Question
Which of the following statements is/are true about soil
pH and nutrient availability? Statement A: Most essential plant nutrients are readily available to plants at neutral pH (pH 7). Statement B: Acidic soils (low pH) tend to have reduced availability of nutrients like phosphorus (P). Statement C: Alkaline soils (high pH) promote the uptake of micronutrients such as iron (Fe).Solution
Most essential plant nutrients are readily available to plants at neutral pH (around pH 7). This is the pH range where nutrient solubility and plant root uptake are optimized. Acidic soils (low pH) tend to have reduced availability of nutrients like phosphorus (P). In acidic conditions, phosphorus becomes less soluble and may form insoluble compounds, limiting its uptake by plant roots. Alkaline soils (high pH) can actually limit the availability of certain micronutrients, such as iron (Fe). In alkaline conditions, iron can become less soluble and less accessible to plants.
The grouped data for the observations are
Class:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1-3Â Â Â Â Â Â Â Â Â 3-5Â Â Â Â Â Â Â Â Â 5-7
A dice was thrown 400 times and 'six' resulted 80 times. The data is used to justify the hypothesis of an unbiased dice at 95% confidence. With referen...
From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is
Second differencing in time series can help to eliminate which trend?
(I) Quadratic trend
(II) Linear trend
The mode (correct to two decimal places) for the given data is:
For making frequency distribution, the number of classes used depends upon:
Marshall-Edgeworth Index number:
If the odds in favour of any random event A are 5 : 6, then the odds against the event are:
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