Pea yield and its quality depending on inoculation, nitrogen and molybdenum fertilization

Abstract

The influence of seed inoculation with a bio-preparation of nodule bacteria Rhizobium leguminosarum, fertilization of 0, 40, 80, 120 kg N/ha and molybdenum topdressing on the yield of green mass, dry ma�er, seed, average number of pods per plant, average number of seeds per pod, average nodule number per plant, nodule dry weight as well as plant and seed protein concentration were studied during the two years of investigations on two soils -Mollic Gleysols and Eutric Cambisols. The highest values of all investigated parameters were obtained in the inoculated seed variants with molybdenum application, except the average nodule number per plant where the highest values were achieved in variants without molybdenum. The effect of nitrogen fertilization depended on the soil type, i.e. its chemical properties. The largest number of the investigated parameters obtained the highest values as a result of fertilization with 40 kg N/ha on Mollic Gleysols (3.96% humus). Thus, seed yield was 4.02 t/ha, nodule dry ma�er 0.482 g per plant whereas seed protein concentration was 26.91%. The largest number of the investigated parameters on Eutric Cambisols (1.07% humus) obtained the highest values with fertilization of 80 kg N/ha where seed yield amounted to 3.65 t/ha, nodule dry ma�er 0.456 g per plant while seed protein concentration was 26.48%.

Nitrogen fertilization in pea cultivars

“…Table 2 -Grain diameter (GD), number of grains per pod (GP), number of grains per plant (NGP), 100-grain weight (100M), shoot dry matter (DM) and grain yield (GY) of pea cultivars. Brkić et al (2004) and Kakar et al (2002) found maximum number of grains per pod of 5.52 and 6.00, respectively, which were close values to those found in this paper. On the other hand, Silva et al (1990), while evaluating pea cultivars, found a mean number of grains per pod of 4.59.…”

“…The number of pods per plant was of 22.5 and 32.5 with 0 and 200 kg ha -1 doses, respectively. Brkić et al (2004), while evaluating nitrogen application effect on 'Sobel' pea, found a mean number of pods per plant of 7.52 with a 120 kg ha 1 dose. Kakar et al (2002), while studying NPK doses combination in pea, found a number of pods per plant from 13.90 to 33.10.…”

Reaction of garden pea (Pisum sativum L.) to inoculation and nitrogen fertilization in Eastern Croatia

“…Biologically-fixed nitrogen by legumes is produced by solar energy, whereas nitrogen found in fertilizers is produced from non-renewable energy sources (Crews and Peoples, 2004). Agricultural production constantly aims at an environment-friendly production, as well as at decreasing the costs of energy production (Brkić et al, 2004). The main advantage of providing support for biological nitrogen fixation for grain and fodder legumes is the improvement of yield potential without the application of external nitrogen fertilizers.…”

Effet de la fertilisation au molybdène sur la biomasse et le nombre de nodules de <i>Desmodium intortum</i> à différentes périodes de fauche dans l’Ouest Cameroun

“…Des résultats obtenus de cette étude, il apparait que la fertilisation au molybdène a influencé de manière variable la biomasse foliaire de Desmodium intortum en fonction des périodes de fauche. La baisse de biomasse foliaire avec les doses croissantes de molybdène observée à la première période de fauche est contraire aux résultats de Brkić et al (2004) qui ont constaté une augmentation de la biomasse aérienne avec la fertilisation au molybdène mais en présence d'azote sur le pois chiche (Cicer arietinum). Cette différence pourrait donc être attribuée à la présence de l'azote, facteur essentiel de la croissance des plantes qui aurait pu induire une accélération de la croissance dès la mise en place.…”