Forms of nitrogen and phosphorus transfer by runoff in soil under no-tillage with successive organic waste and mineral fertilizers applications

被引：16

作者：

Lourenzi, Cledimar Rogerio ^{[1
]}

Ceretta, Carlos Alberto ^{[2
]}

Riveros Ciancio, Nathalia Haydee ^{[2
]}

Tiecher, Tadeu Luis ^{[3
]}

Stefanello da Silva, Lincon Oliveira ^{[2
]}

De Conti, Lessandro ^{[4
]}

Girotto, Eduardo ^{[5
]}

Avelar Ferreira, Paulo Ademar ^{[6
]}

Vidal, Ricardo Fagan ^{[2
]}

Scopel, Gustavo ^{[2
]}

Marchezan, Carina ^{[2
]}

Brunetto, Gustavo ^{[2
]}

机构：

[1] Univ Fed Santa Catarina, Dept Rural Engn, Rodovia Admar Gonzaga 1346, BR-88034000 Florianopolis, SC, Brazil

[2] Univ Fed Santa Maria, Dept Soil Sci, Ave Roraima 1000, BR-97105900 Santa Maria, RS, Brazil

[3] Fed Inst Educ Sci & Technol Rio Grande do Sul, Campus Restinga,Alberto Hoffmann St 285, BR-91791508 Porto Alegre, RS, Brazil

[4] Farroupilha Fed Inst Educ Sci & Technol, Fabio Joao Andolhe St 1100, BR-98590000 Santo Augusto, RS, Brazil

[5] Fed Inst Educ Sci & Technol Rio Grande do Sul, Campus Bento Goncalves,Ave Osvaldo Aranha 540, BR-95700206 Bento Goncalves, RS, Brazil

[6] Univ Fed Santa Maria, Acad Coordinat, Rodovia Taufik Germano 3013, BR-96503205 Cachoeira Do Sul, RS, Brazil

来源：

AGRICULTURAL WATER MANAGEMENT | 2021年 / 248卷

关键词：

Organic fertilizer; Animal wastes; Nutrients transfer; Environmental contamination;

D O I：

10.1016/j.agwat.2021.106779

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The use of organic wastes in southern Brazil is a common practice in the farms and in many of these, the criterion for defining the doses of organic wastes is to meet the N demand by crops. This may mean the accumulation of chemical elements in the soil, especially in soils managed under no-tillage systems, and enhance the transfer of these elements by surface runoff. The aim was evaluated how successive applications of organic and mineral sources of nutrients in a long-term experiment, managed under no-tillage system in a subtropical environment, influence the transfer of quantities and forms of N and P by surface runoff. The experiment was carried out in southern Brazil, in a Typic Hapludalf soil. The treatments consisted of the application of pig slurry, pig deep litter, cattle slurry, mineral fertilizer and a control, without nutrients. The doses of organic wastes were to meet the N demand by crops. Were evaluated the surface runoff and the transfers of mineral N and forms of P (soluble, particulate, and total) from 2009 to 2013 period. The amount of solution transferred by surface runoff decreased with fertilization and present a negative relationship with the soil organic matter (SOM). The transfers of mineral N increased with the increase in the contents of SOM, but decreased with the runoff. The transfers of P forms present a great relationship with the amounts of P applied and the contents of soil P extracted by Mehlich-1, and more than 55% of total P transferred by surface runoff, in the treatments that received nutrients application, is on soluble form. In addition, the transfer of soluble, particulate and total P was lower with mineral fertilizer application, when compared with organic wastes. This suggest that the use of N demand by crops as a criterium to meet the doses of organic wastes is not adequate in subtropical environment.

引用

页数：14