fertilizer level Articles
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Evaluation of dandelion as a potential forage species in mixed-species swards
Recent research has indicated that increasing species diversity of the pastures might improve sward productivity and stability. The present experiment evaluates the effect of dandelion (Taraxacum officinale Weber) as a potential pasture species on the performance of a perennial ryegrass (Lolium perenne L.)–white clover (Trifolium repens L.) mixture in terms of total herbage yield, weed ...
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Nitrogen and harvest frequency effect on yield and cost for four perennial grasses
A USDOE and USDA study concluded that more than 20 million U.S. hectares of cropland, idle cropland, and cropland pasture could be converted from current uses to the production of perennial grasses from which biomass could be harvested for use as biorefinery feedstock. This study was conducted to determine the most efficient species, level of N, and harvest frequency from among four perennial ...
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Quantitative trait locus analysis of seed Phosphorus and seed Phytate content in a recombinant inbred line population of common bean
Phytate is an important antinutritional component of legume seeds, which chelates minerals that are essential to the human diet such as iron and zinc. Phytate levels are often correlated with total seed phosphorus (P). The objective of this research was to evaluate quantitative trait loci (QTL) for seed P and phytate content in an inter-gene pool (G2333 x G19839) recombinant inbred line ...
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Corn cob characteristics in irrigated central great plains studies
Escalating fossil fuel cost and concern over global climate change have accelerated interest in cellulosic feedstocks, such as corn (Zea mays L.) cobs, for liquid fuel production. Little information is available about this plant organ. We compiled and summarized available cob data from several recent field studies in the Central Great Plains. Data were collected from two locations in Colorado and ...
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Phosphorus fertility effects on the expression of the low phytic acid barley phenotype
Low phytic acid (LPA) barley (Hordeum vulgare L.) cultivars partition phosphorus (P) in seed tissue differently than conventional wild-type (WT) barley cultivars. A reduction in seed phytic acid (myo-inositol-1,2,3,4,5,6-hexkisphosphate) is coupled with an increase in inorganic phosphorus (Pi). The response of the LPA characteristic to phosphate fertilization has not been previously investigated; ...
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Creating a sustainable food future, installment three: Achieving replacement level fertility
The world’s population will rise from just over 7 billion in 2012 to nearly 9.6 billion by 2050. Most of the world’s regions have already achieved or are close to achieving replacement level fertility. “Replacement level fertility” is the total fertility rate—the average number of children born per woman—at which a population exactly replaces itself from one ...
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Interactive effects of tillage and mineral fertilization on soil carbon profiles
Both tillage and fertilizer management influence soil organic C (SOC) storage, but their interactive effects remain to be determined for various soil and climatic conditions. We evaluated the long-term effects of tillage (no-till, NT, and moldboard plowing, MP), and N and P fertilization on SOC stocks and concentrations in profiles of a clay loam soil (clayey, mixed, mesic Typic Humaquept). Corn ...
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Effects of agricultural production on phosphorus losses from paddy soils: a case study in the Taihu Lake Region of China
A field plot experiment was conducted on two types of paddy soils in the Taihu Lake Region of China from June 2000 through 2002 to assess phosphorus (P) losses by runoff and drainage flow and the effectiveness of rice–wheat double cropping on reducing P losses from paddy soils. Commercial NPK compound fertilizer and single superphosphate fertilizer were applied to furnish 0, 30, 150, and 300 kg P ...
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Discovering the Links Between Boar Management and Fertility
A late 2019 report on boar fertility indicated that “Boars, like sows, must be treated with compassion and dignity, to maintain a positive and economic well-being for the animal and producer.” This is something many UK pig farmers are well aware of, and yet it pays to lean in and listen to a bit more about the latest discoveries of links between boar management and their fertility. ...
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Tillage and fertilizer effects on yield, profitability, and risk in a corn-wheat-potato-wheat rotation
Reduced tillage results in lower production costs and thus may have economic advantages for farmers. However, yield penalties, specific yield risks, or higher nutrient requirements may counteract the positive effects of reduced tillage. This study investigates long-term tillage effects (moldboard plow, and deep and shallow chisel plow) and their interactions with N fertilizer input on yields and ...
