optimum management of intra- and interspecific competitions are key subject in most agroecosystems. the objective of this experiment was the study effect of intra- and interspecific competitions and n rates on yield and yield components of wheat which was carried out in agricultural faculty of shahid chamran university of ahvaz during 2011-2012. the experimental design was split–plot based on r...

Treebook 6 Treebooks are freebooks. They are published by Treemail according to the criteria of free, independent, original thinking and high quality warranted by the scientific performance of its authors. Treebook 3: Chinantec shifting cultivation: InTERAcTIVE landuse. A case-study in the Chinantla, Mexico, on secondary vegetation, soils and crop performance under indigenous shifting cultivati...

Abstract IoT makes it possible to automatically adjust pH based on sensor numerical data for NFT hydroponic lettuce. In this research, we use sensors of light intensity, farm temperature , humid reservoir level the outside farm, at Kartika Farm and Turus Asri. Data were taken five cropping periods. We got different adjustment pattern these Total Dissolved Solids (TDS) control. Furthermore, Farm...

the current study was carried out to examine sugar beet growth pattern in climatic conditions of hamedan, iran and to recognize the factors affecting its quantity and quality as well as the physiological indices. two sowing date experiments were conducted on the basis of a randomized complete block design with four replications and 11 harvests. the plots were destructively sampled and the growt...

In a runoff irrigation system using levelled basins, the water uptake patterns of different plant species (Acacia saligna (Labill.) H. L. Wend. and Sorghum bicolor (L.) Moench.) with contrasting root and shoot development were compared. Rainfall amounts during 1995 led to enough runoff water for realizing two cropping cycles. The amount of irrigation water was sufficient to fill the moisture-de...

The research intends to shed some light on the polarised debate about the use of agricultural biotechnology in the developing world, especially in Africa. The research reported here charts the pattern of smallholder adoption and the agronomic/economic impact in the first two seasons of the release of a genetically-modified (GM) crop – Bt cotton – in the Republic of South Africa. The paper discu...

In line with the critical comments formulated in relation to the S-shape global solar radiation estimation method, the original formula was improved via a 5-step procedure. The improved method was compared to four-reference methods on a large North-American database. According to the investigated error indicators, the final 7-parameter S-shape method has the same or even better estimation effic...

Agriculture and farming worldwide are responsible for numerous environmental threats, 11 including degradation of land and water resources depletion. Underlining the dynamic interaction 12 between bio-physical and socio-economic drivers is the key towards a more sustainable land and 13 water management. With regard to a highly developed agricultural area in southern Italy, 14 multi-regression m...