K.T. DIMPLE*, C. NAGAMANI, V. CHANDRIKA, A.R. NIRMAL KUMAR AND G. KARUNA SAGAR
Department of Agronomy, S.V. Agricultural College, ANGRAU, Tirupati – 517 502.

ABSTRACT

A field experiment was conducted during kharif, 2019 on sandy loam soils of dryland farm of S.V. Agricultural College,
Tirupati campus of Acharya N.G. Ranga Agricultural University. The experiment was laid out in split-plot design with three
replications having four times of sowing II FN of June (S1), I FN of July (S2), II FN of July (S3), and I FN of August (S4) as main
plots and four nitrogen levels viz., 0 kg N ha-1 (N1), 20 kg N ha-1 (N2), 40 kg N ha-1 (N3) and 60 kg N ha-1 (N4) as sub plots. Among
different sowing times tried, II FN of June (S1) sown crop resulted in the higher grain yield, straw yield and nutrient uptake at
harvest. Whereas, higher post- harvest soil available nutrients were noticed with I FN of August (S4) sown crop. The lowest grain,
straw yield and nutrient uptake were realized with I FN of August (S4) sown crop. Crop sown during II FN of June (S1) resulted
in lowest post- harvest soil nutrient status. Application of 60 kg N ha-1 (N4) markedly improved the grain and straw yield of crop
while, their lowest with no nitrogen (N1) application. Similar trend was followed with regard to nutrient uptake of the crop at
harvest and post- harvest soil available nitrogen. Whereas, higher post- harvest soil available phosphorus and potassium were
recorded with control and their lowest values were obtained with application of 60 kg N ha-1 (N4).

KEY WORDS:

Nitrogen levels, nutrient status, nutrient uptake, proso millet, times of sowing