The input data for the present study were collected
from the Agricultural Research Institute of Acharya N.G.
Ranga Agricultural University, Hyderabad. The Institute
is in the southern Telangana agro-climatic zone of
Andhra Pradesh. The total experimental farm area is
122.7 ha and it is situated between lat. 17°19′19″N–
17°19′42″N and long. 78°23′25″E–78°24′6″E. The farm
area forms a part of the Survey of India toposheet 56
K/7/SE of 1 : 25,000 scale. The soil type is mainly gravelly
clay with gentle slope. The maximum topographic
elevation is 543.2 m amsl (Figure 2).