greater force to penetrate than tomatoes with biochar, meaning untreated tomatoes ripened slower than treated tomatoes. Total soluble solids (TSS) was not affected (p>0.05) by both the ripening environment and biochar pyrolysis temperature. Titratable acidity (TA) was affected (p<0.05) by environment, tomatoes in open air ripened faster than tomatoes in incubator and fridge. Biochar treated tomatoes had a higher TSS/TA ratio, implying they were ripening faster, than untreated tomatoes. Contrary to the fact that biochar can be used to increase shelf life of tomatoes, results from the experiment showed that biochar increased ripening suggesting that freshly made biochar from maize cobs may contain ethylene that accelerated ripening. The ethylene content seemed to be dependent on the pyrolysis temperature, hence the pyrolysis temperature*ripening environment interaction recorded on some of the ripening parameters.
Uploads
Papers by Obey Zingwari