Influence of Tillage Systems on Wheat Yields and Economics in Clay Loam Soil under the Mediterranean Dryland Conditions

2004 ◽  
Vol 3 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Sakine Ozpinar .
Keyword(s):  
Clay Loam ◽  
Clay Loam Soil ◽  
Tillage Systems ◽  
Loam Soil ◽  
The Mediterranean

scholarly journals Effect of Tillage Systems on Physical Properties of a Clay Loam Soil under Oats

Agriculture ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 62 ◽  
Author(s):  
Karen Ordoñez-Morales ◽  
Martin Cadena-Zapata ◽  
Alejandro Zermeño-González ◽  
Santos Campos-Magaña
Keyword(s):  
Soil Properties ◽  
Environmental Conditions ◽  
Conservation Tillage ◽  
Pore Space ◽  
Conventional Tillage ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Tillage Systems ◽  
Loam Soil

In many regions, conservation tillage has been shown to contribute to preserving soil properties. However, in order to promote this practice in new areas, it is necessary to generate information about its results in local environmental conditions. Our objective was to study the effect of No Tillage (NT), Vertical Tillage (VT) and Conventional Tillage (CT) on physical soil properties of a clay loam soil and on yields (Avena sativa L.), in a semiarid area of Mexico. From 2013 to 2016 an experiment was conducted in random blocks, with the three tillage systems as treatments. Four variables were measured; bulk density (Bd), pore space (P), hydraulic conductivity (Ks) and crop yield. Our results did show scarce differences between the tillage systems. Values ranged between 1.21 g cm−3 to 1.39 g cm−3 for Bd, 45% to 55% for P, and 4.29 mm h−1 to 13.61 mm h−1 for Ks. Although differences were not significant among treatments, Bd decreased 6.7% for CT, 5.6% for NT and 0.7% for VT. P increased 6% for CT, 5% for NT and 0.5% for VT. Ks for CT decreased 6% more than for NT and VT. Average yield was 13% less in NT compared to CT and VT. A long-term investigation is needed in order to determine the effects of tillage methods, in our particular environmental conditions.

Influence of urea fertilization and urease inhibitor on the size and activity of the soil microbial biomass under conventional and zero tillage at two sites

1999 ◽  
Vol 79 (2) ◽  
pp. 255-263 ◽  
Author(s):  
M. R. Banerjee ◽  
D. L. Burton ◽  
C. A. Grant
Keyword(s):  
Soil Type ◽  
Soil Microbial Biomass ◽  
Sandy Loam ◽  
Urease Inhibitor ◽  
Zero Tillage ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Tillage Systems ◽  
Soil Microbial ◽  
Loam Soil

Fertilizers are frequently used in agriculture to enhance crop yield and quality. Increasingly, microbial and enzyme inhibitors are being used to enhance the efficiency of fertilizer nitrogen use. The assumption being made is that the impact of these compounds is short-term or localized and thus does not adversely impact soil quality. This study investigates the implications of urea fertilizer with and without urease inhibitor [N-(n-butyl) thiophosphoric triamide, NBPT], conventional and zero tillage systems, and soil types on the soil biological characteristics including N mineralization. Microplot studies were conducted in clay loam and fine sandy loam soils in Manitoba. Soil type had a significant effect on the soil organic C but tillage did not have any significant effect. Soil microbial biomass C content ranged widely (131–1215 µg g−1 soil). The clay loam soil generally tended to contain higher biomass C than the sandy loam soil. The potential soil mineral N production (N0) was higher in clay loam soil (92.6 µg g−1 soil) than sandy loam soil (40.2 µg g−1 soil). Tillage systems, urea and urease inhibitor application had no significant impact on the soil biomass C, N0, arylsulfatase or acid and alkaline phosphatase content. At these sites considerable fluctuations occurred in the microbial and biochemical properties due to the variation of soil type. In general, these fluctuations were mainly related to soil organic matter and soil moisture content. Tillage system, urea with and without NBPT application did not contribute any notable impact on the soil biological properties reported in this study. Key words: Soil biological quality, soil type, urease inhibitor, conventional tillage, zero tillage

Tillage system influences hydrophobicity but not water repellency of a clay loam soil in southwestern Ontario

2019 ◽  
Vol 99 (4) ◽  
pp. 575-578 ◽  
Author(s):  
J.J. Miller ◽  
M.L. Owen ◽  
X.M. Yang ◽  
C.F. Drury ◽  
W.D. Reynolds ◽  
...  
Keyword(s):  
Water Repellency ◽  
No Tillage ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Soil Water Repellency ◽  
Tillage Systems ◽  
Tillage System ◽  
Loam Soil ◽  
Soil Hydrophobicity ◽  
Moldboard Plow

A 21 yr field study comparing zone tillage (ZT), no-tillage (NT), and moldboard plow tillage (MP) was used to elucidate tillage effects on soil hydrophobicity (SH) and soil water repellency index (RI) in a cool, humid clay loam soil in southwestern Ontario. The SH was 38% (P ≤ 0.05) greater for ZT and NT than MP, and it was similar between crop row (0.34) and crop inter-row (0.37) for ZT. The RI values were not different among tillage systems, or between the crop row versus crop inter-row positions under the three tillage systems.

Effect The Treatments of Biofertilizer and Mineral Fertilizer on Content of N P K of Soil Cultivated With Crop Corn (Zea Mays L).

2019 ◽  
Vol 9 (2) ◽  
pp. 247-256
Author(s):  
Mohammed Aajmi Salman ◽  
Jawad A. Kamal Al-Shibani
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Mineral Fertilizer ◽  
Silty Clay ◽  
Clay Loam ◽  
Potassium Fertilizer ◽  
Clay Loam Soil ◽  
Silty Clay Loam ◽  
Fall Season ◽  
Loam Soil

Beneficial microorganisms play a key role in the availability of ions minerals in the soil and use Randomized Complete Block Desing ( R.C.B.D ). The objective of this paper to the study effect of the of biofertilizer and miniral treatments on availability of NPK for crop corn zea mays L.Two types of biofertilizer are Bacterial Bacillus subtilis and Fungal Trichoderma harianum. Three levels of potassium fertilizer are (2.9533, 0.4000 and 2.9533). A field experiment in fall season of 2018 Has been conducted in silty clay loam soil. The experimental Results indicated that Bacillus and Trichoderma inoculation separately or together Have made a significant effect to increase in the availability of N P K in the soil compare to other treatments. The grain yield is where (2.9533, 0.4000 and 2.9533) of bacterial and fungal bio-fertilizer and potassium fertilizers respectively as compared to the control.

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