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Simulação da necessidade de irrigação no estado do Rio Grande do Sul para compensar perdas por deficiência hídrica de milho, soja e feijão
(Universidade Federal de Santa Maria, 2004-02-27)
The temporal and spatial variability of the rainfall amount and its distribution is usually the major cause of agricultural yield losses. These variables are responsible for the oscillations in yields of Spring and Summer ...
Propriedade de um nitossolo vermelho após nove anos de uso de sistemas de manejo e efeito sobre culturas
(Universidade Federal de Santa Maria, 2005-03-02)
Long-term use of management systems result in alteration in physical and chemical soil properties and its intensity is related to time, soil and climate conditions. Physical
properties are more susceptible to changes by ...
Dinâmica do nitrogênio sob sistema plantio direto e parâmetros para o manejo da adubação nitrogenada no milho
(Universidade Federal de Santa Maria, 2009-03-27)
Among the several essential nutrients in the nutrition of the maize, without a doubt, the nitrogen (N) is one of the most important. However, most of the time, the amount naturally available in the soil is insufficient ...
Manejo de solo de várzea para cultivo de soja, milho e forrageiras hibernais na fronteira oeste gaúcha
(Universidade Federal de Santa Maria, 2016-12-28)
This study sought to understand the capacity of different management systems of the wetland soil for the maintenance of a physical environment capable of reducing the effect of hypoxia during the cycle dryland crops, as ...