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All publications of “Claudinei Kappes”

3 results

Reference Values of Grain Nutrient Content and Removal for Corn

Aildson Pereira Duarte ORCID logo , Mônica Ferreira de Abreu, Eros Artur Bohac Francisco, Douglas de Castilho Gitti, Gabriel Barth, Claudinei Kappes

13/May/2019

ABSTRACT: Unchanged reference values of grain nutrient contents for corn have been used for over 20 years, despite yield increases, the development of new hybrids, and modifications to cropping systems, especially the establishment of in-season second crops and the wide adoption of no-tillage. This study measured macro- and micronutrient contents in corn grains from different regions, in the first (summer) and second (fall) crop, to update the reference values of estimated nutrient removal. A secondary objective was to determine whether […]

Maize grain yield in response to different soil management and nitrogen rates

Claudinei Kappes, Orivaldo Arf, João Antonio da Costa Andrade

01/Oct/2013

Research has been conducted to identify the best nitrogen (N) rate for maize in most diverse types of soil management. However, there is no agreement on the results, once the dynamic of N is influenced by soil management and cover crops. This study evaluated dry mass production and nutrient uptake by cover crops, agronomic parameters and grain yield of maize in response to soil management and N rates. Field trials were carried out in Selvíria, Mato Grosso do Sul State, […]

Effects of cover crops, soil management and nitrogen rates on nutritional and agronomic attributes of maize

Claudinei Kappes, Orivaldo Arf, João Antonio da Costa Andrade

01/Oct/2013

Research has investigated the best nitrogen rate for maize under the most diverse types of soil management. The aim of this study was to evaluate the influence of cover crops, soil management and topdressed N rates on the dry matter production, nutritional status, plant lodging, plant height and first-ear insertion of maize. Field experiments were carried out in Selvíria, Mato Grosso do Sul State, Brazil, in the growing seasons of 2009/2010 and 2010/2011, on a clayey Rhodic Haplustox (20o 20′ […]