Soil Fertility & Fertilizer Use

The weed density in a control plot (weedy check) is 50 per sq. m and in a herbicide treated plot 35 per sq. m, calculate weed control efficiency (%)

The operational range for electrical resistance block is

Ina strip plot design with three replications, six horizontal plots and three vertical plots; the degrees of freedom of error used to test the variation between the interaction are

Statistical procedures employed in making inferences about treatments hold good only when there is

Which of the following weeds is a C4 monocot weed ?

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Given below are two statements

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The correct order of plant species according to preponderance of weed species is

Pendimethalin is to be applied at the rate of 1 kg ai/ha in 600 litre water /ha. If the commercial product has 30EC, what quantity of commercial product of herbicide and volume of water will be needed to cover an area of 4000 m2

Which of the following mixtures of herbicides control annual grasses, broad-leaved weeds and sedges in wheat under conservation agriculture? (A). Sufosulfuron + metsulfuron (8). Mesosulfuron + idosutfuron (C). Isoproturon + metsulfuron

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To test the equality of mean yield of a crop from two independent fields treated alike except the fertilizer, the scientist has to use

Transformation of data is not required in which of the following situations?

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