Maize (Zea Mays L.) plant is one of the most produced cereals around world. Phosphorus (P), which used fertilizers in maize production. P not a renewable resource and next 50-100 years, it may be finish. Moreover, less fertilization limit crop yield production capacity. The purpose study to investigate effects different dosses on uptake its usage efficiency upon under long term fertilizer filed...

An inventory of topsoil soil organic carbon (SOC) content in household farms was performed in a village from a red earth region in Jiangxi Province, China in 2003. In this region, the farmland managed by each household is fragmented, consisting of several plots of land that are not necessarily adjacent to each other. A statistical analysis of SOC variation with land use and household management...

abstract in order to study the effect of sowing date and seeding rate on essential oil content and composition of chamomile (matricaria recutita l.) cv. presov, prepared from slovakia, an experiment was conducted. the experimental design was split-plot in the basic of randomized complete blocked design (rcbd) with three replications. main plots consisted of three sowing dates (6 nov, 5 mar, and...

......................................................................................................................................................... 2 I. THE ENVIRONMENTAL PROBLEM IN BANGLADESH ........................................................................... 4 A. Current Environmental Issues ...........................................................................................

The soils on Imo clay shale residua at Omasi-Agu and Omor areas in Anambra State, Nigeria were sampled order to characterize classify evaluate their current suitability for rice production following standard scientific procedures. generally belong loamy textural classes or finer, especially the subsoil layers. morphological physical properties of showed that poorly drained favouring high water ...

in order to investigate the role of bacillus cogulans on yield of two forage corn cultivars, an experiment carried out at agricultural research center of tehran province during 2009-2010. the experiment design consisted of three randomized complete blocks in a factorial arrangement. investigated treatments consisted of the kind of phosphorus and cultivar. the phosphorus factor included of the a...

in recent years, in order to enhance the health of agroecosystems, concerns on ecological inputs especially to produce medicinal plants, has been increased. in order to evaluate the effects of winter cover crops on pgprs activities and soil nitrogen content in simultaneous application of organic manures and biological fertilizer in a low input production system of cucurbita pepo under minimum t...

Defects of the roll forming process are affected by amount and situation of the strains distribution. The effect of the process parameters on the strain distribution in the round cross section roll forming process has been studied. Finite element and response surface method have been used for process modelling. Then desirability functions approach and overlaid counter plots have been employed f...