with those choosing to grow wheat as a forage-only or GO crop (Redmon et al., 1995), but they need to follow Winter wheat (Triticum aestivum L.) is the foundation of many a recommended set of management practices to optiagricultural enterprises in the southern Great Plains and is grown primarily as either a grain-only (GO) or a dual-purpose (DP, grazing mize returns. plus grain) crop. Tradition...

Depleted soil quality, decreased water availability, and increased weed competition constrain spring wheat production in the northern Great Plains. New management systems are necessary for improved crop productivity. The objective of our study was to compare productivity and soil water use of spring wheat (Triticum aestivum L.) in four crop rotations (continuous wheat, wheat–pea [Pisum sativum ...

A considerable amount of surplus nitrogen (N), which primarily takes the form of nitrate, accumulates in the soil profile after harvesting crops from an intensive production system in the North China Plain. The residual soil nitrate (RSN) is a key factor that is included in the N recommendation algorithm. Quantifying the utilization and losses of RSN is a fundamental necessity for optimizing cr...

A model to predict Septoria tritici blotch (STB) and leaf rust effects on wheat growth was constructed and evaluated in two steps. At the leaf scale, Bastiaans' approach that predicts the relative photosynthesis of a wheat leaf infected with a single disease, was extended to the case of two diseases, one biotrophic and one necrotrophic by considering the leaf rust-STB complex. A glasshouse expe...

this study is carried out to estimate the potential evapotranspiration (pet) and crop coefficient (kc) for wheat, bl 3235 variety. a lysimeter is installed to estimate pet at the experimental farm of agricultural research center of bhairahawa, which is located in western part of nepal. the blaney-criddle formula is used to estimate the kc for wheat. the estimated values of pet and kc for wheat ...

Table 1: ReacTion of majoR cRop and pasTuRe species To Pratylenchus neglectus, P. teres and P. Penetrans P. neglectus P. teres * P. penetrans * suscepTible modeRaTelY suscepTible ResisTanT suscepTible suscepTible Wheat Barley Field Pea Wheat Wheat Canola Oat Narrow-leafed lupin Barley Oat Chickpea Medic Faba and Narbon bean Oat Field pea Mustard Durum wheat Lentil Canola Faba bean Biserulla Com...

The changing environment affects agriculture introducing sources of uncertainty. On the other hand, policies to cope with risks may have strong impacts on the environment. We evaluate the effects of public risk management programmes, such as subsidised crop insurance, fertilizer use and land allocation to crops. We implement a mathematical programming model of a representative wheat-tomato farm...

Contrasting the two green strength genes of soil, wheat, corn, and the weed, the paper designed a system to identify the weed from the crop. It used the 2GR-B and BP neural network, with the help of pixel-position-histogram diagram, to calculate the area and position of weeds. The result showed that it could identify the weed from the field and crop with an accuracy of 93%. The program gave the...

Simulations of crop yields under climate change are subject to uncertainties whose quantification is important for effective use of projected results for adaptation and mitigation strategies. In the US Pacific Northwest (PNW), studies based on single crop models and weather projections downscaled from a few general circulation models (GCM) have indicated mostly beneficial effects of climate cha...

Durum wheat (Triticum turgidum subsp. durum) is a key crop worldwide, and yet, its improvement and adaptation to emerging environmental threats is made difficult by the limited amount of allelic variation included in its elite pool. New allelic diversity may provide novel loci to international crop breeding through quantitative trait loci (QTL) mapping in unexplored material. Here, we report th...