The aim of this paper is to study the influence foliar fertilization on rapeseed cultivation. Rapeseed currently one most important species oil plants in world, being cultivated for oil-rich seeds.The research was carried out agricultural year 2019-2020 experimental field Agrochemistry discipline located within Experimental Teaching Station University Agricultural Sciences and Veterinary Medici...

Cakchiquel farmers in Patzún, Guatemala stated that pest populations have increased in corn crops since they abandoned organic fertilization and adopted synthetic fertilizers. Given the dearth of scientific information about the effects of fertilization practices on pests, a controlled experiment was performed to elucidate these interactions. Pests, their natural enemies, and nutritional status...

This study aimed to evaluate the production and quality of açaí seedlings regarding presence absence controlled-release fertilization under different shading levels. The was conducted at experimental field Embrapa - Acre, using a completely randomized design in 4 x factorial arrangement. factors included four evaluation periods (60, 120, 180, 240 days after transplanting) environments (20%, 30%...

Can fertilization of sugar maple stands lead to increased diameter growth, better crown conditions, and/or added sugar production? We have wrestled questions like these for over a decade at research sites in northwest Vermont. Recently we have begun to expand our understanding of maple nutrition by examining stands in a wider geographic area. The effectiveness of fertilization depends in large ...

This study is to test the effects of Bt gene introduction on the foliar water/nitrogen use efficiency in cotton. We measured leaf stomatal conductance, photosynthetic rate, and transpiration rate under light saturation condition at different stages of a conventional cultivar (zhongmian no. 16) and its counterpart Bt cultivar (zhongmian no. 30) that were cultured on three levels of fertilization...

Knowledge of plant nutritional status allows an understanding of the physiological responses of plants to crop fertilization. A hydroponic experiment evaluated the symptoms of macronutrient deficiency in cauliflower 'Verona' and determined: a) the macronutrient contents of foliar tissues when visual symptoms were observed, b) macronutrients content of foliar and inflorescence tissues at harvest...

Abstract Foliar fertilization is one of the crucial ways for continued cultivation date palm, obtaining best results growth and production, in addition to possibility reduce damage from abiotic stress. Although subjected palm an annual program, it faces some challenges, including low soil availability nutrients, dryness surface, root activity breeding period, alkalinity, as well water scarcity ...

Effective nitrogen (N) management in cotton production is essential in order to achieve proper growth and development. However, soil-incorporated N can undergo a series of chemical conversions along with numerous loss mechanisms (leaching, volatilization and denitrification) that can make N unavailable to the plant. In addition, soil-incorporated N has faced much scrutiny over the years for its...

Carnivore (top-down) and resource (bottom-up) influences in food webs are strong and pervasive, but few studies have investigated their interactive effects in speciesrich terrestrial ecosystems. This study focused on arthropods associated with the dominant tree species, Metrosideros polymorpha (Myrtaceae), in Hawaiian forests. Severe soil nutrient limitation on a 120-yr-old lava flow was remove...

This study compares the effectiveness of multi-micronutrient formulations containing iron (Fe), manganese (Mn), and zinc (Zn) with traditional (EDTA, DTPA, HEEDTA, and EDDHAm) or novel chelates (o,p-EDDHA, S,S-EDDS, and IDHA) and natural complexing agents (gluconate and lignosulfonate). The stability and reactivity of the formulations were studied on batch experiments with calcareous soil and b...