India is the largest producer of oilseeds in the world in terms of output. Sulphur deficiency is observed primarily due to high crop yield and therefore higher rate of S removal by crops, and lesser use of S-containing fertilizers. As with Sulphur, Boron (B) is also one of the micronutrients required for normal growth and development of many crops. Sunflower is one of the most sensitive crops to B deficiency. This experimentation was conducted to enhance growth and yield, quality, nutrient uptake, post-harvest soil nutrient status and Sulphur use efficiency of sunflower.
The Field investigations were conducted in two locations viz., at Experimental
Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University,
Annamalai Nagar, Tamil Nadu during March – June 2013 and at farmers’ field at
Ko-Chathiram village, Kurinjipadi block, Cuddalore district, Tamil Nadu during
July- October 2013 to study the effect of different levels of sulphur and boron
on growth, yield attributes and yield of hybrid sunflower cv. Sunbred. The
treatment consisted of Sulphur with five levels (0, 15, 30, 45, 60 kg S ha-1)
and three levels of boron (0, 0.5, 1.0 kg B ha-1). Totally fifteen treatments
were tested and were laid out in the factorial concept of randomized block
design with three replications.
The results revealed that growth, yield attributes and yield, quality, nutrient
uptake, post-harvest soil nutrient status and sulphur use efficiency were
significantly influenced by various S levels in the B levels. Among the
different levels of sulphur tried, application of 60 kg S ha-1 with B @ 1 kg
ha-1 significantly recorded maximum growth, yield attributes and yield,
quality, nutrient uptake, post-harvest soil nutrient status and sulphur use
efficiency of hybrid sunflower while 0 kg S ha-1 with B @ 1 kg ha-1 registered
minimum values for growth and yield of sunflower. Boron levels significantly
influenced the seed and stalk yield in both crops. Among the treatment
combinations tried, 60 kg S ha-1 with B @ 1 kg ha-1 has a spectacular effect on
growth and yield attributes, ultimately leading to maximum seed yield (2573.25
and 2673.84 kg ha-1) in both crops. The lowest values of growth and yield
attributes and yield were recorded by 0 kg S ha-1 with B @ 1 kg ha-1. The oil
content of sunflower seeds was significantly influenced by Sulphur application.
Author(s) Details:
Kalaiyarasan C.,
Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
D. Tamizhselvan,
Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
S. Jawahar,
Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
S. Ezhilkumar,
Department of Genetics and Plant Breeding, Faculty of Agri., Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
K. Suseendran,
Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
S. Madhavan,
Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
S. Ramesh,
Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar-608 002 (T.N.), India.
Please see the link here: https://stm.bookpi.org/RACAS-V4/article/view/13482
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