Poultry litter and swine compost as nutrients sources in millet

Abstract

Poultry and pork farming are typical activities of small farms in southern Brazil. This production plays an important social and economic role in many of these areas as it is often the main income source. The swine compost has emerged as an alternative to reduce the volume of swine wastewater, which is transformed into a residue that can be easily transported and applied with less environment prejudice. However, there is no information in literature regarding the use of this compound as a source of nitrogen in grain crops. Therefore, the aim of this study was to evaluate poultry litter and swine compost as organic sources of nitrogen for the millet crop. The experiment was conducted in the years of 2013 and 2014 in southern Brazil, in no-tillage systems in a Hapludox soil. The treatments were: control (without nitrogen); poultry litter (PL), swine compost (SC) and mineral fertilization (NPK). The use of poultry litter resulted in better averages for almost all evaluated variables. Although the swine compost did not express results as good as the crop treated with poultry litter, the crop in which the swine compound was applied presented better results for some plant parameters than the chemical fertilizer treatment, which shows that these two residues can be viable alternatives for nitrogen fertilization in millet cultivations.

Soybean Fertilized by P-Phases from Bagasse-Based Materials: P-Extraction Procedures, Diffusive Gradients in Thin Films (DGT), and X-ray Diffraction Analysis (XRD)

“…These findings motivated us to ask whether P concentration and availability from bagasse ash could be increased by co-combusting and co-gasifying the bagasse with chicken manure, an organic fertilizer [15] abundant in Brazil [4]. Manure is applied to soils as a disposal practice, which poses environmental risks due to the high solubility of P in the animal waste [16].…”

Impacts of Pig Slurry Applied to Two Different Soils on Nutrient Transport by Runoff

“…In the south of Brazil, pig farming, mostly under a confinement regime, is an important economic activity. The intense production and the generation of a large volume of residues in small family farms, sometimes concentrated in a limited area, have led to significant environmental problems (Basso et al, 2017). In the state of Santa Catarina, 47,000 m 3 day -1 of pig slurry (PS) are produced (ABCS, 2014).…”

Agronomic Performance of Millet Plants Grown in Soil Fertilized With Organic Wastes

“…Thus, soils with plenty of organic matter can be cultivated with diverse crops, such as millet, a crop that has been increasingly used in agricultural areas. The use of poultry litter and swine manure as a source of nitrogen in major grain crops well documented in the literature; due to the high nitrogen content in these organic matter and the high demand of N by grasses, these plants presents, in most cases, positive responses to the organic matter application (Musa et al, 2012;Lyimo et al, 2012;Pinto et al, 2014;Basso et al, 2017). In addition it should also be considered, there need strategies to reduce the volume of waste, maximize their fertilization potential and reduce the environmental pollution (Silva et al, 2016).…”

“…This crop is used to produce green biomass for forage, dry biomass for soil cover in no-tillage system, and grain production for animal feed, and seeds (Fontaneli et al, 2012). Compared to other traditional crops such as soybeans and corn, millet (Panicum miliaceum L.) is a lesser-known culture and studies regarding this crop are still uncommon (Basso et al, 2017).…”