Effects of Sugar Beet Factory Lime, Vinasse, and Compost Mixed with Vinasse Application on Sandy Soil Properties and Canola Productivity

Abstract

Large amounts of sugar industrial wastes such as sugar beet factory lime (SBFL) and vinasse (V) are producing annually causing some problems to the environment if not exploited or recycled. Sandy soils and new reclaimed soils are suffering from lack of water retention, low fertility and thus low productivity, requiring more attention to maximize their water and nutrients supply potentials using new and low-cost soil conditioners. Therefore, it was though useful to use sugar factory by products in solving such problems in sandy soils. For this purpose, a field experiment in a completely randomized experimental design with three replicates was conducted through two successive growing seasons (2016/2017 and 2017/2018) in sandy soil, to study the effect of SBFL at a rate of 10 t/ha, V in irrigation water (5 ml/L) and compost mixed with vinasse, CMV at 1:1 rate on some selected soil physico-chemical properties and canola productivity. Results showed that, application of CMV followed by V and SBFL significantly increased soil organic matter, soil available macro-nutrients (N, P and K) and water holding capacity. Meanwhile, soil bulk density and hydraulic conductivity values were decreased subjected to conditioners application, confirming their suitability in improving sandy soil properties for sustainable agriculture. Consequently, canola seed yield, oil and protein content increased significantly due to CMV, V and SBFL application. From view point of water, the highest values of canola water productivity were obtained under CMV application followed by V and SBFL compared with control, favoring their suitable use to get more crop with less drop in sandy soils. Economically, application of SBFL achieved the higher seasonal net return and benefit cost ratio with lower specific cost followed by V and CMV respectively. The study, therefore recommends using CMV to improve the sandy soil properties and its productivity, despite its relatively low economic return compared to other conditioners, given the high-water productivity of CMV application and alleviating the high salinity of V application.

Effect of Soil Amendments and Foliar Application of Potassium Silicate on Wheat Plants Grown under Sodicity Conditions

“…While the beneficial effect of sugar lime mud compared to corresponding untreated soil may be attributed to its content of organic matter (7%), which have a great role in improving soil fertility. Similar results were obtained by Kheir and Kamara (2019) who consider one of the first researchers studying the effect of sugar lime mud on Egyptian soils. Regarding the foliar application of potassium silicate, the rate of 1500 mg L -1 K2SiO3 was the superior one followed by the rate of 1500 mg L -1 K2SiO3 and lately the rate of 0.0 mg L -1 K2SiO3 (control treatment).…”

Effect of Humic Acid Application on Quantitative Parameters of Sugar Beet (Beta vulgaris L.) Cv. Shirin

“…Humic acids contain form complexes and ions that are commonly found in the environment creating humic colloids (El-Hassanin et al, 2016;Kaya et al, 2018). Fulvic acids are humic acids of lower molecular weight and higher oxygen content than other humic acids however, they are commonly used as a soil supplement in agriculture (Kheir and Kamara, 2019). Besides, these substances decrease the negative effects of chemical fertilizers (Osman and Rady, 2012;Aly et al, 2017).…”

Oil Yield and Nutrients Uptake by Irradiated Canola (Brassica napus L.) in Response to Different Nitrogen and Irrigation Water Sources.

“…The world production of canola is estimated by approximately 68.20 million mega-grams in 2019/2020 (USDA, 2020) with an average production yield reached 5.717 Mgha -1 (Djaman et al 2018). In egypt, canola is grown as a winter oil seed plant (elshazly et al 2019) with a relatively low yield productivity, ranging approximately from 1.9 Mgha -1 (Hozayn and el-Mahdy, 2017)to 3.145 Mg ha -1 (Kheir and Kamara, 2019). In order to raise canola productivity in soils of egypt, the following protocols should be taken into account (1) improving the nutritional status of the grown plants and (2) inducing further positive physiological changes in plants to take up more soil nutrients.…”