Get the complete project »
- The Complete Research Material is averagely 189 pages long and it is in Ms Word Format, it has 1-5 Chapters.
- Major Attributes are Abstract, All Chapters, Figures, Appendix, References.
- Study Level: MTech, MSc or PhD.
- Full Access Fee: ₦8,000
Three field experiments to investigate the partial nutrient balance (N and K) in cassava/soybean intercrop system were conducted at University of Nigeria, Nsukka in a derived Savannah location of South Eastern Nigeria. Effect of fertilizer rate, residual fertilizer and soybean residue management on growth and yield of soybean and cassava and soil nutrient reserve were studied. Soybean growth and yield were significantly affected by their varieties,
fertilizer rate and cropping system but not by cassava variety. Application of fertilizer at 50 Kg ha-1
fertilizer rate gave the highest soybean total dry matter (898.24 Kg ha-1), highest grain yield (156.91 Kg
ha-1) and highest fresh cassava tuber yield (30.7 t ha-1) at 12 months after planting (MAP). Intercropping cassava variety (NR 8230) with medium maturing variety of soybean, (TGX 1894-3E)
gave the highest grain yield of soybean (133.60 Kg ha-1), highest fresh tuber yield of cassava (30.8 t.ha-
1) at 12 MAP, highest N and K balances (+44.06 and +72.70 Kg.ha-1), highest LER of 2.71 and ATER
of 2.10 at 50 Kg K.ha-1 fertilizer rate. The effect of residual fertilizer on soybean plant height, litter
weight and shoot dry weight was highest at 45 Kg N.ha-1 and 50 Kg K.ha-1 fertilizer rate, while soybean
grain yield of 204.1 Kg.ha-1 was highest at residual 50 Kg K.ha-1 fertilizer rate. Also, cassava leaf-N
(4.05%) and cassava stem-K (2.8%) were highest at residual 45 Kg N.ha-1and 50 Kg K.ha-1, while
cassava tuber yield at 12 MAP was highest (24.27 t.ha-1) at residual. 50 Kg K.ha-1 Soil nitrogen
increased from 0.04%N to 0.34%N and soil- pH from 4.2 to 6.6 at sole soybean. In sole cassava, soil-N decreased from 0.04% initial soil-N to 0.03%N but soil-N under 3 year natural fallow was unchanged. Residual fertilizer affected nitrogen balance of sole cassava which was negative, while intercrop had positive nitrogen balance at all residual fertilizer rates. Potassium balance was positive with intercrop at all residual fertilizer rates except at no fertilizer. Incorporation of soybean residue into cassava/soybean
intercrop system increased cassava tuber yield and soil nutrient status and resulted in positive N and K
balances. Analysing of nutrient stock: balance (NSB) ratio revealed that fertilizer rate of 50 Kg K ha-1 in the first year of cassava/soybean intercrop followed with incorporation of residue in the subsequent
year (without further application of fertilizer) gave the highest dynamic reserve of 310.6 Kg N ha-1 and
311.64 Kg K ha-1. Under sole soybean, production can be sustained for 15 years (NSB ratio 14.58),
while under intercropped system production can be sustained for 9 years for nitrogen and 9 years for
potassium (N balance of +62.64 Kg ha-1 and K balance of +87.66 Kg ha-1). Sole cassava without fertilization and no residue incorporation can be sustained for one year with NSB: ratio of 0.88.
Nutrient monitoring (NUTMON) is an integrated methodology that targets different factors in the process of managing soil nutrients and other natural resources in agriculture (Vlaaming et al., 2001). With the NUTMON methodology, farmers and researchers analyse the environmental and financial sustainability of farming systems. A quantitative analysis generates important indicators such as nutrient flows, nutrient balances, cash flow, gross margins and farm income. Both the quantitative and qualitative analysis are then used to improve or design new technologies that tackle soil fertility management problems and can help improve the financial performance of the farm. Manipulation of nutrient ‘stock and flows’ of farm lands is vital in the derived Savannah zone. Soil organic matter (SOM) in the farms, which accounts for the major cation exchange capacity and nitrogen content of the soil are not often replenished as they decline from crop cycle to crop cycle. The soil therefore becomes rapidly degraded and highly weathered especially where inorganic fertilizers become the major methods for soil nutrient replenishment. According to FAO (2003), agricultural intensification without adequate restoration of soil fertility threatens the sustainability of agriculture. A nutrient input-output balance analysis will therefore help in predicting the sustainability.
