Introduction Interest in organic production methods for vegetables continues to increase. Production practices for organic field production of vegetables have a long history, but practices to grow organic vegetable transplants in a spring greenhouse are poorly known. Organic fertilizers and composts are available but the efficacy and rates for use have not been evaluated. Experiments in the sum...

Application of polymer-coated controlled-release fertilizers (CRF) during outplanting has resulted in variable growth responses in the Pacific Northwest (PNW). Results have been linked to several factors, including soil moisture availability. Multiple experiments were designed to examine the influence of CRF on Douglas-fir seedling root architectural development and establishment. Placement of ...

An experimental study was conducted to investigate the effects of nitrogen fertilization on finger millet, with Significant nutrient losses, especially for (N) fertilizers, occurring when chemical fertilizers are directly incorporated into field. These losses primarily result from leaching and volatilization processes under this practice, crops tend utilize only a fraction applied N typically r...

The present investigation was conducted to study the effect of nano fertilizer in growth yield and quality okra (Abelmoschus esculenthus). experiment carried out at instructional farm ICAR- Krishi Vigyan Kerndra, Pathanamthitta, Kerala, during year 2021. laid randomized block design with three replications. Ten different treatments were combinations fertilizers. result obtained treatment T2 (So...

The composting industry has been growing rapidly in China because of a boom in the animal industry. Therefore, a rapid and accurate assessment of the quality of commercial organic fertilizers is of the utmost importance. In this study, a novel technique that combines near infrared (NIR) spectroscopy with partial least squares (PLS) analysis is developed for rapidly and accurately assessing comm...

The activity concentration of naturally occurring radionuclides K, Ra and Th have been measured in different brands of fertilizer samples in Saudi Arabia using sodium iodide gamma spectrometry. The results of measurements showed that the mean (ranges) of specific activities for Ra, Th and K activities in the nitrogen, phosphorus and potassium fertilizers are 64 (35.8 120.7), 17 (3.2 56.8) and 2...

Abstract During the growing season, a field experiment was conducted in one of fields Um Al-Akf region (about 5 kilometers from heart Al-Muthanna Governorate) at 45.23 longitudes and 31.32 latitudes (2021-2022). Three cultivars were produced for first time governorate, they compared to approved variety Ibaa 99, determine impact spraying micro-Nano fertilizers different stages had on growth char...

In many parts of the world food security is at risk. One of the biophysical root causes of falling per-capita food production is the declining quality and quantity of soils. To reverse this trend and increase soil fertility soil and plant nutrients have to be replenished. This review provides a literature survey of experiences of using multi-nutrient rock fertilizers for soil fertility enhancem...

Urine contains about 50 % of the phosphorus (P) and about 90 % of the nitrogen (N) excreted by humans and is therefore an interesting substrate for nutrient recovery. Source-separated urine can be used to precipitate struvite or, through a newly developed technology, nitrified urine fertilizer (NUF). In this study, we prepared (33)P radioisotope- and stable (15)N isotope-labeled synthetic NUF (...