fertilizer Articles
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Evaluation of zone soil sampling approaches for phosphorus and potassium based on corn and soybean response to fertilization
Soil sampling approaches have been compared based on soil-test variation. This study evaluated sampling approaches for P and K based on yield response to fertilization. Strip trials were established on four fields for P and three fields for K managed with corn (Zea mays L.) and soybean (Glycine max L. Merr.) rotations and evaluated 3 or 4 yr (27 site-years). Treatments replicated three to four ...
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Hormonal changes caused by the xenia effect during grain filling of normal corn and high-oil corn crosses
The xenia effect results from the cross-fertilization of nonrelated lines of crops, which causes a grain to produce a germ or embryo that is much larger than average. It is a significant genetic component in TopCross grain production systems, which can affect grain yield and quality. This study measured hormone variations during grain filling of normal corn (Zea mays L.) hybrids, and normal corn ...
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Determination of a critical nitrogen dilution curve for spring wheat
Plant-based diagnostic tools of N deficiency can be based on the concept of critical N dilution curves describing whole-plant critical N concentration (Nc; g kg–1 of dry matter [DM]) as a function of shoot biomass (W; Mg DM ha–1). This has been tested for several crops, including winter wheat (Triticum aestivum L.) but has not been tested for spring wheat. Our objectives were to determine a ...
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Improving the fermentation characteristics of corn through agronomic and processing practices
This study determined the influence of corn (Zea mays L.) hybrids, N availability, grain harvest moisture, and drying temperatures on dry-mill ethanol production. Six hybrids, ranging from 92 to 108 d in relative maturity (RM), were planted at two locations over 2 yr. One of four N fertilizer treatments were applied. Grain was hand-harvested at grain moistures of 20 and 25%. Grain was dried to ...
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Relationship between Phosphorus and Nitrogen Concentrations in Spring Wheat
Efficient management of P in crop production requires the development of tools to quantify the P status of plants. Our objectives were to establish the relationship between P and N concentrations of spring milling wheat (Triticum aestivum L.) during the growing season and, in particular, to determine the critical P concentration required to diagnose P deficiency. Shoot biomass and P and N ...
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Aerial color infrared photography to optimize in-season nitrogen fertilizer recommendations in winter wheat
Remote sensing in the form of aerial color infrared (CIR) photography has been shown to be a useful tool for in-season N management in winter wheat (Triticum aestivum L.). The objectives of this study were (i) to develop a methodology for predicting in-season optimum fertilizer N rates for winter wheat at growth stage (GS) 30 directly from aerial CIR photography and (ii) to quantify how the ...
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Boost grain preservation before production
Better grain storage would save money and feed over a billion, says Digvir S. Jayas. It deserves more attention. Annually over 2.6 billion tonnes of grains — cereals, oilseeds and pulses — are grown and then stored along the chain from producers to consumers. Most countries do not systematically report how much grain becomes unfit for human consumption during storage, but anecdotal ...
By SciDev.Net
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Montana ISOBUS pneumatic seeder
Agriculture 4.0 for seed drills The Montana pneumatic seed drill is highly appreciated both for its versatility of use and for the high degree of customization. Available in TL mechanical version and in VRT electric version, both can be equipped with the ISOBUS system. It will therefore be possible to communicate the electronic control system of the seeder with the Universal Terminals ...
By Mascar SpA
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Corn Production in the Bowen Food Basin - Case Study
In Bowen, Queensland, in 2010, Hibrix was compared with a high NPK mineral fertiliser program for the production of maize cv. Hycorn 675IT on an alluvial sandy loam soil irrigated via sub-surface drip tape. At commercial harvest, cobs from 20 randomly selected plants per plot from were harvested, weighed and the length, girth at the cob base and length of tip not filled with kernels was measured. ...
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IoT on the farm
How to benefit from connected devices on your farm A growing number of farmers are using the internet of things (IoT) to save time, increase production and reduce costs. So, what is IoT and how can you benefit from using IoT solutions and connected devices in your ...
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