Previous investigational work on the nutrition on the strawberry has been concerned largely with the relationship of soil and fertilizer treatment to growth and yield (5). While these studies have increased greatly the knowledge of the fertilizer requirements of the strawberry, they did not describe the symptoms of mineral deficiencies nor show the mineral composition of the plant and fruit. It...

The rapid growth of the economy in China has caused dramatic growth in the industrial and agricultural development in the Yellow River (YR) watershed. The hydrology of the YR has changed dramatically due to the climate changes and water management practices, which have resulted in a great variation in the fluxes of riverine nutrients carried by the YR. To study these changes dissolved nutrients...

Morocco harbors the largest reserves of rock phosphate worldwide. The natural rock phosphate may constitute a valuable alternative source of phosphorus fertilizer, when a biotechnological process could be applied to promote its solubilization and make phosphorus available to the plants (Hamdali et al., 2008a; Chang and Yang, 2009; Park et al., 2011). Bioinoculums are most promising fertilizers ...

considered is an important objectives of sustainable agriculture,environmental protection and achieving inclusive development.therefore it seems essential method that can reduce the excessive consumption of chemical fertilizers.the purpose of this study was to assess the impact of plant growth promoting microorganisms and effect of combination nutrition systems,chemical and bacterial on stages ...

A method of measuring amorphous ferric phosphate in the presence of crystalline ferric phosphate is described. This procedure is important because there appears to be a big difference in availability between the amorphous and crystalline forms of ferric phosphate. This difference has been proven for two situations. In the first situation, when amorphous ferric phosphate is used as the source of...

introduction: in iran, tuberose is ranked the forth after gladiolus, rose and carnation. these flowers are known as high quality products among which maximum exportation belongs to tuberose and gladiolus. in plant cultivation and development, adequate provision of nutrients is of crucial importance. tuberose needs plenty of nutrients to obtain the desirable quality and flowering. hence, tuberos...

Phosphorus (P) limits the production of maize, one of the major food crops in China. Phosphate-solubilizing bacteria (PSB) have the capacity to solubilize phosphate complexes into plant absorbable and utilizable forms by the process of acidification, chelation, and exchange reactions. In this study, six bacteria, including one Paenibacillus sp. B1 strain, four Pseudomonas sp. strains (B10, B14,...

Abstract: The objective of this work was to evaluate the effect a microbial fertilizer, produced from phosphate and potassic rocks earthworm compost, as an alternative conventional fertilizers, on lettuce (Lactuca sativa) nutrients soil attributes. experiment conducted in consecutive cycles (30 60 days) Lorca region, municipality Murcia, Spain. fertilization treatments were: 100% recommended ra...

This chapter provides information on some recent developments of fertilizer production and use that improve nutrient efficiency and minimize environmental impact. The nutrients discussed are mainly N, P, and S. Improving N nutrient efficiency includes use of (1) controlled-release coated urea products, (2) slowrelease urea–aldehyde polymer products, (3) urea supergranules for deep placement, (4...