Saturday, 15 July 2006

Effects of Application Fertilization Organic on Soil Organic Matter, P, K; Tissues N, P, K and Yield of Corn.

Isabel Arrieche and Orlando Mora. Instituto Nacional de Investigaciones Agrícolas de Venezuela, Km 3, El Rodeo Via Rest.Las Canarias, Estacion Local Yaritagua, Urb.Club Hipico Las trinitarias calle 6, No.H-7,Barquisimeto Estado Lara, Yaracuy, Venezuela

With objective the evaluate effects that produced the application of three residues organic on chemistry properties of soils, tissues of plants and corn field, were conducted experiments on two types of degradates soils alfisols: S1= Acid Soil, locality of "The Virgin", Bruzual municipium; S2= Alkaline Soil located in the "Local Station Yaritagua", Peña municipium, Yaritagua, state Yaracuy, Venezuela. Amendments were applied with doses 2,000 Kg.ha-1 a randomized complete blocks design with three repetitions and four treatments: T1 = 0 RO; T2 = Chicken manure composted with heat; T3 = Chicken manure composted with enzymes, T4 = Sugar cane composted with enzymes (filter cake). The MO extractable with method wakley – Black, P extractable method Olsen levels, resulted higher with T3 and T4 than T0, the rest of variables weren't significative statically to both soils. The N level in tissues of corn was numerically highest in compost-treated plots. Fewer differences were detected among treatments for others elements in two soils. The rates of applications of compost treatments increment yield of corn when to compared a T0, especially the effect was significative with the treatment T4 (filter cake) in alkaline soil (S2). Key words: Soils degradated, chicken manure, filter cake, corn.

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