Response of Four Potato (Solanum Tuberosum L.) Varieties to Four Nano Fertilizers

Abstract

Abstract A field experiment was conducted at vegetable field, Department of Plant Production, Technical Agricultural College, Mosul, Iraq during spring season of 2020, to investigate the response of four potato varieties (Arizona, Florice, Laperla, Montreal) to four Nano fertilizers Kind (K, B. Zn, Fe 2 gm. L.−1) with recommend dosage of NPK as well as the recommend dosage of NPK 20:20:20 at 600 Kg.ha−1 as control. The four potato varieties were sown on 26 February in loamy soil at drip irrigation system T-tap. Nano fertilizers were spraying at 2 gm. L.−1 constriction three times in the season. The treatments were arranged in factorial experiment in split plot with in randomized complete block design with three replicates. The results showed Montreal variety give the higher value of average tuber weight (82.022 gm.), total and marketable yield of plant (1048.3, 1007.8 gm.), total and marketable yield of hectare ( 58.241,55.993 ton.ha.−1), dry matter and starch in tuber( 21.877 %, 15.500%). Spraying with four Nano fertilizers kind increase significantly all the parameters of yield and quality compared with control treatment an Zn nano give the higher value of number of tubers per plant (15.177), plant yield (1150.6 gm.), total yield (63.925 ton.ha.−1 ) and marketable yield (61.106 ton.ha.−1) while the higher value of dry matter (22.062 %), starch (15.667 %) an TSS (5.571%) was from K nano.