CORN ROOT DISTRIBUTION IN RELATION TO LONG-TERM ROTATIONS ON A POORLY DRAINED CLAY LOAM SOIL

1987 ◽  
Vol 67 (1) ◽  
pp. 231-234 ◽  
Author(s):  
J. A. STONE ◽  
J. A. McKEAGUE ◽  
R. PROTZ
Keyword(s):  
Zea Mays ◽  
Root Distribution ◽  
Zea Mays L ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Corn Root ◽  
Loam Soil

Corn (Zea mays L.) root distribution was observed in monoculture and corn-legume rotation plots established in 1956 on Brookston clay loam soil. The results support the hypothesis that a more extensive corn root distribution is promoted by a corn-legume rotation. There was no indication of a root-restricting zone in either rotation.Key words: Monoculture corn, alfalfa rotation

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.

Long-term changes in Mehlich-3 extractable P and K in a sandy clay loam soil under continuous corn (Zea mays L.)

1995 ◽  
Vol 75 (3) ◽  
pp. 361-367 ◽  
Author(s):  
T. Q. Zhang ◽  
A. F. MacKenzie ◽  
B. C. Liang
Keyword(s):  
Zea Mays L ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Inorganic P ◽  
Sandy Clay Loam ◽  
Continuous Corn ◽  
Extractable P ◽  
Loam Soil ◽  
P Removal

Rates of change of soil nutrient levels during crop production can be used to evaluate the long-term economic value and sustainability of fertilizer practices. Objectives were to quantify changes in Mehlich-3 extractable P and K due to additions of inorganic and manure P and K in corn (Zea mays L.) production. Surface (0–20 cm) and subsoil (20–40 cm) samples were collected after harvest from 1984 to 1993 on a Chicot sandy clay loam soil (Grey Brown Luvisol) fertilized with two rates of inorganic P and K and with dairy manure. Manure P at 60 kg P ha−1 plus inorganic fertilizer P at 132 kg ha−1 yr−1 increased extractable P 1.0 kg for every 4.2 kg added P if only topsoil was considered, for every 3.2 kg added P if corn grain P removal was deducted, and for every 2.8 kg added P if subsoil increases were included but corn P uptake excluded, and 2.1 kg added P with subsoil P included and corn P removal deducted. Without manure, 132 kg P ha−1 yr−1 increased Mehlich-3 extractable P by 1.0 kg for every 8.1 kg P added, or 5.3 kg P added if corn P removal was deducted from added fertilizer P. At the low rate of 44 kg P ha−1 with manure P, Mehlich-3 levels increased by 1.0 kg P for every 5.2 kg added fertilizer P. Extractable P remained constant when inorganic fertilizer P was added without manure, probably because crop removals equalled fertilizer additions. Mehlich-3 extractable K increased in both top soil and subsoil at rates of 141 and 332 kg ha−1 yr−1 inorganic K except for the 141 K rate in the final four years when no manure was applied. When both soil depths were included and summed over all years, values of added K to increase extractable K by 1.0 kg ranged from 4.2 to 5.5 kg, regardless of source or rate of added K. To increase soil test P, manure combined with high P rates was more effective per unit added P than low P rates or added P without manure. Either form or rate of added K was equivalent in increasing extractable K. Key words: Long-term fertilization, continuous corn, organic manure P, inorganic P, Mehlich-3 extractable P, Mehlich-3 extractable K

Effect of water salinity and irrigation regime on maize (Zea mays L.) cultivated on clay loam soil and irrigated by furrow in Southern Italy

2019 ◽  
Vol 222 ◽  
pp. 118-124 ◽  
Author(s):  
Giovanna Cucci ◽  
Giovanni Lacolla ◽  
Francesca Boari ◽  
Mario Alberto Mastro ◽  
Vito Cantore
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Southern Italy ◽  
Water Salinity ◽  
Clay Loam ◽  
Irrigation Regime ◽  
Clay Loam Soil ◽  
Effect Of Water ◽  
Loam Soil

Effect of Long-term Cropping Systems on Soil Hydrophobicity of a Clay Loam Soil Under Dryland Conditions in Southern Alberta

2022 ◽  
Author(s):  
Jim J. Miller ◽  
Mallory Owen ◽  
Ben Ellert ◽  
Xueming Yang ◽  
Craig F. Drury ◽  
...  
Keyword(s):  
Continuous Cropping ◽  
Strong Positive Correlation ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Manure Application ◽  
Organic Carbon Concentration ◽  
Southern Alberta ◽  
Loam Soil ◽  
Soil Hydrophobicity

The objective was to quantify the effect of crop rotations, crop type, life cycle, nitrogen fertilizer, manure application, and fallow on soil hydrophobicity (SH). The SH was measured for a long-term (16 yr) dryland field experiment on a Dark Brown clay loam soil in southern Alberta, Canada. Mean SH was significantly (P ≤ 0.05) greater in rotations with grass, perennial crops, manure application, and continuous cropping; whereas cereal-legume rotations and N fertilizer effects were undetectable. A strong, positive correlation occurred between SH and soil organic carbon concentration (r=0.73). Soil water repellency should be measured on these plots using water-based methods.

