Yield responses by sultanas to applications of zinc and superphosphate

1964 ◽  
Vol 4 (13) ◽  
pp. 169 ◽  
Author(s):  
DMcE Alexander ◽  
RC Woodham
Keyword(s):  
Zinc Deficiency ◽  
Seasonal Variations ◽  
Alkaline Soils ◽  
Zinc Treatment ◽  
Deficiency Symptoms ◽  
Dried Fruit ◽  
Dormant Season ◽  
Yield Responses ◽  
Zinc Application

Zinc foliage sprays increased the yield of dried fruit of sultana vines on two light-textured alkaline soils in the Mildura area. Neither vineyard exhibited zinc deficiency symptoms. Yield increases with zinc application were mainly due to better setting. The increase occurred in the season of application. Depressed yields with superphosphate were obtained in three years out of seven, after 19 years of heavy annual dressings on one of these sites. The application of zinc to canes during the dormant season offset this decrease but had no effect on vines not receiving superphosphate. Seasonal variations in the responses to zinc treatment are discussed.

Effects of timing of foliar zinc fertilizer on yield components of soyabeans

1982 ◽  
Vol 22 (116) ◽  
pp. 226 ◽  
Author(s):  
LW Bank
Keyword(s):  
Zinc Deficiency ◽  
Yield Components ◽  
Sulfate Heptahydrate ◽  
Deficiency Symptoms ◽  
South Wales ◽  
Weight Yield ◽  
Zinc Fertilizer ◽  
Zinc Concentrations ◽  
Yield Responses ◽  
Zinc Application

The effects of foliar applications of zinc sulfate heptahydrate on the yield components of six soybean varieties were studied at Trangie, New South Wales, on a zincdeficient soil. Zinc was applied at 0.9 kg/ha four, six and both four and six weeks after sowing and the plants were compared with unsprayed plots. Visual zinc deficiency symptoms appeared in unsprayed plots of Forrest, Dare, Dodds and Bragg from five weeks after sowing and zinc application increased yields and foliar zinc concentrations in all these varieties. Lee and Ruse did not show zinc deficiency symptoms and did not respond to the zinc treatments. The single zinc application six weeks after sowing was slightly more effective than that at four weeks, and the double spray gave additional benefit to Forrest, Dare and Dodds. Forrest was the most responsive variety with zinc applications increasing yields from 920 to 3220 kg/ha through increases in pods/m2, seeds/pod and seed weight. Yield of Dodds increased from 1835 to 2699 kg/ha in response to zinc by the production of more podslm2 and more seeds/pod, while yield responses of Dare (1783 to 2934 kg/ha) and Bragg (1801 to 2292, kg/ha) were due to increases in podslm2 alone.

scholarly journals Effect of shading on zinc deficiency symptoms in rice plant

1997 ◽  
Vol 43 (4) ◽  
pp. 933-936 ◽  
Author(s):  
Hitoshi Obata ◽  
Atsuo Shimoyama ◽  
Masanao Umebayashi
Keyword(s):  
Zinc Deficiency ◽  
Rice Plant ◽  
Deficiency Symptoms

ZINC DEFICIENCY IN EASTERN ONTARIO ORCHARDS

1964 ◽  
Vol 44 (2) ◽  
pp. 195-200 ◽  
Author(s):  
H. B. Heeney ◽  
G. M. Ward ◽  
W. M. Rutherford
Keyword(s):  
Zinc Oxide ◽  
Zinc Deficiency ◽  
Zinc Sulphate ◽  
Zinc Level ◽  
Average Level ◽  
Deficiency Symptoms ◽  
Eastern Ontario ◽  
Zinc Levels

Typical symptoms of zinc deficiency were found in McIntosh, Northern Spy, and Delicious varieties of apples in at least 50% of the orchards sampled in eastern Ontario. The average level of zinc in the foliage collected in mid-July from those orchards showing zinc deficiency symptoms was 10.1 p.p.m. compared with 15.9 p.p.m. in material from orchards not showing symptoms. There was no evidence of varietal effects on zinc level. There was considerable variation in zinc levels in deficient orchards between 1959 and 1960 but no variation in the level of foliage from normal trees. Summer sprays of 0.2% zinc oxide or 0.15% zinc sulphate applied May 30 corrected the symptoms.

