Crop sequences for increasing cropping intensity and productivity

Abstract

Field experiments were conducted at the Central Research Station of Bangladesh Agricultural Research Institute (BARI) for three consecutive years (2011-12, 2012-13 and 2013-14) to study the comparative agronomic performance and economic return of different cropping sequences for increasing cropping intensity and productivity. Three cropping patterns (CP1 - Transplanted Aman rice (var:Binadhan-7)– Mustard (var:BARISarisha-14)– Boro rice (var:BRRIdhan-28)– Transplanted Aus rice (var:Parija), CP2 - T. aman rice – Potato (var:Diamont) – Boro rice – T. aus rice and CP3 - T. aman rice – Mustard (var:BARISarisha-15) – Mungbean (var:BARIMung-6) –T. aus rice) are based on four crops; and one cropping pattern (CP4 = T. aman rice – Fallow – Boro rice – Fallow) with two rice crops as control were tested. Four crops can be grown successfully one after another in sequence in all the three cropping patterns tested. On an average organic matter 3.56, 4.70, 3.58 and 2 t ha-1 were added to soil in CP1, CP2, CP3 and CP4 by incorporation of biomass of respective crops. The highest rice equivalent yield (REY) 34.10, 34.02 and 33.36 t ha-1 was obtained from the cropping pattern CP2 in 2011-12, 2012-13 and 2013-14, respectively and it was followed by CP1 and CP3. The highest average gross return (Tk.5,00,469 ha-1) and net return (Tk. 2,63,773 ha-1) were obtained from CP2 and it was followed by CP3 but the highest average B:C ratio (2.89) was obtained from the cropping pattern CP3 followed by CP2 (2.11) due to lower cost of production than in the former one. Four crops based patterns can be recommended for higher productivity, soil enrichment & economic benefit besides creating more employment opportunity.SAARC J. Agri., 13(1): 135-147 (2015)

Increasing cropping intensityand productivity through boro t.aus-t.aman-mustard cropping pattern in Bangladesh

“…Inclusion of mustard in rabi season and T.Aus in kharif-1 season in existing cropping pattern increased total productivity by 92 % compared to farmers' practice. These results are in agreement with Mondal et al (2015). They reported that total productivity increased by 67 % over farmers' practice.…”

“…The marginal benefit cost ratio (MBCR) also showed that inclusion of mustard and T.Aus in the existing pattern might be profitable and acceptable to the farmers. These results are supported by Mondal et al (2015). They reported that inclusion of T.Aus, potato, mustard and mungbean in the existing pattern were profitable and acceptable to the farmers and grown successfully one after another in sequence of one year cycle.…”

“…Result indicated that mustard and T.Aus rice could be easily fitted in Rice-Rice cropping pattern with an average of 35 days turn around time in a year. Similar trend was also observed by Mondal et al (2015) who reported that all the tested four crops pattern can be grown successfully one after another in sequence.…”

Screening of Sesbania accessions based on early biomass yield

“…In these cropping patterns, land remains fallow for more or less 80 days after Boro rice harvest (Haque et al, 2001;Khan et al, 2004). Four crops based cropping patterns (Boro rice-T. Aus rice-T. Aman rice-Mustard or Boro rice-Jute-T. Aman rice-Mustard) require 345-351 days excluding seedling age of rice crop and the land area remains fallow only for 14-20 days in a year (Mondol et al, 2015;Rahman et al, 2015). During the turnover period between Boro rice harvest and succeeding crop cultivation, the land remains fallow for 14-80 days.…”

Maximizing Yields, Nutrient Uptake and Balance for Mustard-Mungbean-T. Aman Rice Cropping Systems through Nutrient Management Practices in Calcareous Soils

“…Oilseed and pulse are the important group of crops in calcareous soils which are mostly grown in rabi (winter) and kharif-I (summer) season but area of those crops decreased due to increasing cultivation of irrigated boro (long durated) rice (FRG, 2012). Recently, developments of short duration varities of mustard, mungbean and rice have been created opportunity to accommodate three or more crops in same piece of land in a year (Mondal et al, 2015). Mustard (Brassica napus), mungbean (Vigna radiata) and T. aman rice (Oryza sativa L.) grown sequentially in an annual rotation constitute a mustard-mungbean-T. aman cropping system (Iqbal et al, 1990).…”