Rhizoplane is________?
Which chemical used to prevent evaporation from surface of water in water bodies?
Composition of igneous rock is determined by__________?
Who will decompose organic matter first:
Process of mixing of soils is known as_________?
Walkley and Blacks method of organic matter determination allows recovery of _____% organic carbon content:
The soil samples are dried at __________, for gravimetric soil analysis?
The appropriate method to apply phosphatic fertilizers is__________?
Integrated Nutrient Management (INM) is a well-accepted approach for the sustainable management of________?
Organic (O) horizon is absent in_________?
Association of two microorganisms in which one is benefited while other remains unaffected is known as:________?
What is Vesicular Arbuscular Mycorrhiza (VAM)?
The very high temperatures required for ICP-AES are attained by__________?
Exposure of the manures to rains causes highest loss of__________?
In cotton, zn deficiency is known as_________?
1 mg of H+ will be equal to_________?
The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by__________?
The credit for identifying the essentality of K, Ca, Mg and P to planta goes to________?
Rate of entry of water in soil is__________?
Which leaf of rice is sampled for tissue nutrient analysis?
During decomposition of organic matter, inititial decomposition is dominated by:__________?
The instrument used for measuring the photosynthetically active radiations (PAR) is:________?
The credit for identifying the essentality of nitrogen to plants goes to________?
What kind of nitrogenous (N) fertilizers should not be used for flooded soil:
1 meq of HCl is equal to_________?
Organisms satisfying their carbon requirement as Co2 from atmosphere and energy requirement from oxidation of simple inorganic compound are called as_________?
Loss of nitrogen in the form of NH3 in alkaline medium is known as_________?
Browning disease of rice is a_________?
If a manure pile is exposed to the rain, what nutrient will be lost the most ?
What is the optimum temperature and pH for nitrifying bacteria ?
The first mechanism to start in the wind erosion is_________?
The indicator used for estimation of the soil available boron is_______?
Source of negative charges on silicate clays is/ are________?
Soil order characterized by excess of weathering with dominant iron and aluminium oxide clays, common in tropics is_________?
1 bar is equal to_________?
Select the water soluble phosphatic fertilizer from the following__________?
Journal ‘Plant and Soil’ is published from__________?
Most out standing green manure crop is__________?
Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:
One ha cm of water is equal to__________?
In cation exchange, 18 mg of Ammonium ion can be exchanged for__________?
The maximum amount of water which a soil can hold after free drainage has ceased is called as_______?
In Pakistan, The following igneous rocks are found over considerable areas:
__________ consist of particles that are produced by disintegration of pre-existing rocks through the process of weathering:
Basalt is a __________ rock:
‘A’ horizon of the soil is also designated:
Weathering process-physical, chemical, and biological __________, the rocks and minerals into simpler products which either accumulate in place or are transported to other places where they become soil parent materials?
Rocks and weathered materials transported by __________ ,act as initial materials for soil formation?
From the point of view of crop production, Soil testing refers to__________?
The diagnostic techniques used in evaluating soil nutrient status and determining fertilizer requirements of the crop include:
The major soil fertility problems in Pakistani soils deficiencies of N, P and Zn. Deficiencies K, Fe, and B also occur in specific crop genotypes or soil types, while deficiencies of S, Cu, and Mn are negligible. however, the common nutrient deficiencies are__________: and some micronutrients including Mo?

Rhizosphere is:

A. Area with in the roots
B. Root surface
C. An area of soil in from root surface to 10 cm
D. An area of soil in immediate vicinity around root

Submitted by: Shafiq Rehman

Correct Answer: An area of soil in immediate vicinity around root ✔

Last Updated: November 05, 2020