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Effect of Different Doses of Vermicompost in Combination with Chemical Fertilizers in a Potato-wheat-mungbean-t Aman Cropping Pattern

S. M. Mahbubul Alam
Wheat Research Centre, BARI

M. Bodruzzaman
Wheat Research Centre, BARI

M. A. Sadat
Wheat Research Centre, BARI

Abstract/ Executive Summary:

A long-term experiment has been initiated at Wheat Research Centre, Nashipur, Dinajpur in 2012-13 to know the impact of different doses of vermicompost in combination with chemical fertilizers in a Potato-Wheat-Mungbean-T.Aman cropping pattern. The experiment was placed in randomized complete block design with 3 replications. There were 7 treatments, T₁(absolute control), T₂(100% recommended chemical fertilizer), T₃(75% recommended chemical fertilizer), T₄(75% RCF + 2.5 t ha^-1 vermicompost), T₅(75% RCF + 5 t ha^-1 vermicompost), T₆(100% RCF + 2.5 t ha^-1 vermicompost) and T₇(100% RCF + 5 t ha^-1 vermicompost). The yield and yield contributing characters of potato, wheat, mungbean and T.aman were significantly influenced by the treatments. The highest yield of potato (20.2 t ha^{- 1}in 2012 and 18.73 ha^{- 1}in 2013) was found in the T₇(100% RCF + 5 t ha^-1 vermicompos) that was significantly higher than all other treatments. The highest wheat (5640 kg ha^-1)in 2013-14, mungbean (1398 kg ha^-1), and T.aman (5550 kg ha^-1) yields were obtained in T₇(100% RCF + 5 t ha^-1 vermicompost) and that were significantly higher than all other treatments.

Keywords: Vermicompost, Potao, Wheat, Mungbean, T. aman, Cropping pattern

Location: Nashipur, Dinajpur

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Farming System

Commodity: Wheat, Rice, Potato, Mungbean

Objectives:

The main objective of this study is to evaluate the impact of different dozes of vermicompost with chemical fertilizers on growth and yield of wheat and potato on a Potato-Wheat-Mungbean-T.aman

Methodology:

The experiments was conducted at Wheat Research Centre research farm, Nashipur, Dinajpur to know the impact of vermicompost in combination of chemical fertilizer in a Potato-Wheat-Mungbean-T.Aman cropping pattern. The soil of experimental site was strongly acidic (soil pH- 4.98). The experiment was placed in randomized complete block design with 3 replications. There were 7 treatments for the experimentation. The treatments were T₁(absolute control), T₂(100% recommended chemical fertilizer), T₃(75% recommended chemical fertilizer), T₄(75% RCF + 2.5 t ha^-1 vermicompost), T₅(75% RCF + 5 t ha^-1 vermicompost), T₆(100% RCF + 2.5 t ha^-1 vermicompost) and T₇(100% RCF + 5 t ha^-1 vermicompost). RCF means recommended chemical fertilizer. The vermicompost was applied to the plots during the final land preparation and incorporated with the soils, before potato planting and the residual effect of vermicompost was observed in wheat. The recommended dose was 100 kg N, 27 kg P, 50 kg K, 20 kg S and 1 kg B ha^-1for wheat, 150 kg N, 50 kg P, 140 kg K, 25 kg S, 1 kg B, 4 kg Zn and 10 kg Mg ha^-1 used for potato and 70 kg N, 10 kg P, 40 kg K, and 10 kg S and 2 kg Zn ha^-1for rice. In case of mungbean, only 20 kg N was received all treatments and kept in variation for mungbean same which were created in wheat, rice and potato. The sources of N, P, K, S, B and Zn were urea, TSP, MoP, gypsum, boric acid, zinc sulphate and magnasium sulphate respectively. For wheat, all fertilizer along with 2/3 urea was applied in final land preparation. Rest of the urea was applied after 1^stirrigation at CRI stage. Three irrigation were applied at CRI, anthesis and grain filling stages and weeding had been done once before 1^stirrigation. For potato, all fertilizer along with 1/2 urea was applied in final land preparation. Rest of the urea was applied before 2^ndearthing up. Earthing up had been done twice, 1^st in the time of planting and 2^nd after 35 days of planting. Weeding was done twice. Three irrigation were applied for Potato after 25 days, 40 days and 50 days of planting. Tilt was sprayed (@ 0.5ml litre^-1) once for wheat controlling leaf blight at anthesis stage. Furadon 5G (@ 15 kg ha^-1 and Ridomel Gold (@ 2ml litre^-1 were sprayed for controlling cutworm and late blight, respectlively. The fertilizer application and other management practices for mungbean and T.aman have been done following the recommendation for each crop to ensure normal growth. The variety Granola for potato, BARI Gom-26 for wheat, BARI Mung 6 for mungbean and BRRI Dhan 39 was used for T.aman. Yield and yield contributing parameters have been collected and analyzed in computer following MSTAT.

