Stevia (Stevia rebaudiana Bertoni) was recently introduced to Egyptian agriculture in order to produce a natural sweetener (Steviol glycosides ) instead of sugar (Sucrose) to cover some of the lack of sugar production, which reached annually about 0.8 million ton. So, a field experiment was carried out at Mallawi Agriculture Research Station , Minia Governorate , Egypt, during two successive seasons (2014 and 2015) to study the effect of different levels of mineral N fertilization and compost on yield and its quality of stevia (Stevia rebaudiana Bertoni) under Middle Egypt conditions. The experimental design was a split plot in three replicates and the main plot were devoted N fertilizer levels ( 40, 60 and 80 kg N fed -1 ) while compost levels (0, 3 and 6 ton fed -1 ) were allocated in the sub plot. The obtained results revealed that N fertilizer level and/or compost level had a significant effect on plant height (cm) , fresh and dry leaves weight (g plant -1 ) , N, P& K contents of stevia leaves and N uptake kg fed -1 , dry leaves yield kg fed -1 , stevioside (St %), rebaudioside A (Rb%), stevioside yield (kg/fed) and rebaudioside A yield (kg fed -1 ), the remained nutrients ( N,P & K (ppm) and OM % ) in the soil post-harvest of stevia in two growing seasons, except P% of leaf in the 2 nd season for N fertilization. A significant interaction was scored between N fertilizer level and compost rate with regard to plant height (cm) , fresh and dry leaves weight (g plant -1 ) , N % of stevia leaves and N uptake kg fed -1 , dry leaves yield kg fed -1 , stevioside (St %), rebaudioside A (Rb%), stevioside yield (kg fed -1 ) and rebaudioside A yield (kg fed -1 ) of stevia in the two growing seasons. From the present study , it may be concluded that the application of 60 kg mineral N fertilizer + 6.0 ton compost fed -1 was the best treatment for improving the yield and quality of stevia and is advisable to achieve the highest values of rebaudioside A (298.99 and 297.74 kg fed -1 ) ,and net profit of stevia.

he study conducted at private farm in reclaimed sandy soils in the western district of, El-Minia Governorate, Egypt during winter of two successive seasons of 2020/2021, 2021/2022. To investigate the influences of different irrigation regimes, bio-stimulants and their interaction on lettuce growth, yield and chemical composition, A split-plot design was used, the main plot was irrigation treatments (100% of crop evapotranspiration, 80% ETc and 60% ETc), while the bio-stimulants (control, potassium humate (K-H), biofertilizers (EM) and mixture from K-H plus EM) were assigned in sub-plot. The results showed that in most aspects there was a significant affect between 100% or 80% ETc compared to 60% ETc but insignificant between 100% ETc and 80% ETc in both seasons. Moreover, soil application of the biostimulants reduced the negative impact of water deficit compared to control. Combined K-H and EM caused significant increase in all estimated parameters for plant growth and yield. In addition, increase mineral contents, protein and carbohydrate contents in lettuce leaves. In opposite, it causing significant decrease by (23.20, .18.38 and 18.18, 14.33%) for nitrate and proline through both seasons respectively, compared with control. Furthermore, the highest irrigation water use efficiency was recorded with decreasing the required amount of water (60% ETc). Integration both bio-stimulants caused significant increase in irrigation water use efficiency by 58.60 %in the first season and were 59.14% in the second season. Available N, P and K in soil significantly increase with application of mixture of bio-stimulants followed by sole application of K-H.

Two field experiments were conducted in a calcareous soil during summer seasons of 2019 and 2020 at the experimental in a private farm Mallawi, El- Minia Governorate, Egypt to evaluate application of K fertilization at different rates of K2SO4 and non-classic products, i.e. K feldspar, mixture with or without inoculation with the K dissolving bacteria (Bacillus circulans.) soil chemical properties, plant growth, yield and nutritional value of corn (Zea-maize hybrid third 310). Our results proved that inoculation of maize seeds with Bacillus circulans at rate of 36% K2O improved soil pH, EC, soil organic matter content and enhanced the soil available N, P and K concentrations. Also, the growth parameters, yield and nutritional status of the plants were significantly increased by using non-traditional potassium fertilizers particularly in the case of seed inoculated with potassium dissolving bacteria (Bacillus circulans).

An important bulb vegetable is garlic with several nutritional and medicinal benefits (Anti-infective properties such as anticancer). Poultry manure is an ecofriendly, economically viable and considered a suitable solution for overcoming environmental pollution and to improve soil fertility and also increase the qualitative and quantitative of garlic (Allium sativum L.). So, this work was conducted at Mallawi Agriculture Research Station, Minia governorate, Egypt, as well as Laboratories of Horticulture and Food Science Departments, Faculty of Agriculture, New Valley Branch, Assuit University during two winter seasons of 2015/2016 and 2016/2017 to study the influence of poultry manure, sulphur and different levels of phosphorus fertilizer on growth, yield and its components, bulb quality as well as bulb storability of garlic cv. Egaseed 1. The obtained results revealed that there were a significant effect for poultry manure, sulphur and different levels of phosphorus fertilizer on the remaining nutrients such as N, P, K (ppm) and organic matter percentage (OM %) in the soil postharvest, growth, yield and its components, bulb quality, plant nutrient status and uptake of N, P, K and S kg fed. -1 and storability (weight loss %) of garlic blub. The study revealed that application of 5 ton fed. -1 of poultry manure and 100 kg fed. -1 of sulphur and 60 kg P 2 O 5 fed. -1 was the best treatment, because it recorded the higher values of the remaining nutrients, i.e., N, P (ppm) and OM % in the soil postharvest, the highest values of fresh total yield (6.45 and 6.75 ton fed. -1 ) and bulb yield (5.62 and 5.78 ton fed. -1 ), highest values of blub quality (dry matter, total soluble solids, carbohydrates, protein, lipids and ash) percentages, the lowest values of nitrite and nitrate contents (mg kg -1 FW) as well as the lowest values of weight loss percentage of garlic blub during the storage period for 8 months in the 1 st and 2 nd seasons, respectively, would be suitable economical, productivity, quality, storability and health for garlic production in Egypt under experimental conditions.

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