Soil Physical Properties, Dynamics of N P K and Crop Yield as Influenced by Soil Compaction Under No-Till

IPNI-2010-BRA-57

The no-till system of cultivation occupies 95 million ha of cropped land in the world. In Brazil, 25 million ha of cropped land are under such a system of cultivation. The utilization of no-till has been increasing due mainly to a more adequate soil conversation in these areas. Although, soil compaction has been noted as one of the main problems in areas under no-till cultivation for years. Read more


Year of initiation:2010
Year of completion:2012
Map:

Interpretive Summary

2011

The practice of no-till is gaining popularity for several reasons, chief among them being adequate soil conservation in no-till areas. However, soil compaction has been noted as one of the main problems in areas under no-till cultivation for years. Not plowing the soil, plus the traffic of machines in these areas, leads to soil structure alterations resulting in poor soil physical quality and changes in the dynamics of N, P, and K. These conditions can all contribute to crop yield reductions.

2010

The spread of no-till has been increasing for several reasons, but most especially, the trend is due to more adequate soil conservation in these areas. Despite this. soil compaction has been noted as one of the main problems in areas under no-till cultivation for years. Not plowing the soil, plus the traffic of machines in these areas, leads to soil structure alterations resulting in poor soil physical quality and changes in the dynamics of N, P, and K.


Updates & Reports

2011

2011 Annual Report

2010

2010 Annual Report

2011

Project Description


Project Leader

Alvaro Pires da Silva, University of São Paulo


Project Cooperators

Neyde F.B. Giarol, UEPG
Cassio Tormena, UEPG
Bruce Ball, SAC - Scotland
João Carlos M. Sá, UEPG
Adriel F. Fonseca, UEPG
Marcos V. Milléo, UEPG


IPNI Staff

L. Prochnow


Location

Americas \ South America \ BRA \ São Paulo


Topics

best management practices, soil fertility and productivity

Nitrogen (N), Phosphorus (P), Potassium (K)