Efeito do tamanho do vaso e do número de plantas por vaso sobre a produção de massa vegetal em experimento de estufa
Palavras-chave:
massa vegetal, tamanho vaso, coeficiente variação, adubação fosfatada, análise variânciaResumo
The objective of this experiment was to study the effect of pot size (0.5; 1.0 and 2.0 kg of soil) and the number of Italian millet plants per pot (5, 10 and 20) on the production of plant material and the statistical precision of an experiment conducted in the greenhouse.
The experiment was harvested 45 days after planting. The plants were clipped close to the soil and dried in an oven for 48 hours at 70° C. The results were expressed as grams of dry matter per pot.
Under the conditions of this experiment, the following conclusions can be drawn:
1. An increase in plant material occurred both with an increase in the pot size and the number of plants per pot.
2. The precision of the experiment decreased as the size of the pot decreased and increased as the number of plants per pot increased.
3, The data indicated that 1 kg pots with 10 to 20 millet plants are recommended for good material production and niger statistical precision of the experiment.
Referências
ARMINGER, W.H., DEAN, L.A., MASON, D.D. & KOCH, E.J. Effect of size and type of pot on relative precision, yields, and nutrient uptake in greenhouse fertilizer experiments. Agron. Journal, Madison, 50 (5): 244-247. 1958.
ARMINGER, W.H. & FRIED, M. Effect of pot size and shape on hield and phosphorus uptake of millet, Agron, Journal, Madison, 50 (8): 462-465, 1958.
BRAY, R.H. Correlation of soil tests with crop response to added fertilizer and with fertilizer requeriment. In: KITCHEN, H.B. ed. Diagnostic techniques for soils and crops. Washington, The American Potash Institute, 1948. p. 53-86.
FASSBENDER, H.W. La adsorcion de fosfatos en suelos fuertemente acidos y su evaluacion usando la isoterma de Langmuir, Fitotecnia Latinoamericana, Turrialba, 3 (1-2): 203-216. 1966.
IBM. International Business Machines Corporation. 1130 Statistical System (1130-CA-06X) User's Manual. 23 ed. Tew York, 1967. 118 p. o . TERMAN, G.L., ALLEN, S.E. & CLEMENTS, L.B. Greenhouse - techniques for soil-plant - fertilizer research, TVA, Muscle Shoals, Alabama, 1966. 63 p.
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