Source of Information: Annual Research Report, Wheat Research Centre, BARI--2013-14

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The MSs hill^-1, tuber weight hill^-1, tuber numbers hill^-1 and yield of potato were significantly influenced by the imposed treatments. The highest potato yield was recorded as18.73 t ha^-1 in the treatment T₇(100% RCF + 5 t ha^-1 vermicompost) that was significantly higher than all other treatments. The higher yield was contributed by the higher tuber weight hill^-1. The yield was significantly higher in T₄(75% RCF + 2.5 t ha^-1 vermicompost) than in T₃(75% recommended chemical fertilizer) in the year 2013, and similar in 2012. The yield of T₅(75% RCF + 5 t ha^-1 vermicompost) was significantly higher than T₄(75% RCF + 2.5 t ha^-1 vermicompost). Also the yield in T₅(75% RCF + 5 t ha^-1 vermicompost) at per with T₂(100% recommended chemical fertilizer) and T₆(100% RCF + 2.5 t ha^-1 vermicompost) indicating that vermicompost in combination of 75% recommended chemical fertilizer was able to produce higher yield of potato. For wheat, spike length, spikes m^-2, grains spike^-1, 1000 grain weight and yield were significantly influenced by the imposed treatments. The highest spike length, spikes m^-2and yield were found in T₇ (100% RCF with 5 t ha^-1vermicompost) and significantly higher than all other treatments in 2013-14. The treatment T₄ (75% RCF + 2.5 t ha^-1 vermicompost) also produced significantly higher yield compared to T₃(75% Recommended chemical fertilizer) in both year. In 2012-13 T₇(100% RCF with 5 t ha^-1vermicompost) produced similar yield to T₂(100% RCF), T₄(75% RCF + 2.5 t ha^-1 vermicompost)_, T₅(75% RCF + 5 t ha^-1 vermicompost) and T₆(100% RCF + 2.5 t ha^-1 vermicompost) but in 2013-14 T₇(100% RCF with 5 t ha^-1vermicompost) produced significantly higher yield than all other treatments. The result indicated that addition vermicompost in combination with 75% recommended chemical fertilizer produced higher yield than sole 75% or 100% recommended chemical fertilizer. The plants m^-2, nodules plant^-1, 1000 grain weight and yield of mungbean were significantly differed among the imposed treatments. The highest pods plant^-1 and seeds pod^-1 were found in T₇ (100% RCF with 5 t ha^-1vermicompost) that were significantly higher than all other treatments except T₂(100% RCF) and T₆(100% RCF + 2.5 t ha^-1 vermicompost). The highest Nodules plant^-1 was found in T₂(100% RCF) that was significantly higher than all other treatments except T₅(75% RCF + 5 t ha^-1 vermicompost) and T₆(100% RCF + 2.5 t ha^-1 vermicompost). The highest plants m^-2 was recorded in T₇ (100% RCF with 5 t ha^-1vermicompost) that was significantly higher than T₁(Absolute Control) and T₃(75% RCF). The yield of T₄(75% RCF + 2.5 t ha^-1 vermicompost) was significantly higher than T₃(75% RCF) indicating that vermicompost in combination of 75% recommended chemical fertilizer was able to produce higher yield of mungbean. Panicle hill^-1, grains panicle^-1, 1000 grains weight and yield of rice were significantly influenced by the added treatments. The highest grains panicle^-1 and yield of rice was recorded in T₇(100% RCF + 5 t ha^-1 vermicompost) that was significantly higher than all other treatments. Statistically similar yield was produced by the T₂(100% RCF) and T₅(75% RCF + 5 t ha^-1 vermicompost) that indicate 5 t ha^-1 vermicompost with 75% RCF able to get higher yield of crop. Treatment T₇(100% RCF + 5 t ha^-1 vermicompost) produced higher yield of mungbean compared to T₂(100% RCF). The result indicates that vermicompost was able to produced higher yield.

Knowledge Management: Report/Proceedings