نتایج جستجو برای: slow release fertilizer

تعداد نتایج: 334740  

Journal: :IOP conference series 2021

Abstract Super absorbent polymer is a new type of functional material that has been researched in recent decades. Due to its special structure and water-absorbing water-retaining properties, it broad field drought resistance, soil improvement crop protection. It conditioner agricultural drought-resistant water-saving materials. Combining with fertilizers prepare forestry slow-release functions,...

Journal: :Nucleation and Atmospheric Aerosols 2023

Rabbit urine was a liquid fertilizer that could be used for agriculture because of its high nitrogen content. The weakness this rabbit if it rains, will carried away by the flow rainwater. encapsulation is solution to above problems. This research aims study process making in alginate bead coated with chitosan as slow-release. An out extruding mixture and sodium into 500 mL CaCl2 50 mM pump var...

2003
C. B. Harrison W. D. Graham S. T. Lamb A. K. Alva

Long-term impacts of alternative citrus nitrogen and water management practices implemented at grower cooperator sites on the Central Florida Ridge were modeled using the nitrogen component of the Leaching Estimation and Chemistry Model (LEACHN). A bromide tracer test was conducted at one representative cooperator site to parameterize and validate the model. Following validation, 50-year simula...

Journal: :journal of agricultural science and technology 2014
s. kumar k. bauddh s. c. barman r. p. singh

a consortium of biofertilizers (azotobacter chroococcum and bacillus subtilis) was applied in conventional as well as organic matrix entrapped granular forms as sole nutrient source in two different doses for cultivation of wheat (triticum aestivum l. cv. pbw-343). a double dose of conventional biofertilizers increased the growth of wheat plants as measured on 30, 60, 90, and 120 days after sow...

2016
Krzysztof Lubkowski

This paper presents the most important issues relating to the infl uence of mineral fertilizers on both the natural environment and human and animal health. The physiological, environmental and economic impact of fertilizer production and application, resulted from a low assimilation of mineral components by crops, has been described. The research on the development and production of a large an...

2014
TAO ZHANG CI FANG PING LI RONGFENG JIANG

Process of struvite (MgNH4PO4·6H2O) precipitation is a promising method for phosphorus recycling. The use of cheap magnesium ore for precipitation struvite as phosphate recovery has been examined. The optimal conditions for precipitation are pH 9.0 and Mg: 4 NH  : 4 PO  molar ratio 1.1:30.7:1. Linear correlation of experimental data is in qualitative agreement with modelling calculation. Surf...

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