Response of green gram to potassium and zinc application

1984 ◽  
Vol 102 (1) ◽  
pp. 253-255
Author(s):  
B. Singh ◽  
B. S. Badhoria
Keyword(s):  
Green Gram ◽  
Cereal Crops ◽  
Zinc Treatment ◽  
Yield And Quality ◽  
Growth Attributes ◽  
Grain Yield And Quality ◽  
Positive Effect ◽  
Zinc Application

Green gram is one of the most important kharif pulse crops of India. It is of short duration, can fit well in crop rotation and, therefore, can be grown throughout the year. Information has been accumulating concerning the role of potassium and zinc in cereal crops but very little information is available regarding the nutrition of potassium and its interaction with zinc on the yield and quality of pulses. However, Malewar, Budhewar & Jadhav (1980) and Ghildiyal, Saini & Sirohi (1975) have reported significant positive effect of zinc treatment on growth attributes in green gram. The present investigations were, therefore, planned to study individual and interaction effects of potassium and zinc on growth, dry-matter and grain yield and quality of green gram.

Responsiveness of wheat (Triticum aestivum) to liquid and granular phosphorus fertilisers in southern Australian soils

Soil Research ◽  
2005 ◽  
Vol 43 (2) ◽  
pp. 203 ◽  
Author(s):  
T. M. McBeath ◽  
R. D. Armstrong ◽  
E. Lombi ◽  
M. J. McLaughlin ◽  
R. E. Holloway
Keyword(s):  
South Australia ◽  
Field Trials ◽  
Soil Types ◽  
P Availability ◽  
Alkaline Soils ◽  
Soil P ◽  
Caco3 Content ◽  
Wide Range ◽  
P Application ◽  
Yield Responses

Recent field trials on alkaline soils in southern Australia showed significant grain yield responses to liquid compared with traditional granular forms of P fertiliser. However the advantages of liquid over granular P forms of fertiliser has not been consistent on all soil types. In order to better predict the soil types on which liquid P fertilisers are likely to have potential, a glasshouse trial was conducted to compare the responsiveness of wheat to both liquid and granular forms of P on a wide range of Australian soils. A granular P fertiliser (triple superphosphate) and 2 liquid fertilisers (phosphoric acid and ammonium polyphosphate) were compared at a rate equivalent to 12 kg P/ha in 29 soils representing many of the soil types used for grain production in Victoria and South Australia. Wheat biomass was enhanced by P application in 86% of the soils tested. In 62% of the P-responsive soils, wheat dry matter was significantly greater when liquid P fertilisers were used compared with the granular form. Chemical analysis of the soils tested showed that the better performance of liquid P forms was not correlated to total P concentration in soil, P buffer capacity, or P availability as measured by Colwell-P. However, there was a significant positive relationship between calcium carbonate (CaCO3) content of soil and wheat responsiveness to liquid P fertiliser.

Zinc Nutrition of Jarrah (Eucalyptus marginata Donn ex Smith) Seedlings

1986 ◽  
Vol 34 (1) ◽  
pp. 41 ◽  
Author(s):  
IM Wallace ◽  
B Dell ◽  
JF Loneragan
Keyword(s):  
Zinc Deficiency ◽  
Shoot Apex ◽  
Dry Matter ◽  
Zinc Concentration ◽  
Eucalyptus Marginata ◽  
Plant Parts ◽  
Deficiency Symptoms ◽  
Phosphorus Accumulation ◽  
Young Leaves ◽  
Zinc Concentrations

