نتایج جستجو برای: vertisols
تعداد نتایج: 281 فیلتر نتایج به سال:
Mobilization of unavailable phosphorus (P) to plant available P is a prerequisite to sustain crop productivity. Although most of the agricultural soils have sufficient amounts of phosphorus, low availability of native soil P remains a key limiting factor to increasing crop productivity. Solubilization and mineralization of applied and native P to plant available form is mediated through a numbe...
Edaphic variation in plant community composition is widespread, yet its underlying mechanisms are rarely understood and often assumed to be physiological. In East African savannas, Acacia tree species segregate sharply across soils of differing parent material: the ant-defended whistling thorn, A. drepanolobium (ACDR), is monodominant on cracking clay vertisols that are nutrient rich but physic...
Background: Long term regular practice of soybean-chickpea and soybean-wheat system in the growing region is posing severe problems before growers such as low productivity, profitability monetary net return use efficiency due to delayed sowing wheat market value produce well poor economic viability this cropping system. Methods: A field trial was laid out during monsoon (rainy), winter late sea...
Irrigation with wastewater releases pharmaceuticals, pathogenic bacteria, and resistance genes, but little is known about the accumulation of these contaminants in the environment when wastewater is applied for decades. We sampled a chronosequence of soils that were variously irrigated with wastewater from zero up to 100 years in the Mezquital Valley, Mexico, and investigated the accumulation o...
Libation, or the pouring of wine or blood on the ground, was an important element of religious practice in ancient Greek religion (Burkert 1985), indicating reverence for soil. Homer (c . 750 BC, Iliad 14.347) sang how ‘divine soil [χθών δı̂α] made fresh-sprung grass to grow, and dewy lotus, crocus and hyacinth’. A similar epithet ‘sacred soil’ [‘ιερòν πέδoν], which includes the root word for pe...
Health of any soil is influenced by its physical properties to greater extent which has been more prominent in Vertisols due their self-till behavior. Differential application nutrients long-term may alter the at temporal and spatial scales. Inventory on effect different nutrient management practices across depths, especially central India, insufficient. Present study examined (48 years) combin...
Soil salinity due to irrigation is a major constraint agriculture, particularly in arid and semi-arid zones, water scarcity high evaporation rates. Reducing fundamental objective for protecting the soil supporting agricultural production. The present study aimed empirically measure simulate with model, reduction Vertisol by cultivation of Echinochloa stagnina. Laboratory column experiments were...
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