Temporal Impacts of Different Fertilization Systems on Soil Health under Arid Conditions of Potato Monocropping

Abstract

The aim of this study was to determine temporary impacts of different fertilization systems on some labile soil biochemical and biological properties following potato monocropping under arid conditions. Field and incubation experiments were conducted to determine specifically soil organic carbon (SOC); dissolved organic carbon (DOC); dissolved organic nitrogen (DON); microbial biomass C (C mic), N (N mic), P (P mic); bacterial and fungi counts; soil resistance index (SRI); net N mineralization (N min); and some enzyme activity. Levels of SOC; DOC; N min , C mic , P mic ; bacteria and fungi counts; and soil respiration (SR) were significantly increased under organic and integrated fertilization systems compared with inorganic nano or NPK fertilization system, while levels of microbial biomass N (N mic) and DON were markedly increased under nano or fertilizers compared to organic or integrated (organic + inorganic) fertilizers. By contrast, higher values of metabolic quotient (qCO 2) were recorded in nano or fertilizer treatments suggesting that microbial biomass was less efficient under high maintenance of soil carbon. Enzyme activities of dehydrogenase (DH), β-glucosidase (βG), and acid phosphatase (Ac-P) were in the order of organic > integrated > inorganic fertilization systems, while enzyme activity of urease (UR) was in the vice versa order. Integrated fertilization system recorded greater levels of SOC; DOC; N min , C mic , P mic ; and SR relative to inorganic fertilizers even though applied at lower rates. It is, therefore, important for soils under monocropping system to poise organic and inorganic fertilization system that enhances soil health and soil organic matter build-up.

Heavy Metals and Microbial Activity in Alluvial Soils Affected by Different Land-Uses

“…Different soil land-use alter soil microbial characteristics and mensuration the change of soil properties owing to the intensity of agricultural farming system has been a major tool for monitoring soil quality (Neves et al, 2007). Biochemical soil properties, for instance the amount of microbial biomass carbon and microbial biomass nitrogen, in addition to fluorescein diacetate hydrolysis (FDA) ratios, are very delicate to changes in soils because they are directly affected by soil physicochemical disorders caused by intensive cultivation and the intensive application of fertilizers and pesticides (Bogres et al, 2014;Abd El-Azeim et al, 2020;Tang et al, 2020;Khadem et al, 2021). According to the farming system, sugarcane causes a heavy environmental impact.…”

Effects of Cement Kiln Dust on Some Soil Chemical Properties, Growth and Yield of Wheat and Fodder Sorghum

“…Egypt lies in the arid region of the world and its area is 1.0 million Km 2 . Although the unique and vital location of Egypt in the heart of the world, about 95% of Egypt's area is desert lands, which are mainly sandy soils (Abd El-Azeim et al, 2020). The population in Egypt is increasing gradually year after year.…”

“…The food production is not sufficient for the dense population in Egypt. Therefore, in the view point of national security in Egypt, it is important to reclaim and cultivate the desert lands in order to increase the agricultural production to secure the food security (Abd El-Azeim et al, 2020). Sehgal et al (1992) indicated that sandy soils are potentially fertile as observed from their mineralogical make up.…”

Water Stress on Cotton Plants as Affected by Potassium and Nano chitosan-NPK Fertilizer

“…With limited natural resources for future generation, the biggest challenge facing sustainable agriculture is to produce enough food to satisfy a growing population, while protecting the agroecosystem (Lopez-Valdez and Fernandez-Luqueno, 2018;Abd El-Azeim et al, 2020a). Melorose et al (2015) mentioned that world population being to reach about 9.6 billion by 2050.…”