The leaching behavior and structure of Li2O-CeO2Fe2O3-P2O5 glasses incorporated with simulated high level nuclear wastes (HLW) were studied. The leach rates of gross and each constituent element were determined from the total weight loss of the specimen and the leachate analyses by inductively coupled argon plasma spectroscopy (ICP). The gross leach rate of the 4.5Li2O9.7CeO2-34.7Fe2O3-51.5P2O5...

Mercury (Hg) contents in ten chemical fertilizers were determined, and the effect of calcium superphosphate (CSP) on the uptake and translocation of Hg in corn seedlings was investigated by pot experiments. CSP was applied at the levels of 0, 66.7, and 133.4 mg P2O5/kg to Hg-treated (2 mg/kg) and untreated soils. CSP had the highest Hg content (5.1 mg/kg), followed by the NPK compound fertilize...

Abstract The objective of this work was to evaluate sugarcane (Saccharum spp.) yield in response corrective and maintenance phosphorus fertilization Oxisols. Two experiments were carried out randomized complete blocks with four replicates. In the treatments, 150 kg ha-1 P2O5 broadcast incorporated before planting. 40 per year applied over trash blanket. All except control, fertilized 170 planti...

Three studies have been conducted since 2001 to examine rice growth, nutrition, and yield response to phosphorus (P) application rate and time. The three sites represent high-pH silt loam soils (>7.5) with a range of Mehlich 3-extractable P (8 to 41 mg P/ kg). The objective of this research was to measure rice biomass and tissue-P concentration during the growing season and rice grain yield res...

Fertilizer management particularly for mango trees is tedious on alkaline and calcareous soil. Mango (Mangifera indica L.) cv. Langra trees were supplied fertilizer through soil application under bimonthly nutrient application programme to ensure the continuous supply of nutrition to plants throughout the year. Fertilizer (N, P and K) was supplied five times a year at regular intervals while sk...

The response of microbial respiration from soil organic carbon (SOC) decomposition to environmental changes plays a key role in predicting future trends of atmospheric CO2 concentration. However, it remains uncertain whether there is a universal trend in the response of microbial respiration to increased temperature and nutrient addition among different vegetation types. In this study, soils we...

This research demonstrated the feasibility of converting source-separated human urine into a solid fertilizer by means of continuous absorption and solar thermal evaporation using dried water hyacinth as adsorbent. In a preliminary experiment, the dried petioles of water hyacinth (DWH) absorbed urine in a mean rate of 18.78 ml·g within 7 d, retrieving about 3.46% urine dissolved solids (UDS). I...

Background: Considering the high cost of fertilizers and adverse effect its overuse on environment soil health, proper organic manure-fertilizer recommendations basis test values, residual yield targets chilli becomes vital. Methods: Field experiment was carried out Periyanaickenpalayam series Inceptisol order at farmers holding, Dindigul, Tamil Nadu during 2021-2022 after establishment marked ...

The form and opener configuration used to apply phosphorus fertilizer can influence its effectiveness crop response. A growth chamber study was conducted examine the response of (canola, wheat, pea grown in rotation) soil P (monoammonium phosphate struvite), spread (narrow versus wide), rate treatments 0, 20, 40, 60 kg P2O5 ha−1 added canola (B. napus) seed-row, followed by wheat without fertil...