Soil Science - Study Mode

[#446] . . . . . . . . refers to a condition in which a crop needs more of a given nutrient yet has shown no deficiency symptom
Correct Answer

(C) Hidden hunger

Explanation

Solution: Hidden Hunger refers to a condition in which a crop needs more of a given nutrient yet has shown no deficiency symptom. With most nutrients on most crops, significant responses can be obtained even though no recognizable symptoms have appeared. Testing of plants and soils helps plan or modify plant-nutrient programs to avoid this problem of hidden hunger in subsequent crops.

[#447] FYM contains
Correct Answer

(A) 0.5% N

Explanation

Solution: FYM stands for Farmland Manure and is an important organic resource for agricultural production in livestock-based farming systems in the semi-arid tropics of India. It contains well-decomposed farmyard manure with 0.5% nitrogen, 0.2% P 2 O 5 and 0.5% K 2 O .

[#448] Range of Hue in Munsell color chart is
Correct Answer

(A) 0 - 10

Explanation

Solution: Munsell colour chart is a colour space that specifies colour based on three properties of colour that is hue, Chroma (colour intensity) and Value(lightness) . Hue stands for basic colour. It was created by Professor Albert H. Munsell in the first decade of the 20 th century. Each horizontal circle Munsell divided into five principal hues i.e. Red, Yellow, Green, Blue and Purple. The range of hues in the Munsell colour chart is 0 - 10.

[#449] Dry ashing for plant analysis is suitable for
Correct Answer

(B) B

Explanation

Solution: Dry Ashing is a technique for analyzing plants and it is performed by placing a sample in an open inert vessel destroying the combustible portion of the sample by thermal decomposition using a muffle furnace. Dry ashing methods are used for the mineralization of organic materials, biological tissues, liquids, plant and foodstuff and sludge. It is suitable for the analysis of element Boron in plants.

[#450] Jute bags can be stacked higher than HDPE bags because they are
Correct Answer

(C) less slippery

Explanation

Solution: Jute bags are first of all eco-friendly, biodegradable, and made up of plant products so they will be less harmful to food grains also it is made up of strong natural fibre. And for stacking purposes in the storage godowns, jute bags can be stacked higher than HDPE (High-Density Polyethylene) bags as jute bags are less slippery than plastic bags.