The effect of biological and chemical fertilizers on the performance of red bean seed yield and protein at different plant densities in the climatic conditions of Lorestan Province
Subject Areas : Nutrition
Mamak Khorramabadi
1
,
amin farnia
2
,
Shahram Nakhjavan
3
1 -
2 - Department of Agronomy, Borujerd Branch, Islamic Azad University, Boroujerd, Iran
3 - islamic Azad University
Keywords: Plant density, grain yield, nitrogen, beans,
Abstract :
This study was conducted to investigate the effect of chemical and biological nitrogen fertilizer application and plant density on agronomic characteristics and protein content of red bean. The experiment was conducted as a split-split plot in a randomized complete block design with four replications. Plant density treatments (30, 40 and 50 plants per square meter) were placed in the main plots, nitrogen fertilizer in the subplots (120 and 144 kg.ha-1) and biofertilizer treatments (control, rhizobium, nitroxin and a mixture of these two fertilizers) were placed in the subplots. The results showed that the components of grain yield were affected by different experimental treatments, so that the highest grain yield of 3690 kg.ha-1 was obtained in the treatment of simultaneous application of two biofertilizers, Nitroxen and Rhizobium, along with nitrogen chemical fertilizer and at a density of 40 plants.m-2. At a density of 50 plants.m-2 and application of nitrogen chemical fertilizer, the highest biological yield of 9111 kg.ha-1 was obtained. The amount of grain protein was also affected by the experimental treatments, and the highest protein yield of 842 kg.ha-1 was obtained at a density of 50 plants.m-2 with the application of nitrogen chemical fertilizer and the simultaneous application of Nitroxen and Rhizobium. Based on the results of this study, it was determined that in order to achieve the highest bean grain yield in the two regions of Dorud and Borujerd, the treatment of simultaneous application of two biofertilizers, Nitroxen and Rhizobium, along with nitrogen chemical fertilizer and at a density of 40 plants can be recommended.
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