نتایج جستجو برای: soil condition
تعداد نتایج: 490986 فیلتر نتایج به سال:
Response of Sesbania grandiflora to Inoculation of Soil with Vesicular-Arbuscular Mycorrhizal Fungi.
A greenhouse experiment was conducted to determine the influence of two tropical isolates of Glomus fasciculatum and Glomus mosseae on the nutrient uptake and growth of Sesbania grandiflora. Inoculation of sterile soil with the fungi significantly improved growth and nutrient uptake by S. grandiflora, but the response of the legume was markedly better when the soil was inoculated with G. fascic...
an experiment was conducted to optimize consumption of zinc and evaluate of zinc effects on quantitative and qualitative traits of winter wheat under saline soil condition. it was done by three replications in randomized complete block design. the experiment had four treatments as control without zn, 40 kg.ha-1 zn as znso4, 80 kg.ha-1 zn as znso4 in soil and 120 kg.ha-1 zn as znso4 in soil. ele...
The aim of the present work has been directed to investigate the physico-chemical status of the soil at Majherdabri area of Jalpaiguri district, West Bengal, India. The soil samples have been collected using conventional method during summer (April) and winter (November). The samples collected from the adjacent forests serve as the control. The pH, organic C, available P, and K are determined b...
Bacteria able to produce biosurfactants can use petroleum-based hydrocarbons as a carbon source. Herein, four biosurfactant-producing Pseudomonas aeruginosa strains, isolated from oil-contaminated saline soil, were combined to form a bacterial consortium. The inoculation of the consortium to contaminated soil alleviated the adverse effects of salinity on biodegradation and increased the rate of...
With the aim of the improvement water retention in dry land condition by green manure application, this study was carried out with or without rye green manure along with 4 nitrogen fertilization rate in green manure-wheat rotation system between 2001 – 2007 years. Results showed that the green manure application effects were significant on the soil aggregate stability, soil bulk density and ava...
Evaporation from soil columns in the presence of a water table is a long lasting subject that has received great attention for many decades. Available analytical studies on the subject often involve an assumption that the potential evaporation rate is much less than the saturated hydraulic conductivity of the soil. In this study, we develop a new semi-analytical method to estimate the evaporati...
abstract in this study, evaluation of swap model in simulating crop yield, water and salt movement in soil were investigated in the wheat- fodder maize cultivated units. the research was conducted in the voshmgir network, golestan province. the crop yield, soil humidity and moisture data in different times of agriculture year of 2007-2008 were measured. the measured and simulated data were anal...
Microwave remote sensing techniques are used, among others, for temporally and spatially highly-resolved observations of land-surface properties, e.g., for the management of agricultural productivity and water resource, as well as to improve the performances of numerical weather prediction and climate simulations with soil moisture data. In this context, the effective dielectric constant of the...
Understanding soil evaporation in reforestation processes in an area of extreme drought is important. We examined the effects of drip-irrigated, high-salinity groundwater on the formation of soil salt crusts and subsequent soil evaporation in the Taklimakan Desert Highway Shelterbelt. Soil evaporation was measured using micro-lysimeters (MLS, 20 cm in length × 10 cm in diameter), and chemical c...
Moisture is one essential condition for seed germination, and poor germination is very costly to growers. There is, nevertheless, little experimental evidence concerning the effects of different percentages of available moisture (5) on germination; more study of the subject is essential. Since most vegetable seeds are planted at shallow depths, there may be rapid fluctuations of soil moisture a...
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