The Effect of Organic and Inorganic Fertilizer on Growth of Jatropha curcasL. Seedling on Degraded Land at Nifas Silk Lafto Subcity, Addis Ababa

Etsegenet, G/Hana (2014) The Effect of Organic and Inorganic Fertilizer on Growth of Jatropha curcasL. Seedling on Degraded Land at Nifas Silk Lafto Subcity, Addis Ababa. Masters thesis, Addis Ababa University.

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Abstract

Jatropha curcas L. is one of the biofuel plants that can grow on degraded lands for rehabilitation the soil and to increase biodiversity.Its oil can also be used as a substitute for fossil fuel that causes high environmental pollution and is useful to ease energy scarcity pressure. It grows on degraded land with lower efficiency. For better growth results treatments with appropriate amount of nutrient is needed. Though it had been known it gives different response on different climatic and soil conditions its nutrient requirements are not known. Therefore, this study evaluates the growth performance of the plant by studying its nutritional requirement on degraded land for its efficient growth response. Field experiments were conducted to analyze its growth response to organic and inorganic fertilizers on degraded land. The experiment had been done on degraded land rehabilitation plantation pilot project in Nifas Silk Lafto sub city (NSLSC) Addis Ababa City Administration Environmental Protection Authority (AAEPA) on seedlings at the age of nine month after plantation. The selected and plotted 90 samples seedlings of Jatropha curcas L. were treated with N (60 and 50 g/plant), P (80 and 100 g/plant), K (75 and 60 g/plant), CM (4 kg/plant and 2kg/plant), C (2 kg/plant and 1kg/plant) and BGS (3 kg/plant and 1.5 kg/plant) under normal climatic and Soil physicochemical conditions which were considered prior than the treatments. Different morphological growth parameters such as Height of the plant (Ht), Collar diameter (Cd), canopy height (CaH), canopy diameter (CaD), primary branch (PBr), secondary branch (SBr) and Leaf area per plant (LA) were measured to observe the impact the nutrients on growth. The above growth parameters were measured and collected for six consecutive months. The collected and cleaned data were analyzed by Anova, Manova and independent T test. The result shows all the growth parameters are in increasing trend for both organic and inorganic fertilizer applications. The results also revealed that the lowest N level (50 g N/plant ) was more successful for rising most of the studied traits i.e. height, collar diameter, canopy height and leaf area of the plant except canopy diameter. Application of P80K75 recorded significantly higher height, canopy height, canopy diameter, and collar diameter. Among all the treatments combined effect of C and BS is the best treatment that enhanced all growth parameters. According to the results from the study growth of Jatropha curcas L. on degraded land is determined by fertilizer application.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	organic fertilizer, inorganic fertilizer, Jatropha, growth
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences Q Science > QH Natural history > QH301 Biology Q Science > QK Botany
Divisions:	Africana
Depositing User:	Selom Ghislain
Date Deposited:	29 Jun 2018 13:44
Last Modified:	29 Jun 2018 13:44
URI:	http://thesisbank.jhia.ac.ke/id/eprint/6357

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