EFFECT OF FYM, PHOSPHORUS, GROWTH STIMULANTS AND MULCH ON GERMINATION, GROWTH AND YIELD OF SUMMER GROUNDNUT (ARACHIS HYPOGAEA L.)
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Date
1997
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AAU, Anand
Abstract
A field experiment was conducted at the College Agronomy Farm, B.A.College of Agriculture, Gujarat Agricultural University, Anand Campus, Anand during summer season of the year 1995 to study the effect of FYM, phosphorus, growth stimulants and mulch on germination, growth and yield of summer groundnut (Arachis hvpoaaea L.) . 'The soil of the experimental plot was loamy sand in texture having good drainage with 7.8 pH. The soil was deficient in nitrogen, medium in available phosphorus and fairly high in available potash. Forty treatment combination involving two levels, each of FYM (0 and 10 t ha-1) and phosphorus (0 and 50 kg P2O5 ha-1) coupled with five levels of growth stimulants (Control, Humic acid seed treatment, Humic acid foliar spray, Humic acid seed treatment + Humic acid foliar spray and M.S.Ill N foliar spray) and two levels of mulch (unmulched and mulched). The experiment was laid out in a split - split plot design with three replication, wherein combination of FYM levels and phosphorus levels were embeded in main plots growth stimulants in sub plots while mulch were assigned to sub-sub plots. The results revealed that application of FYM had significantly increased the plant height at 20 DAS and at harvest, number of pegs per plant, number of mature pods per plant, shelling percentage, test weight, pod yield, haulm yield, oil content and reduced the number of immature pods per plant, whereas, weed count at 7 DAS and weed dry weight remain unaffected by the application of FYM. Application of FYM @ 10 t ha-1 gave more pod yield over no FYM application. Application of phosphorus did not show significant influence on any of the growth attributes, viz., plant height, number of primary branches per plant and on the yield attributes and yield viz., number of mature pods per plant, number of immature pods per plant, shelling percentage, test weight, pod yield, haulm yield and oil content, however, plant height at 20 DAS and pegs per plant were influenced significantly. Growth stimulants (Humic acid and MS-III N) did not show its effect on any growth attributes, yield attributes and yield except plant height (cm) at harvest and number of pegs per plant. Mulching the soil with black polythene significantly influenced the seed germination at 7 DAS however at 20 DAS it did not exert significant influence on seed germination. Weed count and weed dry weight were significantly reduced due to mulching with black polythene. Mulching with black polythene significantly influenced the plant height at 20 DAS and at harvest, number of pegs per plant, number of mature pods per plant, shelling percentage, test weight, pod yield and haulm yield. The number of immature pods per plant were significantly reduced due to mulching, the number of primary branches per plant and oil content was not influenced significant due to mulching with black polythene.
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AGRONOMY, AGRICULTURE, A STUDY