The relationships of seven levels of zinc supply to dry matter and zinc concentration were assessed for jarrah (Eucalyptus marginata Donn ex Smith) seedlings grown for 84 days in a zinc-deficient sand in the glasshouse. Zinc deficiency symptoms appeared within 28 days of sowing as a change in leaf colour of young leaves from green to bronze. Later, red areas developed and these became necrotic in severe cases. These symptoms were accompanied by decreased shoot and root dry weights. Zinc concentrations in various plant parts were low and, with the exception of the shoot apex, showed little response to zinc supply. Concentrations at the shoot apex varied from 3�g/g in deficient plants to 12�g/g in plants with adequate zinc supply. We suggest that of the plant parts analysed, the shoot apex is the only one which may be useful in defining zinc status of jarrah seedlings. Critical zinc concentration for this tissue was between 10 and 12 �g/g dry matter. Phosphorus concentrations in all plant parts, except the shoot apex, increased to very high levels with increasing zinc deficiency. It is suggested that some zinc deficiency symptoms of jarrah seedlings, e.g. necrosis, may have resulted from phosphorus accumulation due to zinc deficiency.

Grain yield responses of faba bean (Vicia faba L.) to applications of fertiliser phosphorus and zinc.

2000 ◽  
Vol 40 (6) ◽  
pp. 849 ◽  
Author(s):  
M. D. A. Bolland ◽  
K. H. M. Siddique ◽  
R. F. Brennan
Keyword(s):  
Grain Yield ◽  
Vicia Faba ◽  
Western Australia ◽  
Faba Bean ◽  
Grain Production ◽  
Alkaline Soils ◽  
Grain Yields ◽  
Vicia Faba L ◽  
Yield Responses ◽  
Zinc Fertiliser

Seed (grain) yield responses of faba bean (Vicia faba L. cv. Fiord) to applications of fertiliser phosphorus (0, 5, 10, 20 and 40 kg P/ha as triple superphosphate) and zinc (0, 0.5, 1 and 2 kg Zn/ha as zinc oxide) were measured in 3 field experiments conducted in 1997 and 1998 on neutral to alkaline soils in south-western Australia. Additions of fertiliser phosphorus significantly (P<0.001) increased grain yields by about 50 and 100% in 2 experiments, but in the third experiment differences in grain yield due to applications of fertiliser phosphorus were not significant (P>0.05). Increases in grain yields due to zinc fertiliser were small (<10%) and were only significant (P<0.05) in 1 experiment. This suggests the 3 sites chosen had adequate soil zinc for grain production of faba bean. In 1 experiment the increase in grain yield due to addition of phosphorus fertiliser was due to an increase in the number of pods per plant; numbers of seed per pod and mean seed weight were unaffected by additions of phosphorus and zinc fertiliser. Adding phosphorus and zinc fertiliser increased concentrations of both elements in grain, but had no effect on the concentrations of other nutrient elements (N, K, S, Ca, Mg, Na, Cu, Mn, Fe) measured in grain. These findings support results of a previous study in Western Australia indicating that phosphorus is the major nutrient element deficiency for grain production of faba bean in neutral to alkaline soils.

Reaction of zinc with soil affecting its availability to subterranean clover. 2. Effect of soil properties on the relative effectiveness of applied zinc

Soil Research ◽  
1990 ◽  
Vol 28 (2) ◽  
pp. 303 ◽  
Author(s):  
RF Brennan
Keyword(s):  
Plant Growth ◽  
Soil Properties ◽  
Relative Effectiveness ◽  
Multiple Linear Regression Model ◽  
Subterranean Clover ◽  
Free Calcium ◽  
Alkaline Soils ◽  
Growth Responses ◽  
Matter Production ◽  
Zinc Application

The effect of moist incubation on the availability of applied zinc was examined on a range of Australian soils. Incubating soil with applied zinc decreased the uptake of zinc by subterranean clover and DTPA extractable zinc (ZnD) on all soils relative to freshly applied zinc. On soils where plant growth was increased by zinc application, prior incubation of the soil led to decreased plant growth responses to zinc. The relative effectiveness (RE) of zinc application for subterranean clover growth was measured by dry matter production, uptake of zinc by shoots and ZnD. Values obtained by all three methods of determining the RE were closely correlated. The extent of the decline in availability with incubation differed among soils being greater in alkaline soils, in soils with high clay contents, in soils with high levels of organic carbon , and in soils with free calcium carbonate. A multiple linear regression model was used to explain the relationship between the RE and the soil properties (r2 > 0.87).

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