Buscar
Itens para a visualização no momento 31-40 of 293
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central
(Universidade Federal de Santa Maria, 2005-02-28)
The irrigated áreas are caracterized by an intensification of the land use, and as consequence, an intense use of the soil. This usually results in a higher pressure of the soil structure degradation, causing many times ...
Efeito do calcário em atributos biológicos do solo
(Universidade Federal de Santa Maria, 2005-02-28)
The soil is a complex system composed by live organisms, organic matter, gases, water and minerals parts that interact. In this sense, the soil organisms, besides inhabitants, are part of its composition. In the soil, the ...
Avaliação de sistemas de previsão de ocorrência de phytophthora infestans em batata.
(Universidade Federal de Santa Maria, 2006-02-23)
Late blight in the most important disease of potato crop and it may cause major yield losses in a matter of a few days. The use of forecast modls or systems to predict diseases has the potential of reducing the number of ...
Germinação in vitro de sementes e morfogênese de porongo (Lagenaria siceraria (Mol.) Standl.) e mogango(Cucurbita pepo L.)
(Universidade Federal de Santa Maria, 2005-03-04)
The establishment and germination in vitro can supply a high amount of explants to develop morphogenesis protocols necessary for flowering induction in vitro, haploid and double-haploid plant production, clonal propagation, ...
Variação de alguns elementos micrometeorológicos no dossel de plantas de batata
(Universidade Federal de Santa Maria, 2005-02-28)
Potato (Solanum tuberosum) crop has many cultivation problems such as pests and the diseases, that settle down in the plants if the environmental donditions are favorable. The more important meteorological elements for ...
Tolerância do arroz irrigado ao herbicida clomazone pela ação de protetores de plântulas
(Universidade Federal de Santa Maria, 2009-02-27)
Clomazone is a herbicide used for grass weed control in paddy rice. However, label rate may not provide efficient control for some weed species. For this reason many
times it is necessity to increase the rate to improve ...
Plano experimental para características do rácemo de mamoneira em diferentes espaçamentos entre plantas
(Universidade Federal de Santa Maria, 2009-04-25)
The cultivation of castor beans presents considerable advances in recent years, because it is a promising crop for production of biodiesel. The planning of experiments for evaluation the productivity of castor beans is ...
Avaliação da qualidade fisiológica e sanitária de sementes de abóbora variedade menina brasileira
(Universidade Federal de Santa Maria, 2005-02-04)
Knowing the importance of to evaluate the physiological and health quality of the seeds, this present work objectived to determine the exposition period of the seeds at shortest temperature in the cold test and the temperature ...
Qualidade fisiológica de sementes de cenoura e abóbora classificadas por tamanho
(Universidade Federal de Santa Maria, 2009-04-30)
Carrot (Daucus carota L.) and pumpkin (Cucurbita moschata) production is very important as food because they have important nutritional and pharmacological properties. High physiological quality of seeds of these species ...
Qualidade de sementes de arroz irrigado submetidas a diferentes temperaturas na secagem estacionária
(Universidade Federal de Santa Maria, 2005-06-28)
Obtain rice seeds with high quality are necessary to make the harvest close to physiologic maturity, when the seeds showed high moisture. Then, drying process is considered necessary, nevertheless the drying temperatures ...