Imported Swine Count, March 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, April 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, May 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, June 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, July 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, August 2011

The imported swine court report monthly by the Department of Agricultural.

Electrical conductivity of soil irrigated with swine wastewater estimated by time-domain reflectometry¹

Wastewater application to soil is an alternative for fertilization and water reuse. However, particular care must be taken with this practice, since successive wastewater applications can cause soil salinization. Time-domain reflectometry (TDR) allows for the simultaneous and continuous monitoring of both soil water content and apparent electrical conductivity and thus for the indirect measurement of the electrical conductivity of the soil solution. This study aimed to evaluate the suitability of TDR for the indirect determination of the electrical conductivity (ECse) of the saturated soil extract by using an empirical equation for the apparatus TDR Trase 6050X1. Disturbed soil samples saturated with swine wastewater were used, at soil proportions of 0, 0.45, 0.90, 1.80, 2.70, and 3.60 m³ m-3. The probes were equipped with three handmade 0.20 cm long rods. The fit of the empirical model that associated the TDR measured values of electrical conductivity (EC TDR) to ECse was excellent, indicating this approach as suitable for the determination of electrical conductivity of the soil solution.

Imported Swine Count, October 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, November 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, December 2011

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, January 2012

The imported swine court report monthly by the Department of Agricultural.

Effect of swine residue rates on corn, common bean, soybean and wheat yield

Swine residue (SR) applied as nutrient source of crops such as corn, bean, soybean and wheat, besides representing an environmental-friendly way of disposing of organic waste resulting from swine production, may significantly increase grain yields, replacing mineral fertilizer. The objective was to evaluate the effect of SR rates on corn, common bean, soybean and wheat yields from 2002 to 2007, in comparison with mineral fertilizer. The experiment was carried out at the Instituto Agronômico do Paraná - IAPAR, Pato Branco, PR and consisted of increasing SR rates (0, 15, 30, 45, and 60 m³ ha-1) and one treatment with mineral fertilizer (NPK 4-30-10), using 250 kg ha-1 for bean and 300 kg ha-1 for corn, soybean and wheat. Also, in the treatment with mineral fertilizer, 60, 120 and 90 kg ha-1 N was applied as topdressing to bean, corn and wheat, respectively. There were significant increases of grain yield in all evaluated years and crops with increasing SR rates, especially in the grass species under study. Also, with increasing SR rates applied every six months, K, P, Ca and Mg were accumulated in the soil and the pH increased. The application of 60 m³ ha-1 SR increased yields and exceeded the yield obtained with the recommended mineral fertilizer, indicating this amount as adequate for these crops.

Imported Swine Count, March 2012

The imported swine court report monthly by the Department of Agricultural.

Imported Swine Count, September 2012

The imported swine court report monthly by the Department of Agricultural.