Switchgrass (Panicum virgatum L.) is being evaluated as a bioenergy crop for the northern Great Plains. Field measurements of CO2, CH4, and N2O flux are needed to estimate the net greenhouse gas (GHG) balance of this biofeedstock. The study objective was to determine effects of recommended Nitrogen (N) fertilization (67 kg ha 1 of N applied) and unfertilized switchgrass on growing season soil-a...

in order to evaluate the effect of different sources and rates of nitrogen the growth and biomass production of purslane, a randomized complete block design was conducted with three replications at the agricultural research farm of shahrekord university in 2012. fertilization treatments were consisted of control (no n amendment), 30 and 90 kg n ha-1in the form of urea fertilizer, 30 and 90 kg n...

Nigerseed as an Oilseed Crop Nigerseed (Guizotia abyssinica, Asteraceae) is native to Africa, from Ethiopia to Malawi, and was probably domesticated in Ethiopia. Early introduction of nigerseed to India was followed by the development of sizeable commercial production (Simmonds 1976) and neighboring Pakistan also cultivates the crop (Weiss 2000). Nigerseed is an important oil crop in Ethiopia a...

of field-grown hinoki cypress (Chamaecyparis obtusa (Sieb. et Zucc.) Endl.) was nondestructively measured at monthly intervals over 1 year with an enclosed standing tree method. The relationship between monthly specific respiration rate and monthly mean relative growth rate at the individual tree level was described by a linear equation. During the dormant season, respiration was used mainly fo...

Nitrogen (N) fertilization potentially affects soil N mineralization and leaching, and can enhance NH3 volatilization, thus impacting crop production. A fertilizer experiment with five levels of N addition (0, 79, 147, 215 and 375 kg N ha(-1)) was performed in 2009 and 2010 in a maize field in Huanghuaihai region, China, where > 300 kg N ha(-1) has been routinely applied to soil during maize gr...

Fertilizer is a powerful productivity-enhancing input, but SSA uses very little. Historical trends are abysmal (Figure 1). In 1970, SSA used <5kg/ha while other developing regions used >15 kg/ha. In the 25 years from 1970 to 1995 fertilizer consumption grew only .23 kg/ha/year. Current use is only 9 kg/ha, down from OBJECTIVES AND METHODS: The research highs of 11-12. This contrasts sharply wit...

The field experiment were conducted during 2013-14 and 2014-15 to study the effect of drip fertigation on nutrient availability, plant parameters yield cauliflower. experiments laid out in randomized block design with four replications six levels (60, 70, 80, 90, 100 110 per cent recommended dose). Recommended doses N, P K are 125, 108 76kg/ha, respectively for cauliflower Himachal Pradesh. Fer...

The field experiment entitled “Influence of Biofertilizers and Nitrogen on Yield Economics Barley (Hordeum vulgare L.)" was conducted during Rabi season, 2022 at Crop Research Farm in the Department agronomy, Naini Agriculture Institute, Sam Higginbottom University Agriculture, Technology Sciences, Prayagraj Uttar Pradesh. treatment consisted three level [Azotobacter, Azospirillum Azotobacter +...

With uncertainty in future irrigation water availability and regulations on nutrient application amounts, experimentally determined effects of “controllable” management strategies such as nitrogen (N), water, and their combination on crop water productivity (CWP, also known as crop water use efficiency) and actual evapotranspiration (ETa) are essential. The effects of various N application rate...

A field experiment was conducted in four levels of sculpture (0, 20, 40 and 60 kg/ha) three varieties Indian mustard (NDR-8501, NDRE-4 Vardan) at Agronomy Research Farm, Narendra Deva University Agriculture Technology, Kumarganj, Faizabad, during 2012-2013. Among various dose the application kg S/ha found optimum for increasing seed yield (15.30 q/ha) oil percentage (39.36%) content mustard. Va...