soil organic matter Articles
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Dryland crop yields and soil organic matter as influenced by long-term tillage and cropping sequence
Novel management practices are needed to improve the declining dryland crop yields and soil organic matter contents using conventional farming practices in the northern Great Plains. We evaluated the 21-yr effect of tillage and cropping sequence on dryland grain and biomass (stems + leaves) yields of spring wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), and pea (Pisum sativum L.) and ...
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Advantages and precautions of NPK organic fertilizer granulator
The humus in organic fertilizer increases the content of soil organic matter, which is beneficial to the formation of good soil structure, especially the increase of water stable aggregate structure, so as to improve the tightness, aeration, water retention and heat status of soil, and has a good effect on the water, fertilizer, air and heat conditions that determine the soil fertility. It is ...
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Six effects of organic matter on maintaining soil fertility
The content of soil organic matter is closely related to the level of soil fertility. Although organic matter only accounts for a small part of the total amount of soil, it plays a significant role in maintaining soil fertility. The manufacturer of organic fertilizer production equipment introduces six important functions of organic matter to maintain soil fertility. 1. Provide nutrition for ...
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Dynamics of atmospheric nitrogen deposition in a temperate calcareous forest soil
In temperate forest ecosystems, soil acts as a major sink for atmospheric N deposition. A 15N labeling experiment in a hardwood forest on calcareous fluvisol was performed to study the processes involved. Low amounts of ammonium (15NH4+) or nitrate (15NO3–) were added to small plots. Soil samples were taken after periods ranging from 1 h to 1 yr. After 1 d, the litter layer retained approximately ...
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High Capacity Organic Fertilizer Drum Granulator Manufacturing Process
Drum granulator organic fertilizer manufacturing process is a complete organic fertilizer making line, used for organic waste recycling process to make fertilizer, suit mass fertilizer production. Rotary drum granulator is one of the key fertilizer machine equipment of the organic fertilizer and compound fertilizer industry. The products produced by this drum granulator organic fertilizer ...
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Fertilizer vs. organic matter contributions to nitrogen leaching in cropping systems of the Pampas: 15N application in field lysimeters
Abstract Nitrogen (N) export from soils to streams and groundwater under the intensifying cropping schemes of the Pampas is modest compared to intensively cultivated basins of Europe and North America; however, a slow N enrichment of water resources has been suggested. We (1) analyzed the fate of fertilizer N and (2) evaluated the contribution of fertilizer and soil organic matter (SOM) to N ...
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Organic fertilizer production machinery can improve soil organic matter content
With the promotion of consumption, energy saving and consumption reduction, and the improvement of green food demand, organic fertilizer ushers in a greater development opportunity. Then the following fertilizer production line manufacturers, will also usher in a new development and innovation. Organic fertilizer equipment can help improve soil, but we are optimistic about organic fertilizer ...
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Fertilization management of paddy fields in Piedmont (NW Italy) and its effects on the soil and water quality
The fertilization management of the rice crop in Piedmont was analyzed at a regional scale, and the agronomic and environmental sustainability of the actual fertilization strategy of rice was evaluated through the analysis of its effect on the soils and waters quality. On average, a total amount of 127 kg ha − 1 of N, 67 kg ha − 1 of P 2 O 5 and 161 kg ha − 1 of K 2 O were ...
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Sugarcane response to mill mud, fertilizer, and soybean nutrient sources on a sandy soil
Improving soil organic matter and soil fertility are important factors in the sustainability of sugarcane (Saccharum spp.) production. A 3-yr field trial was established in 2004 on a sandy Alfisol in Florida to compare the effect of organic and inorganic nutrient sources on sugarcane production. The three nutrient sources were (i) mill mud (filter cake, cachaza), (ii) local standard fertilizer, ...
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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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Dairy manure compost effects on corn silage production and soil properties
Accumulation of dairy manure compost has created a need to identify alternative uses for this plant nutrient source. This field study determined compost effects on corn (Zea mays L.) silage production, nutritive value, and soil characteristics for three growing seasons following incorporation of dairy manure compost at 0, 35, 70, and 105 Mg dry matter (DM) ha–1. Yields from subplots receiving ...
