INTEGRATED REGIME OF BIO., ORGANIC AND MINERAL FERTILIZATION FOR PEANUT IN SANDY SOIL

Document Type : original papers

Authors

1 Prof. of Soil Microbiology, Fac. of Agric., Menoufia Univ.

2 Prof. of Soil Chemistry, Fac. of Agric., Menoufia Univ.

3 Prof. and Head of Research- Soils, Water and Environment Res. Inst.- Agric. Res. Center - Giza

Abstract

This study were carried out on sandy soil Experimental Farm. Agricultural research Center “ARC”, Ismailia Government, Egypt to evaluate one of integrated fertilization system of peanut "Arochishypogaea" (variety Giza 5) Plant. This system cosist of mineral-N at two application  rates of 25 and 40 kg N fed-1 two mixtures of biofertilizersi.e B1 Azospirillum braselinse, local strain, Bacillus megatherium, local strain and Azotobacter chroococcum, local strain and B2 Bradyrhizobium.sp , strain(USDA 3456), Serratia marcescens, strain MH6 and Psuedomonas  fluorescens, strain IFO 2034 which appeared at a rate of 300 g/ 50 kg seeds and organic fertilizers in different sources i.e farmyard manure (FYM), solid plant residues (SPC), enriched compost tee (ECT) and mixture of FYM+ECT, where solid organic fertilizer were added at a rate of 75 L fed -1. The mixture treatment consists of 2.5 t FYM fed-1 + 37.5 L ECT fed-1. Plant sample were taken randomly from each replicates at growth periods of 45, 70 and harvest day. The studied treatment were arranged within split split design in three replicates.

At 45 and 70 old days, number of nodules and its weight plant -1 and fresh and dray weights shoots plant as well as shoots content of N, P and K increased significantly as a result of individual and combined applications of the used mineral-N, bio and organic fertilizers. In addition, at harvesting stage, dray weight of both shoots and seeds content of protein and oil were increased significantly with all fertilization treatments under study.

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