Performance of peanut varieties as affected by planting distance, inoulation and fertilizer application under orchard-based cropping system
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Date
1991
Authors
Ruby D. Aquino
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Abstract
The study was conducted under 7-year-old bearing cashew plants aimed at: 1) comparing the performance of two peanut varieties under orchard-based cropping system; 2) establish recommended planting distance of peanut under orchard-based condition; 3) verify the critical level of fertilizer requirement for peanut production under orchard-based condition; and 4) determine the interaction effect among variety, planting distance and fertilizer levels.
BPI-Pn9 matured earlier than IPB-Pn 24-3 with a maturity days of 98 and 101, respectively. BP-Pn 9 and IPB-Pn 24.3 performed comparably the same under orchard-based condition. Significant variations existed on the interactions between varieties and fertilizer application. IPB-Pn 24-3 is superior over BPI-Pn 9 both were inoculated alone yielded comparably when applied with 30-30-30 kg NPK/ha with and without rhizobium inoculation.
The application of 30-30-30 kg NPK/ha alone out yielded significantly all the other fertilizer treatments evaluated. Inoculating the seeds did not significantly improve the seed yield of peanut. The same trends of results were obtained from all the other parameters evaluated.
Inoculating the seeds alone resulted to plants that yielded comparable with the unfertilized plants. This is also true for all the other parameters evaluated. Results showed that the amount of nitrogen fixed by the introduced rhizobia was not enough for the nutrition of peanut palnts. Furthermore, addition of inoculant to plants fertilized with 30-30-30 kg NPK/ha did not improve the performance of peanut under orchard-based condition. Results implied that the application of 30-30-30 kg NPK/ha is enough for better performance of peanut under orchard-based condition.
In terms of planting distance, 25 cm between rows significantly increased seed yield of 110.84 as well as DMY of 3.73 t/ha yield. This was probably due to higher plant population at 25 cm between row distance compared to 50 cm between row distance.
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Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Plant production::Agronomy