Investigating the Effects of Foliar Spraying with Zinc Chemical Fertilizers and Zinc Nano-Chelate on the Quantitative Yield of Balango Shirazi plant (Lallemantia royleana Benth.)

The research was carried out with the aim of investigating the effects of foliar spraying with micronutrientelements, chemical fertilizers: zinc sulfate and zinc nano-chelate on the quantitative yield and percentage of mucilage in the medicinal plant Balango Shirazi (Lallemantia royleana Benth). The experiment wascarried out in the form of a completely randomized design in three replications in a greenhouse in PakdashtVaramin, Golzar town - the greenhouse of medicinal plants of engineer Hadavand from April 25 to July20, 2019. The tested treatments include: zinc sulfate treatment at three levels (1000, 2000 and 4000mg/liter) and zinc nano chelate at three levels (500, 1000 and 1500 mg/liter) and control treatment(distilled water). The results of the variance analysis table showed that the fresh weight of the plant at the probability level of 1% and the dry weight of the plant at the probability level of 5% were affected by zincsulfate  treatment with  a  concentration of  2000  mg/liter. Also,  the  above  results  showed  that  the inflorescence length at the probability level of 1% and the  seed yield at the probability level of 5% weresignificant under the effect of zinc nano chelate treatment with a concentration of 1500 mg/liter. Theresults of comparing the average data showed that the fresh weight of the plant (22.7 g), the dry weight ofthe plant (10.63 grams) was affected by zinc sulfate treatment with a concentration of 2000 mg/liter. Also, inflorescence length (37.13 cm) and seed yield ( 2.88 g/pot) were significantly affected by zinc nano-chelate treatment with a concentration of 1500 mg/liter.