Purpose The aim of the present work was to study the effect of humic preparation on the
yielding capacity of winter wheat, the dynamics of mineral nutrients in the rhizosphere, and …

腐殖质(HS) 是生物体外具备生物学活性的最稳定有机物形式之一. 本文综述了HS 的化学组成,
结构特征和生理活性, 依据HS 化学组成, 结构特征和生理活性的相互关系探讨了HS …

A field trial was conducted through 2015 and 2016 growing seasons to study the effect of
nitrogen fertilizer sources and foliar spray with molybdenum (Mo), salicylic acid (SA) and …

Background The present study was carried out during the two successive seasons of 2016
and 2017 on “Kalamata” olive trees (Olea europaea L.), at a private orchard located on …

This study investigated the impact of fertilization treatments on mature, forty-year-old, fully
productive olive trees (Olea europaea L. cv. Koroneiki) in two non-irrigated orchards …

The content of sulfur in soils has been declining. Possible option to supply sulfur into the soil
can be utilization of waste sulfur from biogas production. Two pot experiments with identical …

A lysimeter experiment was carried out at Sakha Agricultural Research Station, Kafr El-
Sheikh governorate, during the growth season of 2013-2014 to investigate the effect of …

A field experiment was conducted during 2018 and 2019 seasons on El-shamia cactus pear
plants orchard about eight years old, grown in sandy soil under drip irrigation system from a …

The field experiment was conducted at two locations, Qlyasan and Kanipanka in Sulaimani
governorate, Iraq. The main aim of this research is, to evaluate the impact of adding various …

Foliar application of nutrients improves the performance and quality of grapes, and silicon is
recently classified as an essential element for plants. For this purpose, a factorial experiment …