The effect on grain sorghum of depth of placement of initial phosphate fertilizer on new land at Katherine, N.T

In an experiment on Tippera clay loam soil at Katherine, N.T., between 1962 and 1965, a comparison was made of the effect of depth of placement of initial applications of superphosphate and Christmas Island rock phosphate dust on the yield of grain sorghum for the first three years of cropping on new land. Placement of 4 cwt an acre superphosphate or 12 cwt an acre rock phosphate in a layer at 8 inches depth gave lower grain, dry matter, and phosphorus yields than mixing the same amount and type of fertilizer in the 0-4 inch or 0-8 inch layers. There were no significant differences in grain, dry matter, or phosphorus yield between mixing in the 0-4 or 0-8 inch layers. Additional annual applications of 4 cwt an acre superphosphate banded with the seed increased grain and dry matter yield when the initial phosphate fertilizer was placed in a layer at 8 inches, but not when it was mixed in the 0-4 or 0-8 inch layers.

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A lysimeter study of the water balance of border-check irrigated perennial pasture

Australian Journal of Experimental Agriculture ◽

10.1071/ea03049 ◽

2004 ◽

Vol 44 (2) ◽

pp. 151 ◽

Cited By ~ 10

Author(s):

M. Bethune ◽

Q. J. Wang

Keyword(s):

Water Balance ◽

Water Use ◽

Dry Matter ◽

Dry Matter Production ◽

Clay Loam ◽

Clay Loam Soil ◽

Deep Drainage ◽

Pasture Production ◽

Matter Production ◽

Loam Soil

The dairy industry is a major user of water in northern Victoria and southern New South Wales. Water is typically applied to pasture using the border-check irrigation system. The border-check system is largely gravity driven and thus energy efficient. However, deep drainage can potentially be high because the system allows only limited control over the depth of water applied in each irrigation event. For this reason, heavy soils are regarded as the most suitable for border-check irrigation. This study quantified net deep drainage (deep drainage less capillary rise) under border-check irrigated pasture on a Goulburn clay loam soil. Additionally, the study investigated the extent to which irrigation frequency and watertable conditions influence water use, dry matter production and deep drainage. The water balance and dry matter production were monitored over 2.5 years in a lysimeter facility in northern Victoria. The Goulburn clay loam is representative of the heavier textured soils used for border-check irrigation of pasture in northern Victoria. The average measured net deep drainage was 4 mm/year. This indicates that relatively small levels of net deep drainage can be achieved under well-managed border-check irrigation on a Goulburn clay loam soil. Net deep drainage losses were greatest following winter, when rainfall exceeded pasture water use for an extended period. Increasing the interval between irrigation events resulted in reduced plant water use, infiltration of irrigation water, rainfall runoff and pasture production. However, increasing the interval did not impact on net deep drainage or water use efficiency. Depth of watertable had a relatively minor impact on the water balance.

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Response of subterranean clover to rock phosphates as affected by particle size and depth of mixing in the soil

Australian Journal of Experimental Agriculture ◽

10.1071/ea9740649 ◽

1974 ◽

Vol 14 (70) ◽

pp. 649 ◽

Cited By ~ 14

Author(s):

AM Alston ◽

KW Chin

Keyword(s):

Particle Size ◽

Dry Matter ◽

Rock Phosphate ◽

Phosphorus Uptake ◽

Subterranean Clover ◽

Phosphorus Concentration ◽

Dry Matter Yield ◽

Rock Phosphates ◽

Monocalcium Phosphate ◽

Christmas Island

Samples of Christmas Island and Florida rock phosphates with different particle size ranges were applied to a phosphorus-deficient acid sandy soil. The rock phosphates were compared with monocalcium phosphate at various levels of addition of phosphorus. The fertilizers were mixed uniformly with either the top 1, 5, or 10 cm of the soil. Dry matter yield and phosphorus uptake in the tops of subterranean clover (Trifolium subterraneum) and the distribution (by weight) of the roots in the soil were determined. Monocalcium phosphate produced higher dry matter yields (tops and roots) than rock phosphates, even when the latter were applied in amounts containing four times the amount of phosphorus added as monocalcium phosphate. The concentration and uptake of phosphorus in the tops was also higher when monocalcium phosphate was applied, although the difference in concentration decreased as the plants matured. Dry matter yield and phosphorus concentration in the clover tops were increased by increasing the fineness of grinding of rock phosphate and by increasing the depth of mixing with the soil. Increasing the depth of mixing also produced a greater weight and more even distribution of roots. The yield of tops and roots was unaffected by the depth to which monocalcium phosphate was mixed, although shallow placement concentrated the distribution of the roots near the soil surface. Florida rock phosphate was a better source of phosphorus for subterranean clover than Christmas Island rock when the samples were coarsely ground, but both rocks were equally effective when ground to give 70 per cent < 100 mesh B.S.S.

