Incorporated Use Impact of Organic, Bio and Mineral Fertilizers on Potato (Solanum tuberosum. L) Productivity and Quality

Abstract

A field experiment was implemented in 2015/2016 winter season at the Experimental Farm, Faculty of Agriculture, Mansoura University, Mansoura, Egypt, to study the effect of organic, biological and mineral fertilizers on the productivity and quality of potato plant. The experimental design was splitplot design with four replicates. The main treatment (control=without organic and bio(O 0 B 0 )-Organic fertilizer(O 1 B 0 )-bio-fertilizer(O 0 B 1 )-organic fertilizer+bio-fertilizer(O 1 B 1 ) while the sub-main treatment was mineral fertilization at rates of (100%,75% and 50%of fertilizer recommendation dose). The obtained results were: Biological and organic fertilization (B 1 O 1 )+75% of mineral fertilization resulted in a significant increase in the yields of fresh and dry weight, 17100 and 3099.38 kg.fed -1 , respectively. Also, (B 1 O 1 ) led to a significant increase in the (%) of N,P and K in potato tubers, where it gave the highest content of nutrients 1.03, 0.4788 and 2.3%, respectively. While 100% of NPK fertilizers led to a significant increase in the N,P and K percentage(%), they were 0.92, 0.3667 and 1.97%, respectively. There were insignificant differences between the means of B 1 O 1 +75% and B 1 O 1 +100%. Therefore, the treatment of bio+ organic fertilizers with 75% of mineral fertilizers may be simulated with the treatment of 100% of mineral fertilizers, it means that may be saving in mineral fertilization by 25%. With regard to the quality parameters for potato, it was found that for total soluble solids (TSS), protein%, starch%, and %dry matter, the effect of treatment of organic+bio-fertilization (B 1 O 1 ) together was the best treatment for the quality characteristics as well as 100% of the recommended fertilizers dose.

Impact of Bio and Mineral Fertilizers on Potato (Solanum tuberosum L.) Productivity and Quality

“…This increase may be due to the fact that different fertilizers provided good conditions for plant growth and absorption of water and nutrients resulted from improving soil characteristics and increase their fertility and increase the nutrients availability and their absorption by plant roots and thus this reflects on increasing the average dry weight of tuber and increasing the yield. These results are consistent with those obtained with Zelalem et al (2009); Najm et al (2013); Shaheen et al (2014) and El-Zehery (2019).…”

“…The interaction between bio-fertilizer (B1) in combination with KP2 gave the highest fresh tuber yield (17.15 ton.fed -1 ) compared with other treatments, with an increase percent of 38.20% over the control treatment (without bio and KP-fertilizer). The increase in fresh tuber yield as a result of the addition of bio and mineral fertilization may be due to the availability of nutrients in the soil solution, and the ability of organic and bio fertilizers to secrete some hormones in addition to enzymes and vitamins, and this may explain the increase in tuber weight, this is what many researchers have found as Mir and Quadri, (2009) and El-Zehery (2019).…”

Influence of Edible Potato Production Technologies with the Use of Soil Conditioner on the Nutritional Value of Tubers

“…El-Zehery [72] reports that limitations on mineral fertilization in potato cultivation should be implemented with the simultaneous application of organic fertilization, which is consistent with the results of our study (Tables 1 and 2). The starch content of the tubers of the tested Satina variety was the highest on both 100 and 50% NPK fertilization with manure (Table 1).…”

“…It was noted that the starch content on the objects where 50% mineral fertilization and manure were applied was higher compared to the object where 100% NPK fertilization was applied. El-Zehery [72] obtained the highest quality of potato tubers, in terms of starch, after applying organic and biological fertilization with reduced levels of mineral fertilization by 25%. Thus, reducing the dose of mineral fertilization supplemented with organic matter has an effect on limiting the reduction of starch content [72,73].…”

“…El-Zehery [72] obtained the highest quality of potato tubers, in terms of starch, after applying organic and biological fertilization with reduced levels of mineral fertilization by 25%. Thus, reducing the dose of mineral fertilization supplemented with organic matter has an effect on limiting the reduction of starch content [72,73].…”