The Use of Organic Biostimulants to Help Low Input Sustainable Agriculture

Abstract

ABSTRACT. The use of biostimulant compounds in forestry and agriculture offers significant opportuni for farmers, according to findings from current university researc ! and field trials. Improved root and shoot growth, better stress resistance, better root growth potential, and reduction in nitrogen levels of fertilization are some of the possibilities that these compounds connote to sustainable agriculture.

Study on the Response of Statice Plants (Limonium sinuatum, L.) to Humic Acid Application

“…The results are in accordance with those obtained by Russo and Berlyn, (1990) who revealed that chlorophyll contents of Lolium perenne were significantly increased by HA application. El-Ghamry et al, (2009) reported that chlorophyll content of faba bean plants significantly increased by foliar application of humic acid.…”

“…Another explain could be due the function of Humic acid which play an important role in increasing cell membrane permeability, oxygen uptake, respiration and photosynthesis, phosphate uptake, and root elongation (Russo and Berlyn, 1990).…”

Increasing Nitrogen Efficiency by Humic Acid Soil Application to Squash Plants (Cucurbita pepo L.) Grown in Newly Reclaimed Saline Soil

“…(Muscolo et al, 1993 andSchmidt, 2000). In addition, HA has been claimed to promote plant growth by increasing cell membrane permeability, oxygen uptake and photosynthesis, nutrient uptake, and root cell elongation (Russo & Berlyn, 1990, Böhme & Thi Lua, 1997and Nardi et al, 2002. The present findings were in harmony with those outlined by Abou Zied et al (2005) who found that application of humic acid improves the productivity and its quality of some crops grown on a sandy soil.…”

“…These compounds are the products of decomposition of plant tissues and are predominantly derived from lignified cell walls. The major functional groups of humic acids include carboxyl, phenolic hydroxyl, alcoholic hydroxyl, ketone and quinoid (Russo & Berlyn, 1990). The most beneficial effects of humic substances on plant growth may be related to their positive effects (i.e.…”

“…increase of fertilizer efficiency and/or reducing soil compaction) on growing media (Nardi et al, 2002). In addition, the mechanism of humic acid activity in promoting plant growth has been proposed to be increasing cell membrane permeability, oxygen uptake, respiration and photosynthesis, nutrient uptake and root cell elongation (Russo & Berlyn, 1990, Böhme & Thi Lua, 1997and Nardi et al, 2002. The effects of humic acid on tomato seedling growth in some growing media were investigated (Loffredo et al, 1997, Pertuit et al, 2001, Atiyeh et al, 2002, Nardi et al, 2002and Osman & Rady, 2012.…”