32.

33.

34.

35.

36.

87.

Straw checkerboard mulching, Stubble mulching, transposing, planting, paving, and
mulching are done before planting to enhance :

(^) Particle density (8) Stabilize sandunes

(C) Rate of evapotranspiration (D) None of the above

A 400 cm$ oven dry core has a bulk density of 1.2 g/em*. After water saturation oven-dry soil
weighs 680 grams, with a “pore volume to total volume ratio of 0.5”. The total soil porosity is :

(^) 80% (B) 25%
(C) 50% (D) None of the above options

Nano-porous materials can store water in the soil during the rainfall season and release it
during drought stress. Examples are :

(A) Nano urea (B) Nano hydrogels and zeolites
(C) (A) is wrong (D) (A) and (B) are right
A nano nitrogenous fertilizer with grade 4:0:0 available in the market is applied to the rice

crop at the rate of 1000 ml per ha of the formulation. If so, what is the quantity of N applied
to the crop?

(A) 88.5 8 (8) 40.52
(0 408 (0) 1008

Which of the following microbes have insecticidal activity :
(0) — Pasteuria penetrans
(1) Arthrobotrys dactyloides
(11) Paecilomyces lilacinus
(iv) Bacillus thuringiensis
(A) பொடு (B) Only (iv)
(೮) 0, (1) and (iii) (D) None of the above

Leaf webs found through out the season in mango is due to infestation of :
(^) Rastrococcus iceryoides (B) Acrocercops syngramma

(C) Orthaga exvinacea ൯) Deanolis albizonalis

9 002/2024
[P.T.0.]