The grain yield components of eleven cowpea genotypes were studied in 2006 and 2007 at Abeokuta, Nigeria, to understand the sensitivity quantitative traits heterogeneous environments. differ significantly (p ≤ 0.05) yield; pods/plant Dfodyld equally differed for two years. Significant genotypic variation pod length was only 2007. DT50F, DT95M, 100 seed weight influenced by effect genotype, year their interactions. Seeds/pod, had fairly high relative genetic gain resulting from GCV: PCV,...

AbstractThis study characterized poultry manure extract (tea) and investigated the effects of integrated use tea sequence phosphorus (P) application [P added before (PBT), after (TBP), or jointly (PT) with tea] on P-sorption characteristics acidic, alkaline, neutral tropical soils. Results indicated that diluted contained 400 mg nitrogen, 155.80 potassium, 10.48 P L−1 nutrients were greatest 2 weeks. Soil sorption conformed to Freundlich model, indicating soil affinity was less than aqueous...

In the inland valley (FADAMA) of Directorate University Farms (DUFARMS) Federal Agriculture, Abeokuta (FUNAAB) in Nigeria, an experiment was conducted successfully. The objective to see how integrated nutrient sources influenced performance two lowland varieties rice. A split-plot two-factorial used study, and it replicated three times a randomized complete block design. Rice seedlings were transplanted 12 days after being planted nursery depth 3 cm spacing 20 × cm, one seedling per hill....

Conservation tillage systems that maintain crop residues on soil surface is being suggested as an alternative to conventional system encourages erosion and decline in yield with time. Trials were conducted 1993 1994 investigate the effect of two practices (conventional no-tillage) three nitrogen (N) fertilizer levels (0, 50kg N ha-1 100kg ha-1) growth rate grain maize hybrids (Hybrid 8522-2 8644-3) TZPB-SR(check). At 0kg under tillage, varied from 0.44g-day-1 at 0-10 days after planting...

The present investigation tested the hypothesis that there would be variation in physiological responses to water deficit among rice varieties from different production ecologies, with contrasting tolerance under repeated cycle of soil moisture deficit, at reproductive growth stage. A screen house and a field trial were conducted International Institute Tropical Agriculture, Ibadan Ikenne (Latitude 6° 52' N, Longitude 3° 43' E) respectively. Both experiments had (‘IR 64’, ‘WAB 56-104’, ‘IR...

Improving phosphorus (P) fertility is challenging in tropical soils because of the fixation P by soil components. The trial investigated effect sequential application poultry manure extract (tea) and fertilizer on maize agronomy uptake, through screen house field experiments. Results indicated that tea rich nutrients but low could be applied with to enhance availability reduce fixation. Application before produced taller plant highest uptake field. Manure also increased dry matter grain...

Erratic rainfall distribution pattern poses serious challenge to food production in the rainforest transitory zone of Nigeria. Low input technology through adoption drought tolerant varieties (NERICA) and application Arbuscular Mycorrhiza Fungi (AMF) inoculum could be an alternative option for double cropping upland rice. Field trials were conducted Teaching Research Farm Federal University Agriculture, Abeokuta early late season 2012 agro-ecology The objective was investigate performance...

A pot experiment was conducted in the Screen house of Federal University Agriculture, Abeokuta, October, 2011 (late dry season) to study drought recovery ability 13 upland rice varieties exposed soil moisture stress (20 days) at three growth stages (vegetative, reproductive and grain filling stage). The completely randomized design, with replicates. Under significantly higher recovery, more erect canopy flatter leaf surface were obtained all vegetative stage than other increasing duration...

Nitrogen is an essential nutrient for optimal rice growth and yield. Many Nigerian fields encounter difficulties in their production process because of insufficient nitrogen the soil leading to reduced crop yields. However, sole reliance on expensive inorganic fertilizers economically challenging small farmers Nigeria’s derived savannah. Therefore, integrated approaches management have been put into practice reduce adverse effects climate change improve productivity lowland cultivation. We...

The limited Nitrogen availability in most Nigerian soils is why poor rice yields are observed. cost of inorganic fertilizers, especially the post-COVID-19 era, tends to increase. Systems Rice Intensification (SRI) principles utilize integrated nutrient management systems for growing lowland order reduce negative effects climate change. This study focused on evaluating six different source combinations development NERICA (New Africa) L-34 and ARICA (Advanced Varieties 3 Abeokuta Nigeria,...

Evaluation of ameliorative effect nitrogen and phosphorus rates on iron toxicity lowland rice was examined. Trials were conducted in the Research Farm National Cereal Institute, 2006 2007 wet season. The experiment laid out a randomized complete block design (RCBD) split-split-plot arrangement replicated three times. main blocked consisted levels (0, 30 60 P205 kg ha-1); sub-block four 30, 120 N ha-1)and sub-sub-block ten varieties (five NERICAs (NERICA L-19, 20, 41, 42 60), improved sativa...

Abstract Two field studies were conducted to investigate growth and yield responses of NERICA rice cultivars organic fertiliser sources, at the Teaching Research Farm Federal University Agriculture, Abeokuta (FUNAAB) between May 31 September 30 2009 OgbeEruku Village (OEV), Owode - Egba, Ogun State, Nigeria July 7 November also in 2009. FUNAAB is a transition rainforest derived savanna whereas OEV zone. The experiment was 10 × 3 2 factorial Randomized Complete Block Design (RCBD) replicated...

Rice production in many Nigerian fields faces challenges due to limited nitrogen (N) availability the soil, resulting low yields for farmers. To combat adverse effects of climate change and improve crop productivity, integrated nutrient management methods have been employed lowland rice cultivation. This study focused on investigating impact sources NERICA L-34 ARICA 3 varieties during years 2017, 2018, 2019. Several treatments were applied, including 100 kg N ha-1 (NPK), 75 (NPK) + 25...

Sustainable maize (Zea mays) production in resource challenged regions of the world is achievable among others through optimal utilisation organic fertilisers at varying rates. Field trials were conducted Abeokuta (Latitude 7010' N and Longitude 3015' E) late cropping season 2010 2011. Three commercially available [(Gateway 1 (GF1), Gateway 2 (GF2) Sunshine (SF)], three rates (0, 10 20 t ha-1) replicates used on improved open-pollinated variety (Swam yellow). The experiment was laid out a...