Guillard et al. (1995) reported that traditional farming system is a concept that will be developed. This concept is mostly based on ecological principles of constant utilization of all tropic levels. Some approaches to the concept have been reported by Defoer et al. (2000) as integrated nutrient management (INM) and integrated soil fertility management (ISFM). Both concepts included intercropping and biological nitrogen fixation (BNF) as part of input data. By the application of these concepts in any agricultural system, the system should maintain sustainable mineral availability in the soil and results in a balanced nutrient management system (BNMS), (IITA, 1997).
You either get what you want or your money back. T&C Apply
You can find more project topics easily, just search
SIMILAR CROP SCIENCE FINAL YEAR PROJECT RESEARCH TOPICS
1. GENETIC IMPROVEMENT OF FRUIT QUALITY AND ADAPTATION TRAITS OF EXOTIC TOMATO VARIETIES IN A HUMID TROPICAL ENVIRONMENT» ABSTRACT The experiment was conducted at the Teaching and Research Farm and Laboratory, of the Department of Crop Science, University of Nigeria, Nsuk...Continue Reading »
2. MANAGEMENTOF FUNGAL DISEASES ASSOCIATED WITH GERMINATION AND GROWTH OF MORINGA OLEIFERA LAMARCK WITH BOTANICALS» ABSTRACT Studies were carried out at the Department of Crop science, University of Nigeria Nsukka (UNN) to evaluate botanicals control of diseases ass...Continue Reading »
3. MOLECULAR CHARACTERIZATION OF SOME NIFOR AND ELITE OIL PALM BREEDING POPULATIONS USING MICROSATELLITE MARKERS» ABSTRACT The traditional method of hybrid identification and genetic diversity evaluation based on differences in range of expressions of morphologica...Continue Reading »
» ABSTRACT This research was carried out to study the influence of three cooking methods (frying, smoking and roasting) on the physicho chemical propert...Continue Reading »
5. EVALUATION OF GROWTH AND YIELD RESPONSES OF TARO (COLOCASIA ESCULENTA) TO PLANT SPACING AND NPK FERTILIZER IN THE PLAINS OF NSUKKA, NIGERIA.» ABSTRACT Two field experiments were conducted in 2008 and 2009 cropping seasons at the linkage farm of the University of Nigeria, Nsukka to evaluate g...Continue Reading »
6. THE USE OF WATERMELON (CITRILLUS LANATUS) SEED AS A COAGULANT IN THE TREATMENT OF INDUSTRIAL WASTEWATER.» CHAPTER ONE 1.0 INTRODUCTION 1.1 BACKGROUND OF THE STUDY Water is a vital resource, but presents a worrisome depletion in recent time. Adequate water ...Continue Reading »
7. COMBINING ABILITY AND HETEROSIS FOR FRUIT YIELD AND HEAT TOLERANCE IN TOMATO (LYCOPERSICON LYCOPERSICUM Mill.) UNDER FIELD CONDITIONS» ABSTRACT Heat stress causes significant fruit yield loss in tomato (Lycopersicon lycopersicum Mill.). Breeding of tomato hybrids tolerant to high temp...Continue Reading »
» ABSTRACT The patterns of gene effects on agronomic and some quality traits of eight genotypes of rice (Oryza sativa L.) and their progenies were studi...Continue Reading »
9. EVALUATION OF 31 RICE (Oryza sativa L.) BREEDING LINES AND GENETIC ANALYSIS OF EIGHT SELECTED LINES USING DIALLEL METHODS» ABSTRACT A diallel set consisting of p2 combinations (p parents ½ P(p 1) F2 hybrids, and the backcrosses among eight rice breeding lines were g...Continue Reading »
10. EFFECT OF SIX WEED MANAGEMENT TECHNIQUES ON WEEDCONTROL AND GROWTH AND YIELD OF PLANTAIN (MUSA SPP AAB cv AGBAGBA) AT NSUKKA.» ABSTRACT The effects of five weed management techniques and a weed free control on weed infestation and on the growth and yield of a plantain landrace...Continue Reading »