Abstract
A field experiment was conducted on an Arenic paleudult in the rainforest zone of Southern Nigeria to determine the response of an improved variety of peanut (Arachis hypogea L. var. Samnut 23) to phosphorus, under different land preparation methods. Selected land preparation methods were “slash and burn” (SB) and “slash and mulch” (SM), and the phosphate fertilizer rates were 0, 30, 60, 90 and 120 kg P ha-1. The experiment was laid out as a randomized complete by block design. Each land preparation was divided into plots. Macro- and micro nutrient contents of peanut plants were determined, and the growth and yield components were also assessed. Results showed that the pre planting soil analysis for the SB management had a pH of 5.77, N (1.8 gkg-1), P (2.05 mgkg-1) and K (0.11cmol (+) kg-1), while that of the SM had a pH of 5.95, N (0.9 g kg-1), P (0.86 mg kg-1) and K (0.07cmol(+)kg-1). Plant height was not significantly different (pd” 0.05) in the land preparation methods, but leaf area was significantly different. However, plant height and leaf area responded better under the SB treatment with 90 kg P ha-1 rate of phosphorus fertilizer than the SM treatment under the same rate. Fresh pod weight of 908.6kg ha-1 and dry pod weight of 558.0kg ha-1 was obtained at 60 kg P ha-1 under the SB treatment and was significantly different from all other treatments including the SM. Significant differences were also observed in the nutrient concentrations of leaves and roots. Highest leaf phosphorus content (3.502 mg kg-1) was recorded at 90kg P ha-1 in the SM treatment while the highest nutrient content of P in the roots (0.272 mg kg-1) was recorded at 30 kg P ha-1 also in the SM treatment. However, the SB treatment recorded the highest peanut seed pods / shell at 60 kg P ha-1. Generally, phosphorus fertilization under the SB management practice gave better results than the SM management practice.Keywords: groundnut, land preparation, phosphorus fertilization, Slash and burn, slash and mulch [How to Cite: Joseph SO and RO Oyibo. 2014. Phosphorus Fertilization Under Different Land Preparation Methods and Performance of Groundnut (Arachis hypogea L.) in Rainforest Zone of Southern Nigeria. J Trop Soils 19(1): 1-7. Doi: 10.5400/jts.2014.19.1.1]
Highlights
Nitrogen is the most limiting nutrient for crop production in many regions of the world (Fageria 2009), especially in arid and semiarid regions (Sharifi et al 1988)
The study in coastal sandy soil was performed to examine the effect of coated urea with several humic-calcium to transformation and reduction of leaching N
The cow manure derived from veterinarian in Bugel, whilst peat from lake rawa pening in Ungaran
Summary
Nitrogen is the most limiting nutrient for crop production in many regions of the world (Fageria 2009), especially in arid and semiarid regions (Sharifi et al 1988). The control of fertilizer release keeps the fertilizer concentration at effective levels in the soil solution and releases the fertilizer when the plant most needs it (Al-Zahrani 1999) These fertilizers can be physically prepared by coating granules of. . Sulakhudin et al.: Effect of Coated Urea with Humic-Calcium on Transformation of Nitrogen conventional fertilizers with various materials that reduce their dissolution rate (Tomaszewska et al 2002). Humic substances (Hs), as one of the organic macromolecule compounds, were made for membrane material It can incorporate nitrogen into their structure either directly through chemical reactions or indirectly through microbial activities and subsequent decomposition of microbial biomass (Clinton et al 1995). The study in coastal sandy soil was performed to examine the effect of coated urea with several humic-calcium (hucalci) to transformation and reduction of leaching N
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
