A pot experiments was conducted at Dekrnis city, Dakahlia Governorate during the winter season of (2013/ 2014); to investigate the effect of some natural materials as a fertilizer and its effects on crops quality, yield and nutrients uptake of pea (Pisum sativum) variety of "master B".
Nine treatments were arranged in a complete randomized blocks, which were the simple possible combinations among four treatments of some natural materials and two rates of application as follows (phosphate rock (100 and 200 kg.fed-1), mineral sulfur ore (100 and 200 kg.fed-1), potassium rock (100 and 200 kg.fed-1) and feldspar (100 and 200 kg.fed-1).
Each treatment was replicated three times. Thus the total number of replicates were twenty seven included 3 replicates of control for the season.
The obtained results could be summarized as follows:
The mean values of yield (g.plant-1), weight of 100 seeds (g), N, P, K % and its uptakes (mg.plant-1) after 45 and 75 days from planting, N, P and K% and its uptake (mg.plant-1)by seeds of pea after harvest and seed quality as reducing sugar%, non-reducing sugar%, total sugar %, V.C (mg.100g-1) and protein % after harvesting were significantly increased with using these natural materials. After harvesting, the plants gave the highest values with adding sulfur ore.
The highest values of the mentioned parameters were obtained from 200 kg.fed-1 compared to the 100 kg.fed-1 and it had significant effect.
Under any level of fertilization with some natural materials, pea plants were superior with increasing the values of all aforementioned traits than those obtained from the untreated plants. The highest values of yield (g.plant-1), weight of 100 seeds (g), N, P, K % and its uptakes (mg.plant-1) after 45 and 75 days from planting, N, P and K% and its uptake (mg.plant -1)by seeds of pea after harvest and seed quality as reducing sugar%, non-reducing sugar%, total sugar %, V.C (mg.100g-1) and protein % after harvesting were connected with treatments receiving 200 kg.fed-1 sulfur ore.