The effects of subsoiling and deep incorporation of P and K fertilizers on the yield and nutrient uptake of barley, potatoes, wheat and sugar beet grown in rotation

1979 ◽  
Vol 92 (3) ◽  
pp. 695-702 ◽  
Author(s):  
J. McEwen ◽  
A. E. Johnston
Keyword(s):  
Sugar Beet ◽  
Nutrient Uptake ◽  
Sandy Loam ◽  
Dolomitic Limestone ◽  
Exchangeable K ◽  
K Fertilizer ◽  
Loam Soil ◽  
Small Plot ◽  
The Mean ◽  
Plot Experiment

SUMMARYA small-plot experiment on sandy loam soil at Woburn tested the effects of subsoiling by hand and of incorporating a large dressing of P and K fertilizer into the subsoil.Ths treatments were applied once in 1973 and their effects were assessed from 1974 to 1977 on the yields of, and N, P, K uptakes by, barley, potatoes, wheat and sugar beet grown in rotation. All crops were present each year and all plots received annual seedbed dressings of N, P and K appropriate to the crop. Dolomitic limestone was applied once in the rotation. The effects of the treatments on P soluble in 0·5 M-NaHCO3 and exchangeable K in surface and subsoils were measured.Subsoiling alone increased the 4-year mean yield of wheat by 21%, of barley by 24% and of sugar from sugar beet by 11%. Mean yield of potatoes was unaffected.Incorporating P and K into the subsoil increased the mean yield of potatoes by 16% and further increased mean yield, in addition to the effect of subsoiling, of barley by 20% and of sugar by 4%. Mean yield of wheat was not further affected.

INFLUENCE OF FORM AND MODE OF NITROGEN FERTILIZER APPLICATION ON THE AVAILABILITY OF SOIL AND FERTILIZER POTASSIUM

1966 ◽  
Vol 46 (1) ◽  
pp. 23-28 ◽  
Author(s):  
D. K. Acquaye ◽  
A. J. MacLean
Keyword(s):  
Nitrogen Fertilizer ◽  
Sandy Loam ◽  
Fertilizer Application ◽  
Inhibitory Effect ◽  
Sandy Loam Soil ◽  
Chemical Extraction ◽  
K Uptake ◽  
Exchangeable K ◽  
K Fertilizer ◽  
Loam Soil

Ammonium applied alone or after addition of K depressed the uptake of K by oats grown in a sandy loam soil in the greenhouse. When NH4 was added first and K later at seeding, however, NH4 increased K-uptake.In the absence of K fertilizer, NH4 reduced the release of non-exchangeable K to the plants. When added prior to or at the same time as K at seeding, NH4 reduced K-fixation. This inhibitory effect of NH4 on fixation of added K was reflected in higher amounts of K in solution as shown by lower [Formula: see text] ratios. These results of chemical extraction of the soil indicated that the effects of NH4 on K-uptake by the oat crop arose from reactions in the soil.

Variety × Nutrient management interaction in greengram for important yield attributes under rainfed red lateritic inceptisol

2017 ◽  
Author(s):  
Ashok Mishra ◽  
B. S. Rath ◽  
S. K. Mukhi ◽  
S. S. Mishra ◽  
S. K. Mohanty ◽  
...  
Keyword(s):  
Seed Yield ◽  
Management Practices ◽  
Nutrient Management ◽  
Sandy Loam ◽  
Yield Attributes ◽  
Nutrient Treatment ◽  
Rainfed Upland ◽  
Loam Soil ◽  
Use Efficiency ◽  
The Mean

The effect of five nutrient management practices on the yield and yield attributes, nutrient uptake and rain water use efficiency in four greengram varieties (Dhauli, Pusa-9531, OBGG-52 and Nayagarh Local) in rainfed upland inceptisol with sandy- loam soil was studied in factorial RBD with three replications during Kharif 2009 to 2012. Significant variety × nutrient interaction was observed with respect to seed yield, nodulation and other yield attributing characters. Based on the mean data over four years (2009-2012), highest seed yield of 5.84 q ha-1 was observed in Pusa 9531 with lime+50% organic+ 50% inorganic treatment followed by Dhauli (5.53 q ha-1) with the same nutrient treatment. Highest RWUE was found in Lime + 50% organic + 50% inorganic treatment in all the varieties followed by 100% organic treatment in Dhauli, Pusa-9531 and OBGG-52 but in 50% organic + 50% inorganic treatment in case of Nayagarh Local. The uptake of N, P and K was also observed to be the highest in Lime + 50% organic + 50% inorganic treatment in all the varieties.

Sicklepod (Senna obtusifolia) germination and emergence as affected by environmental factors and seeding depth

Weed Science ◽  
2006 ◽  
Vol 54 (5) ◽  
pp. 903-909 ◽  
Author(s):  
Jason K. Norsworthy ◽  
Marcos J. Oliveira
Keyword(s):  
Osmotic Potential ◽  
Sandy Loam ◽  
Red Light ◽  
Sandy Loam Soil ◽  
Hypocotyl Length ◽  
Solution Ph ◽  
Temperature Solution ◽  
Loam Soil ◽  
The Mean ◽  
Effect Of Light

