نتایج جستجو برای: calcium fertilizers

تعداد نتایج: 180799  

Journal: :Environmental science & technology 2012
Sherub Phuntsho Ho Kyong Shon Tahir Majeed Ibrahim El Saliby Saravanamuthu Vigneswaran Jaya Kandasamy Seungkwan Hong Sangyoup Lee

In fertilizer-drawn forward osmosis (FDFO) desalination, the final nutrient concentration (nitrogen, phosphorus, potassium (NPK)) in the product water is essential for direct fertigation and to avoid over fertilization. Our study with 11 selected fertilizers indicate that blending of two or more single fertilizers as draw solution (DS) can achieve significantly lower nutrient concentration in t...

2006
N. A. Slaton K. R. Brye R. J. Norman B. R. Golden J. R. Ross

Few studies have examined the use of poultry litter as an alternative to inorganic P and K fertilizers for flood-irrigated rice. The objective of this study was to compare fresh and pelletized poultry litter to inorganic P and K fertilizers to document the availability of P and K in poultry litter. Inorganic P and K fertilizers, fresh broiler litter, and pelletized litter were preplant-incorpor...

Journal: :Frontiers in plant science 2016
Asia Nosheen Asghari Bano Humaira Yasmin Rumana Keyani Rabia Habib Syed T. A. Shah Rabia Naz

HIGHLIGHTS Rhizobacteria (Azotobacter spp.) have improved the quality and quantity of safflower seed protein.Protein quality was confirmed by SDS-PAGE and new bands were found in response to different combinations of rhizobacteria and lower doses of fertilizers.The PGPR application has reduced the use of fertilizers upto 50%. Protein is an essential part of the human diet. The aim of this prese...

2016
Pengfei Han Wen Zhang Guocheng Wang Wenjuan Sun Yao Huang

Cropland soil organic carbon (SOC) is undergoing substantial alterations due to both environmental and anthropogenic changes. Although numerous case studies have been conducted, there remains a lack of quantification of the consequences of such environmental and anthropogenic changes on the SOC sequestration across global agricultural systems. Here, we conducted a global meta-analysis of SOC ch...

Journal: :Anais da Academia Brasileira de Ciencias 2015
Francisco A Morais Luciano C Gatiboni

The aim of this study was to evaluate P availability, P and C contained in the microbial biomass, and enzymatic activity (acid phosphatases and β-glucosidases) in a Nitisol with the application of mineral and organo-mineral fertilizers. The experiment was performed in a protected environment with control over air temperature and soil moisture. The experimental design was organized in a "5 x 4" ...

Journal: :Pakistan Journal of Biological Sciences 2001

Journal: : 2022

Nutrient balance in the soil support plant growth and yield. The objective of this study was aimed to obtain doses calcium, magnesium, potassium fertilizers relation ratio cations-base (Ca2+, Mg2+, K+) increase latex yield rubber plants. conducted on a plantation Dolok Masihul Sub-district, Serdang Bedagai District, North Sumatra, Indonesia, from January August 2019. treatment used with three f...

Journal: :The Science of the total environment 2012
P Dumortier M Elskens J F Focant L Goeyens K Vandermeiren L Pussemier

Dioxins can enter the food chain at any stage, including crop fertilization. Therefore, we developed a simple method for estimating the introduction of dioxins in the food chain according to various fertilization practices. Using dioxin's contamination data taken from the literature, we estimated that fertilization accounts for approximately 20% of the dioxin inputs on agricultural soils at cou...

2003
Justus von Liebig

This study has been taken up from two viewpoints. First, a study of field and pot experiments, with a view of determining, if possible, the indirect action of various salts when used as fertilizers; to ascertain if the increase in yield obtained from the use of a fertilizer is not due in part to the solvent action which it exerts on the comparatively insoluble phosphorus in the soil. Second, to...

اکبری, مرتضی, سلمان ماهینی, عبدالرسول , غلامعلی فرد, مهدی , میرکریمی, سید حامد , پسندیده فرد, زهرا ,

Nonpoint source (NPS) pollution is a major surface water contaminant commonly caused by agricultural runoff. The purpose of this study was to assess seasonal variation in water quality parameters in Gorganrood watershed (Golestan Province, Iran). It also tried to clarify the effects of agricultural practices and NPS pollution on them. Water quality parameters including potassium, sodium, pH, wa...

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