Calcium-sorbitol Chelating Technology and Application in Potatoes

Abstract

Researches on low-molecular organic compounds are concentrated in amino acid and Humic acid chelating fertilizer, but few in sorbitol chelated calcium. In this study, selecting sorbitol as chelating agent, the technological conditions of chelating sorbitol with calcium and the effect of sorbitol chelated calcium on potato were studied. The impact factors on the stability of the fertilizer were investigated, including sorbitol dosage, pH value, chelating time and temperature. Then a field experiment was conducted on potato. Three treatments included water sprayed as a control, calcium nitrate and sorbitol chelated calcium sprayed. Each treatment had three replicates. The results showed that by orthogonal experiments, the sorbitol dosage has the greatest influence on the stability of the chelating system. The optimum conditions for the synthesis were determined as follows: The sorbitol dosage of 12 g, the chelating temperature of 50°C, the pH of 4 and the chelating time of 45 min. Compared with those of potatoes fertilized with inorganic calcium nitrate, the yield of potatoes sprayed with sorbitol chelated calcium increased by 14.23% and their marketable tuber percentage increased by 3.58%; the nitrate nitrogen content in potatoes decreased by 11.89%; the accumulation of phosphorus and potassium in potato tubers increased. Generally, the application effect of our prepared sorbitol chelated calcium on potato was remarkable.

Impact of Foliar Application of Calcium Nitrate and Chelated Calcium in Combination with Boric Acid on the Vegetative Growth, Yield, Quality Components and Insect Control of Globe Artichoke

“…Edible part weight: Plants sprayed with both 380 ppm and 760 ppm Ca-EDTA plus boric acid produced the highest weight of edible part in both tested seasons (Table 4). These results are in harmony with those obtained by Li et al, (2020) they found spraying Ca-EDTA had better effect in potato yield than spraying calcium nitrate. The weight of the edible section can be increased by adding boron, which might lead to early nutrient absorption and later transfer to the heads, in this regard, foliar spraying with Ca + B enhances strawberry fruit quality (Mustafa et al, 2021).…”

“…The present results are in harmony with the previous results of Ilyas et al, (2020) found that application of Ca (NO3)2 + B resulted in maximum yield and quality of potato compared with applied each of them individually. Also, obtained results are consistent with Li et al, (2020) they found that marketable tuber percentage of potatoes sprayed with Ca-EDTA was better than that treated with Ca (NO3)2 and (Liu et al, 2021) on peanut Chemical constituents and nutrient contents. Dry matter content percentage: Data in (Fig.…”

“…Furthermore, treated plants with both760 ppm calcium nitrate and 760 ppm Ca-EDTA combining H3BO3 had the highest diameter in the second season (Table 4). Similarly, increasing Ca and B concentrations reduced the number of smaller tubers in the plant (Ilyasa et al, 2020) and Ca-EDTA-spraying on potatoes resulted in a significantly higher rate of large tubers (Li et al, 2020). Edible part weight: Plants sprayed with both 380 ppm and 760 ppm Ca-EDTA plus boric acid produced the highest weight of edible part in both tested seasons (Table 4).…”

Effects of Foliar Fertilization: a Review of Current Status and Future Perspectives

“…Their stability and biological value are affected by both their physical and chemical coefficients, including the chelation rate in particular, as well as the chelation strength (among other parameters) (He et al 2019a), which can be affected by chelation conditions, such as the reaction temperature, reaction time, and pH value of reaction system (He et al 2019b). Plot and field experiments (Li et al 2020a;Li et al 2020b) have shown that the application effects of sorbitol-complexed Ca on potato vary by its chelating process. Therefore, it is necessary to find out the effect of chelation conditions on the chelating fertilizer efficiency.…”

Effect of Sorbitol Calcium Chelate on Yield and Calcium Nutrient Absorption of Peanut

“…The proportions of chelated and non-chelated calcium were determined using detection methods developed in-house (Yan et al, 2018a-b;Bai et al, 2020). Based on field tests of potato, cucumber and strawberry, peanut (Li et al, 2020;Li, 2018;Yang, 2017), which has a high calcium requirement, was investigated in this study. The objective was to systematically analyze the effects of sorbitol-chelated calcium on peanut growth and nutrient uptake under different fertilizer treatment schemes and various chelated calcium spray concentrations.…”