Studies of the Zinc Requirements of Different Crops

SUMMARYA field experiment was conducted for two consecutive years commencing in 1979–80 on the Indo-Gangetic alluvial soil of Pura to investigate the requirements for zinc of wheat, chickpea, mustard and Egyptian clover. Chickpea and Egyptian clover were more sensitive to zinc deficiency than wheat and mustard, respectively. Average total dry matter production by Egyptian clover and wheat was larger than mustard and chickpea. Egyptian clover and wheat required more zinc to achieve maximum dry matter production but they also recovered from the soil a larger proportion of applied zinc than chickpea and mustard. Mustard produced the most dry matter per unit of zinc absorbed.

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EFFECTS OF SOME TRACE ELEMENTS ON GRASS AND LEGUME PRODUCTION IN NOVA SCOTIA

Canadian Journal of Plant Science ◽

10.4141/cjps62-006 ◽

1962 ◽

Vol 42 (1) ◽

pp. 46-52 ◽

Cited By ~ 3

Author(s):

G. G. Smeltzer ◽

W. M. Langille ◽

K. S. MacLean

Keyword(s):

Trace Elements ◽

Nova Scotia ◽

Chemical Composition ◽

Field Experiment ◽

Plant Tissue ◽

Dry Matter ◽

Soil Types ◽

Dry Matter Production ◽

Matter Production ◽

Legume Production

In a field experiment, conducted on four different soil types, trace elements cobalt, zinc, manganese, copper, sodium and molybdenum were applied by sprayer to a grass-legume sward in late September in both 1955 and 1956. Treatment differences were evaluated in terms of total dry matter production and by the chemical composition of the plant tissue. The elements applied were detectable in plant tissue, but herbage yields were not affected. Apparently the trace elements in these different soil types were in the range of sufficiency for maximum herbage production.

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Effect of potassium and zinc applications on dry-matter production and nutrient uptake by potato variety ‘Kufri chandramukhi’ (Solanum tuberosum L.) in an alluvial soil of Uttar Pradesh

Plant and Soil ◽

10.1007/bf02376814 ◽

1982 ◽

Vol 65 (1) ◽

pp. 141-147 ◽

Cited By ~ 3

Author(s):

K. N. Tiwari ◽

Vandana Nigam ◽

A. N. Pathak

Keyword(s):

Solanum Tuberosum ◽

Nutrient Uptake ◽

Potato Variety ◽

Dry Matter ◽

Solanum Tuberosum L ◽

Alluvial Soil ◽

Uttar Pradesh ◽

Dry Matter Production ◽

Matter Production

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Water use and productivity in sub. clover and murex medic swards. I. Dry matter production

Australian Journal of Agricultural Research ◽

10.1071/ar9930089 ◽

1993 ◽

Vol 44 (1) ◽

pp. 89 ◽

Cited By ~ 1

Author(s):

MJ Blumenthal ◽

RL Ison

Keyword(s):

Field Experiment ◽

Soil Water ◽

Water Use ◽

Dry Matter ◽

Total Yield ◽

Trifolium Subterraneum ◽

Dry Matter Production ◽

Dry Matter Yield ◽

South Wales ◽

Matter Production

A field experiment was established at Forbes in central-west New South Wales to investigate the hypothesis that the pattern and efficiency of water use varies between genotypes of both (Trifolium subterraneum) and murex medic (Medicago murex), and that this would affect the success of these genotypes in this environment. To test this hypothesis the productivity of two lines of M. murex (CD26 and CD53) and four cultivars of T.subterraneum (Seaton Park and Woogenellup, and two recently released cultivars, Junee and Dalkeith) were compared. Genotypes were grown both with and without irrigation and soil water was monitored for the duration of the field experiment (1987-1989). Soil water use differed little between genotypes, but when differences did occur they were related to maturity grading of the genotype with the earlier maturing cv. Dalkeith using more water without irrigation, and the later maturing cv. Junee using more water with irrigation. There was no evidence of sub. clover dry matter yield declining with time; total yield over the three years exceeded 18 000 kg/ha for all cultivars. Murex medic dry matter yields were higher than sub. clover in the year of sowing; however, dry matter yield in swards was depressed in the year following sowing and weeds contributed more to total sward yield compared to sub. clover in the third year. Both hard and soft-seeded subclover cultivars proved to be equally successful in terms of dry matter production with different cultivars performing better in different seasons and under different irrigation treatments. Sub. clover cvv. Dalkeith and Junee were able to take greater advantage of available soil water early. in autumn than the other genotypes. It was concluded that water availability is not the only factor limiting sub. clover and murex medic dry matter yield in this environment.

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Light interception and utilization in determinate and indeterminate cultivars of Vicia faba under contrasting plant distributions and population densities

The Journal of Agricultural Science ◽

10.1017/s0021859600078217 ◽

1991 ◽

Vol 116 (3) ◽

pp. 395-407 ◽

Cited By ~ 13

Author(s):

H. Stützel ◽

W. Aufhammer

Keyword(s):

Population Density ◽

Field Experiment ◽

Dry Matter ◽

Light Interception ◽

Light Extinction ◽

Dry Matter Production ◽

Population Densities ◽

Extinction Coefficients ◽

Matter Production ◽

Reduced Light

SUMMARYIn a 2-year field experiment at Hohenheim in 1987–88, with an intact or partly deflowered indeterminate cultivar and a determinate cultivar, light interception and dry matter production were highest in crops grown in isometric stands (equal distances between plants), lowest in double rows and intermediate in single rows. Dry matter production was greater at high than at low population density and in the wetter and cooler weather of 1987. Population density had a greater effect on DM production than on light interception. The greater leaf canopies under high density and in 1987 (Stützel & Aufhammer 1991) reduced light extinction coefficients. In the determinate cultivar, light extinction coefficients were consistently higher and light use efficiencies were consistently lower than in the indeterminate cultivar. Deflowering the indeterminate genotype and different planting designs did not change light use efficiencies and light extinction coefficients. In general, differences in light use efficiencies were inversely related to differences in light extinction coefficients.

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