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High-Yielding corn response to applied Phosphorus, Potassium, and Sulfur in Nebraska
Nutrient management recommendations may change as yield levels and efficiency of crop production increase. Recommendations for P, K, and S were evaluated using results from 34 irrigated corn (Zea mays L.) trials conducted in diverse situations across Nebraska. The mean yield was 14.7 Mg ha–1 with adequate fertilizer applied. The median harvest index values were 0.52, 0.89, 0.15, and 0.56 for ...
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Organic fertilizer production technology - aerobic composting technology
Aerobic composting technology is an important technical means for the disposal of organic waste, especially suitable for the realization of fertilizer and substrate of agricultural solid waste. For industrialized processing of organic fertilizer, compost turning machine is usually used to ensure the smooth progress of aerobic fermentation. Aerobic composting is the absorption, oxidation, and ...
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Nitrogen contribution from red clover for corn following wheat in western Ohio
Inclusion of a winter legume cover crop into a crop rotation has been suggested as a method to provide a substantial portion of the N requirement of the following crop. While the benefits of winter cover crops such as reduced soil erosion, increased soil organic matter, and increased mulch cover have been well documented, the N contribution to the subsequent crop has shown to be variable. The ...
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Italian ryegrass management effects on nitrogen supply to a subsequent potato crop
There is increasing use of Italian ryegrass (Lolium multiflorum Lam.) as a green manure in potato (Solanum tuberosum L.) rotations; however, effects of its management on soil N supply to the subsequent potato crop are unknown. Fertilizer N management and plow-down date for a preceding Italian ryegrass crop, ‘Lemtal’, on soil N supply to a subsequent potato crop, ‘Russet Burbank’, was determined ...
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Lettuce cationic nutrition and yield, and soil chemical characteristics as affected by vanadium application to leaves or soils
Lettuce plants (Lactuca sativa, L., cv. "trocadero") were grown in pots filled with an Alfisol Udalf or an Andisol Udand soil, under greenhouse conditions. Treatments consisted of adding vanadium to soils (0, 100, 250, 500 and 10001mg1kg1 or as foliar sprays (0, 10, 25, 50, and 1001mg111. Soil chemical characteristics, the cationic nutrition of lettuce and their yields were assessed. No ...
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Effect of implementing organic farming on chemical and biochemical properties of an irrigated loam soil
Conventional agriculture can lead to reduced soil organic matter and depletion in soil fertility. For that reason, Food and Agriculture Organization of the United Nations (FAO) recommends organic matter incorporation to soils to increase their agronomic quality. This work studies the effect of the transition to organic farming on chemical and biochemical properties of a loam soil (Xerofluvent), ...
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Long-term study of properties of a xerofluvent of the guadalquivir river valley under organic fertilization
The long-term effect of inorganic and organic fertilization in a vegetable crop rotation on soil chemical and biochemical properties was investigated in a trial in southern Spain. Two crops were grown in succession, potato (Solanum tuberosum L.) and a mixed-cropped strawberry–onion (Fragaria vesca L.–Allium cepa L.). Total organic carbon (TOC), Kjeldahl-N, bicarbonate-extractable P (Olsen-P), ...
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Seeding rate and planting arrangement effects on growth and weed suppression of a legume-oat cover crop for organic vegetable systems
Winter cover crops can add soil organic matter, improve nutrient cycling, and suppress weeds in organic vegetable systems. A 2-yr study was conducted on organic farms in Salinas and Hollister, CA, to evaluate the effect of seeding rate (SR) and planting arrangement on cover crop density, ground cover, and cover crop and weed dry matter (DM) with a mixed cover crop. The mix contained legumes (35% ...
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Cover crop and liquid manure effects on soil quality indicators in a corn silage system
Due to a lack of surface residue and organic matter inputs, continuous corn (Zea mays L.) silage production is one of the most demanding cropping systems imposed on our soil resources. In this study, our objective was to determine if using cover/companion crops and/or applying low-solids liquid dairy manure could improve physical, chemical, and biological soil properties and overall soil quality. ...
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