Vol. 7 (3) : May-June 2016 issue
Green Farming Vol. 7 (3) : 615-618 ; May-June, 2016
Effect of different fertility levels and weed management practices on productivity, profitability, soil fertility and weed dynamics in winter maize (Zea mays L.)
SANJU KUMAWAT1*, A.C. SADHU2, SEEMA SHARMA3 and HANSA LAKHRAN4
Deptt. of Agronomy, B.A. College of Agriculture, Anand Agricultural University, Anand - 388 110 (Gujarat)
Designation : 1Ph.D. Res. Scholar *(kumawatsanju5@gmail.com), 2Professor, 3Asstt. Professor, 4P.G. Student
Subject : Agronomy and Crop Production
Paper No. : P-3988
Total Pages : 4
Received : 21 July 2015
Revised accepted : 25 April 2016
Get Access
Citation :
SANJU KUMAWAT, A.C. SADHU, SEEMA SHARMA and HANSA LAKHRAN. 2016. Effect of different fertility levels and weed management practices on productivity, profitability, soil fertility and weed dynamics in winter maize (Zea mays L.). Green Farming Vol. 7 (3) : 615-618 ; May-June, 2016
ABSTRACT
Field experiment was conducted at B. A. College of Agriculture, Anand (Gujarat) during rabi season of 2012-13 to evaluate the effect of fertility levels and weed management on growth, yield attributes and yield of rabi maize (Zea mays L.) under middle Gujarat conditions. The experiment consisted of three fertility levels and five weed management practices were replicated four times in factorial randomized block design. Results of the experiment revealed that 125 % RDF gave significantly higher plant height 42.2, 100.9 and 214.9 cm at 30, 60 DAS and at harvest, number of grain rows cob-1 (14.82), cob weight (145.85 g), grain (4795 kg ha-1) and stover (7770 kg ha-1) yields, protein content (10.43 %), net return (57509 ` ha-1) and B:C ratio (3.29), available N (229.1 kg ha-1) and P2O5 (51.18 kg ha-1) as compared to 75 % RDF and it was at par with 100 % RDF. Among all weed management practices interculturing along with hand weeding at 20 and 40 DAS gave significantly higher values of most of characters studied over un-weeded check. Atrazine @ 0.5 kg ha-1 + pendimethalin @ 0.25 kg ha-1 (PE) was also equally effective in increasing yield and gave significantly lowest weed index (4.79 %).
Key words :
Economics, Fertility levels, Maize, Protein content, Weed control efficiency, Weed index, Yield & quality.