Laboratory and greenhouse experiments were conducted to determine the effect of light, temperature, solution pH, solution osmotic potential, and oxygen concentration on sicklepod germination and radicle plus hypocotyl elongation and seeding depth on emergence. Scarified, nondormant sicklepod seeds were used for these experiments. Sicklepod germination was not influenced by red or far-red light nor was light required for germination, which averaged 81% over all light treatments. Sicklepod germinated over a range of constant temperatures from 15 to 50 C, with optimum germination between 15 and 30 C. Germination was optimal near pH 6 for temperatures of 15 and 30 C. Germination and radicle plus hypocotyl length decreased with decreasing solution osmotic potential, and no germination occurred at a solution osmotic potential of −0.75 MPa at 15 C during 7 d incubation. Germination was greater at 20% oxygen than at 2% oxygen. The mean emergence depth for sicklepod was 3.3 and 4.6 cm in a highly disturbed sand and sandy loam soil, respectively. Sicklepod emerged from a 10-cm depth in the sandy loam soil, but no emergence occurred in the sand soil at this depth.

scholarly journals Residue Kinetics of Ethofumesate in Texturally Diverse Soils of Sugar Beet Crop under Field Conditions

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Shishir Tandon ◽  
Suman Lata Pal
Keyword(s):  
Sugar Beet ◽  
Sandy Loam ◽  
Animal Health ◽  
Field Conditions ◽  
Silty Clay ◽  
First Order Kinetics ◽  
Quantitation Limit ◽  
Long Duration ◽  
Loam Soil ◽  
Sugar Beet Crop

Indiscriminate use of pesticides and growing awareness of environmental and health problems had led to monitoring their residues in soil and crops. Ethofumesate is one of the widely used herbicides for controlling weeds in sugar beet. Dissipation kinetics and terminal residues of ethofumesate were investigated in two diverse soils under subtropical field conditions. Ethofumesate dissipated slowly after application and follows biphasic first-order kinetics in soils. The average half-life for initial and later phases in sandy loam soil, respectively, was 14.54 and 20.42 and 51.83 and 65.21 days, while for silty clay loam, it was 10.09 and 13.00 and 71.42 and 73.10 days, respectively. Recoveries in soil, leaves, and beetroot ranged from 78.15 to 88.05, 77.01 to 88.58, and 76.25 to 84.50%, respectively. The quantitation limit for soil, roots, and leaves was 0.002 μg g−1. At harvest, no residues were detected in soils, leaves, and sugar beetroots. Residues were below the maximum residue limits in sugar beetroots and leaves as set by EU (0.2 ppm). Ethofumesate is safe from weed control and environmental aspects as it does not persist for a long duration in soils and does not appear to pose any adverse effect on human/animal health under subtropical field conditions.

scholarly journals Preliminary Assessment on Riverine Soil Properties of Sg. Lebir, Kelantan, Peninsular Malaysia

2019 ◽  
pp. 50-52
Keyword(s):  
Soil Properties ◽  
Bulk Density ◽  
Soil Texture ◽  
Sandy Loam ◽  
Soil Disturbance ◽  
Peninsular Malaysia ◽  
Preliminary Assessment ◽  
Unconsolidated Material ◽  
Loam Soil ◽  
The Mean

Soil is the unconsolidated material in which plants are rooted. Soil texture is determined by the amount of sand, silt and clay in the soil. Understanding soil properties can help to better management and minimize soil disturbance. These soils were collected for soil properties and bulk density along the 55.2km of Sg. Lebir. Soil on Earth commonly contains of various particles such as sand, silt and clay. These particles commonly classes by refer to soil textural triangle. 40g of air-dried sample diluted into 1000ml of deionised water were left until the percentage of sand, silt and clay observed then calculated as percentage. As calculated, the mean percentage of sand contained is 66%, clay 17% and silt 17%. Besides that, it was concluded that most of the soils texture along 55.2km of Sg. Lebir had a sandy loam soil with pH slightly acidic (6.08) with densities the mean is 0.24 gcm-3.

The growth of sugar beet under different water regimes

1958 ◽  
Vol 51 (2) ◽  
pp. 133-136 ◽  
Author(s):  
P. C. Owen
Keyword(s):  
Water Stress ◽  
Sugar Beet ◽  
Crop Yields ◽  
Maximum Yield ◽  
Soil Water Stress ◽  
Small Plot ◽  
Large Application ◽  
Net Assimilation ◽  
Large Crop ◽  
Plot Experiment

In a small plot experiment in which the crop was protected from rain, the application of large amounts of water to keep the soil water stress to a minimum gave very large crop yields. One-fifth of this amount of water gave 80% of the maximum yield. Small, frequent applications of water appeared to give higher yields than the same amount of water in one large application. Yield differences were due to differences in leaf areas rather than to differences in net assimilation rates.

scholarly journals Assessing of soil aggregate stability: the sand-correction and its relevance

2009 ◽  
pp. 29-47
Author(s):  
Andrea Huisz
Keyword(s):  
Wheat Straw ◽  
Soil Structure ◽  
Sandy Loam ◽  
Aggregate Stability ◽  
Index Formula ◽  
Soil Aggregate Stability ◽  
Mean Weight Diameter ◽  
Loam Soil ◽  
The Mean ◽  
Organic Matter Addition

Soil structure and changes in its quality caused by Maize stem (1), Wheat straw (2) and Maize stem & wheat straw (3) addition were assessed by three aggregate-stability indices. We observed that the NSI index formula proposed by Six et al. (2000) was nonsensitive to the changes in soil structure caused by the investigated organic matter addition. Furthermore it overestimates the aggregate-stability of the investigated silty sandy loam soil. Therefore we proposed a new modified NSI formula which is sensitive to the questionable treatments and that resulted in a morerealistic NSI data. The most sensitive index to differences of the investigated treatments were the Mean weight diameter (MWD) proposed by van Bavel (1953, in Kemper és Rosneau, 1986).

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