weather and climate parameters and their effects on crops, is one of the most effective factors in yield increase. agro-climatic studies could be used to determine the potential of various regions and the exploit these resources to the maximum possible extent. in this study, in order to evaluate the agricultural climate of spring canola cultivation in selected stations in hamedan province, the ...

Some crops are protected from viruses by disease-resistance genes. Plants carrying these genes are identified by plant breeders and refined as new varie ties for use in agricul ture through a lengthy crossing programme. However, the appro priate resist ance genes are not always avail able and many crops are susceptible to virus disease. To protect these susceptible crops there is a promising ne...

One of the objectives of conservation agriculture to reduce soil erosion in olive orchards is to protect the soil with cover crops between rows. Andalusian and European administrations have developed regulations to subsidise the establishment of cover crops between rows in olive orchards. Current methods to follow-up the cover crops systems by administrations consist of sampling and on ground v...

The research was based on a pot experiment, in which the response of eight species of crops to soil contamination with fluorine was investigated. In parallel, some inactivating substances were tested in terms of their potential use for the neutralization of the harmful influence of fluorine on plants. The response of crops to soil contamination with fluorine was assessed according to the volume...

................................................................................................................................ 2 Introduction.......................................................................................................................... 3 Background on the U.S. Regulatory System for GE Crops ............................................. 3 Characterization of the Tra...

Weeds may be suppressed by winter cover crops and the use of organic herbicides such as vinegar. Black oat (Avena strigosa) and hairy vetch (Vicia villosa) winter cover crops were planted for 2 years as part of a sustainable production system for cotton in the Lower Rio Grande Valley of Texas, and were till-killed each spring prior to cotton planting. Palmer amaranth (Amaranthus palmeri), commo...

Plant yield depends on the size and productivity of photosynthetic apparatus, which in process plant growth development should reach optimal performance. The article presents indicators apparatus plants depending varietal characteristics, application mineral fertilizers foliar fertilization. highest leaf surface area were observed variant joint fertilizer at dose N30P30K30 fertilization with mi...