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The effect of subsoiling and different levels of manuring on yields of cereals, lucerne and sugar beet

The Journal of Agricultural Science ◽

10.1017/s0021859600018578 ◽

1967 ◽

Vol 69 (2) ◽

pp. 183-187 ◽

Cited By ~ 10

Author(s):

R. Hull ◽

D. J. Webb

Keyword(s):

Sugar Beet ◽

Dry Matter ◽

First Year ◽

Clay Loam ◽

Clay Loam Soil ◽

Experimental Station ◽

Loam Soil ◽

Different Levels

The effect of subsoiling an old arable clay-loam soil at Broom's Barn Experimental Station, Suffolk, was tested with a sequence of wheat, barley and sugar-beet crops, a lucerne ley and a sugar-beet test crop in the fourth year.Subsoiling increased the yield of each crop each year, averages over 3 years were: wheat, 0·6 cwt/acre of grain; barley 0·4 cwt/acre; lucerne 0·6 cwt/acre of dry matter. Average increases of sugar beet over 4 years were 0·7 tons/acre of roots or 2·1 cwt/acre of sugar; the increase was greatest (2·9 cwt/acre of sugar) in the first year.

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Cation-anion relationships in crop nutrition

The Journal of Agricultural Science ◽

10.1017/s0021859600064807 ◽

1965 ◽

Vol 64 (2) ◽

pp. 229-233 ◽

Cited By ~ 3

Author(s):

R. K. Cunningham ◽

A. Karim

Keyword(s):

Nutrient Solution ◽

Dry Matter ◽

Clay Loam ◽

Clay Loam Soil ◽

Rye Grass ◽

Crop Nutrition ◽

Loam Soil

Italian rye-grass was grown in the greenhouse in clay loam soil in winter 1962 with several rates of a nutrient solution containing NO3-N and P, K, Ca and Mg to see whether the grass had maximum values for sums of the cations and anions (σ cations, σ anions). Two other experiments were done in summer 1962 with a similar nutrient solution containing either NO3-N alone or NO3-N plus NH4-N.At the same level of added nutrients summer yields of grass were about twice those in winter and there was little difference when nutrient mixtures with NO3-N+NH4-N or with NO3-N alone were used. The sum of the cations (m-equiv./lOO g. dry matter) in the grass was positively correlated

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Effects of sulphitation press mud and nitrogen fertilizer on biomass, nitrogen economy and plant composition in sugarcane and on soil chemical properties

The Journal of Agricultural Science ◽

10.1017/s0021859600072646 ◽

1990 ◽

Vol 114 (3) ◽

pp. 259-263 ◽

Cited By ~ 15

Author(s):

N. P. S. Yaduvanshi ◽

D. V. Yadav

Keyword(s):

Dry Matter ◽

Growth Stage ◽

Chemical Properties ◽

Clay Loam ◽

Plant Composition ◽

Clay Loam Soil ◽

Press Mud ◽

Combined Application ◽

Matter Production ◽

Loam Soil

SUMMARYOn a clay loam soil, the cultivar Col 148, planted in spring 1987 at 57560 three-budded setts/ha received 0, 75, 100 and 150 kg N/ha and 0, 10, 20 and 30 t/ha fresh sulphitation press mud either separately or in combined applications, at 80% moisture. Separate applications of up to 150 kg N/ha and up to 30 t press mud/ha increased the cane biomass by 24·6% and 13·2%, respectively, whereas combined application increased it up to 38·1% more than in the control. A N concentration of 1·95–2·12% in the blades of leaves 3·6 from the top of the plant from tillering to the grand growth stage was necessary for maximum dry matter production. Sulphitation press mud enhanced uptake and availability of N and P to the crop and reduced soil pH. Application of 10 t press mud/ha saved 75 kg/ha of fertilizer N.

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

Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN 2077-5822 E-ISSN 2617-1479) ◽

10.33794/qjas.vol9.iss2.89 ◽

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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