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Evaluation of the AquaCrop model for simulating yield response of winter wheat to water on the southern Loess Plateau of China
The objective of this study was to evaluate the performance of the FAO-AquaCrop model in winter wheat in the southern Loess Plateau of China. Multi-year field experimental data from 2004 and 2011 were used to calibrate and validate the model for simulating biomass, canopy cover (CC), soil water content, and grain yield under rainfed conditions. The model performance was evaluated using root ...
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Fertilization of pinus pinea L. seedlings with a sewage sludge-based compost
Two experiments were conducted to evaluate the effect of a sewage sludge-based compost (SSC) on the growth and mineral composition of containerized Pinus pinea L. seedlings. In the first experiment, five different substrates were tested: four binary mixtures of SSC and peat (100% SSC, 75% SSC, 50% SSC and 25% SSC, by volume) without fertilization, and a control substrate (peat-based substrate + ...
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Nitrogen, tillage, and crop rotation effects on carbon dioxide and methane fluxes from irrigated cropping systems
Received for publication December 15, 2008. Long-term effects of tillage intensity, N fertilization, and crop rotation on carbon dioxide (CO2) and methane (CH4) flux from semiarid irrigated soils are poorly understood. We evaluated effects of: (i) tillage intensity [no-till (NT) and conventional moldboard plow tillage (CT)] in a continuous corn rotation; (ii) N fertilization levels [0–246 kg N ...
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How to maintain soil fertility
In order to maintain soil fertility, some low-yield soil (acid soil, alkali soil and salt soil), chemical improvers and irrigation should be used to improve, remove obstacles and improve the fertility level. In addition, reasonable cultivation and rotation should be carried out to regulate the nutrients and water in the soil and prevent some nutrient deficiency and water vapor imbalance. 1. ...
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Commission Finally Proposes Limits on Cadmium in Fertilisers
A new chapter in one of the longest-running sagas in EU environmental policy opened in August when the European Commission launched a consultation on a 15-year programme to reduce the cadmium content of phosphate fertilisers. The idea of limiting the cadmium content of phosphate fertilisers appeared in a Commission strategy on cadmium in 1987. The concern underlying the strategy was the need ...
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How to use organic and inorganic fertilizer together
If we want to improve the operation level of fertilizer production, we need to speed up the improvement of the level of complete fertilizer production line plant. We need to cultivate a new type of fertilizer equipment operation and service main body, and support the development of complete fertilizer production equipment better. Then fertilizer processing enterprises should also make fertilizer ...
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Fertilizer production line should be scaled and standardized
If we want to improve the operation level of fertilizer production, we need to speed up the improvement of the level of complete fertilizer production line plant. We need to cultivate a new type of fertilizer equipment operation and service main body, and support the development of complete fertilizer production equipment better. Then fertilizer processing enterprises should also make fertilizer ...
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Treat Your Home Garden The Way It Should Be – Benefits of Organic Fertilizers
Enriched soil, professional care, sufficient water, enough sunlight, and good quality fertilizers are the key factors to the high-quality growth of plants. Especially in gardens, be it indoor or outdoor, the selection of the right kind of fertilizers plays an important role. The wide range of fertilizers can be vaguely classified in two basic types of fertilizers, Organic or Natural Fertilizers ...
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Nitrogen storage with cover crops and nitrogen fertilization in tilled and nontilled soils
Improved crop and N management practices are needed to increase soil N storage so that N fertilization rate and the potential for N leaching can be reduced in tilled and nontilled soils. We examined the influence of cover crops and N fertilization rates on N inputs from cover crops, cotton (Gossypium hirsutum L.) and sorghum [Sorghum bicolor (L.) Moench] and soil total N (STN) content at the 0- ...
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Main Granulating Methods of NPK Compound Fertilizer Production
NPK fertilizer can supply many kinds of nutrients needed by crops at the same time. The economic benefit is obvious. The production cost can be reduced by using compound fertilizer. Compound fertilizer is not easy to agglomerate, easy to store and use, and is widely welcomed. How to select granulator for NPK fertilizer production line? Several main granulation methods are introduced here. 1. ...
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