CO2 Emissions and Maize Biomass Production Using Digestate Liquid Fraction in Two Soil Texture Types

2017 ◽  
Vol 60 (4) ◽  
pp. 1325-1336 ◽  
Author(s):  
Carmelo Maucieri ◽  
Maurizio Borin
Keyword(s):  
Biomass Production ◽  
Soil Texture ◽  
Sandy Loam ◽  
Liquid Fraction ◽  
Emission Peak ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Primary Tillage ◽  
Loam Soil

Abstract. The aim of this work was to evaluate the effects of soil texture and primary tillage type on soil CO2 emission and maize biomass production after digestate liquid fraction (DLF) spreading. The study was conducted in 2014 in two open fields at Terrasa Padovana (farm 1) and Bovolenta (farm 2) in the Veneto Region of Italy. Soil CO2 emission after digestate spreading was evaluated by comparing the effect of soil texture (sandy loam vs. clay loam) at farm 1 and the effect of long-term primary tillage management (>10 years) (ripping vs. plowing) in clay loam soil at farm 2. Unamended soil was considered the control at both farms. DLF was supplied before maize ( L.) sowing at a dose equal to 170 kg total nitrogen ha-1 using a splash-plate technique. DLF spreading determined a CO2 emission peak 1 h after spreading at both farms, with median emission values of 8.93 and 4.35 g m-2 h-1, respectively, from the sandy loam and clay loam soils at farm 1. At farm 2, primary tillage type did not exert a significant effect on CO2 emission peak, with a median value of 5.85 g m-2 h-1. About three days after DLF distribution, soil CO2 fluxes were less than 1 g m-2 h-1. The first soil harrowing and the first rainfall event after spreading determined significantly higher CO2 emissions from amended plots than from unamended plots for a few hours. At farm 1, soil CO2 emission during the maize growing season was significantly higher in the amended plots (+1.7 times) than in the unamended plots, which showed a median emission value of 0.29 g m-2 h-1; soil texture and tillage exerted no significant influence. Maize yield at dough stage was not significantly influenced by DLF at farm 1, with 22.7 ±1.6 Mg ha-1 and 18.7 ±2.8 Mg ha-1 in the clay loam and sandy loam soils, respectively. At farm 2, the distribution of DLF increased maize biomass production by +17% with respect to the unamended treatment that produced 18.0 ±2.4 Mg ha-1. Although the results reported in this article concern data from only one year, and further long-term experiments are needed to confirm our findings, they indicate that CO2 emissions after digestate distribution are lower in a clay loam soil than in a sandy loam soil and are not affected by primary tillage type. Keywords: Clay loam soil, Digestate splash-plate spreading, Plowing, Ripping, Sandy loam soil.

Long-term fertilization impacts on corn yields and soil organic matter on a clay-loam soil in Northeast China

2007 ◽  
Vol 170 (2) ◽  
pp. 219-223 ◽  
Author(s):  
Ping Zhu ◽  
Jun Ren ◽  
Lichun Wang ◽  
Xiaoping Zhang ◽  
Xueming Yang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Northeast China ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Loam Soil

Effects of long-term and recently imposed tillage on the concentration and composition of amino sugars in a clay loam soil in Ontario, Canada

2014 ◽  
Vol 135 ◽  
pp. 9-17 ◽  
Author(s):  
Bin Zhang ◽  
Craig F. Drury ◽  
Xueming Yang ◽  
W. Daniel Reynolds ◽  
Xudong Zhang
Keyword(s):  
Amino Sugars ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Loam Soil

scholarly journals Earthworm population dynamics as a consequence of long-term and recently imposed tillage in a clay loam soil

2017 ◽  
Author(s):  
Catherine Anne Fox ◽  
Joseph J. Miller ◽  
Monika Joschko ◽  
Craig F. Drury ◽  
W. Reynolds
Keyword(s):  
Population Dynamics ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Earthworm Population ◽  
Loam Soil
Sign in / Sign up

Export Citation Format

Share Document