اثرکودهای زیستی بر رشد، عملکرد و اجزای عملکرد بادام زمینی

In order to study the effect of bio- fertilizers on growth, yield and yield components of peanut, an experiment
was conducted as factorial based on randomized complete block design with three replications in 2013.
Fertilizers included: 1- Nitrogen complete chemical fertilizer + 50% phosphate chemical fertilizer and biophosphate,
2- phosphate complete chemical fertilizer + 50% Nitrogen chemical fertilizer and Azotobacter, 3-
50% phosphate and Nitrogen chemical fertilizers and bio-phosphate + Azotobacter, 4-100% phosphate and
Nitrogen chemical fertilizers (control). Plant density at three levels (4, 5 and 6 plant/ m2) and mycorrhiza at
two levels (using of mycorrhiza and without the mycorrhiza) were other treatments. Results showed that the
using of mycorrhiza, plant density and bio- fertilizers showed significant effect on maximum leaf area index,
maximum total dry matter, 1000- grain weight and grain yield. Using of mycorrhiza increased 1000- grain
weight, maximum leaf area index and maximum total dry matter. With increasing in plant density from 4 to
6 plants per square meter, maximum total dry matter showed increasing trend, while maximum leaf area
index and1000- grain weight showed decreasing trend. Mycorrhiza × 6 plant/ m2 interaction and using of biophosphate
+ Azotobacter allocated the highest grain yield (2076 kg/ha). The least number of grains per plant
and1000- grain weight with using of mycorrhiza and 6 plant/ m2 related to using of bio-phosphate biofertilizer.