Fertilizer Recommendation for Four Crop Based Cropping Pattern: Potato- Boro- T. Aus-T. Aman Under AEZ – 11

Abstract

A field experiment on Potato-Boro-T. Aus-T. Aman cropping pattern was conducted in the High Ganges Floodplain Soil of Jashore (AEZ - 11) during 2014-2015 and 2015-2016 to find out optimum fertilizer management for intensive cropping attern, in relation to soil health.There were eight different treatments viz. T1=100% NPKSZnB (STB= Soil Test Based), T2=T1 + 25% N, T3=T1 + 25% NP, T4=T1 + 25% NK, T5=T1 + 25% PK, T6=T1 + 25% NPK, T7=75% of T1, and T8=Native fertility (control) as individual crop management. The experiment was laid out in randomized complete block design with three replications. Results revealed that the tuber yield of potato, grain yields of boro, T. Aus and T. Aman were significantly influenced by the fertilizer treatments. The maximum tuber yield (25.70 and 24.80 t ha-1), grain yields of boro (6.50 and 6.31 t ha-1), T. Aus (3.13 and 3.10 t ha-1) and T. Aman (3.95 and 3.98 t ha-1) was obtained from the T6 treatment where 25% additional NPK was added with 100% STB in both the year. These yields weretatistically similar with that produced by all other fertilizer treatments except the native fertility treatment. Highest rice equivalent yield (REY) of 12.63 t ha-1 was obtained from T6 treatment whereas lowest REY of 5.93 t ha-1 was obtained from control.
 Bangladesh Agron. J. 2019, 22(1): 71-78

Increasing Cropping Intensity and Crop Productivity of Four Crops Based Mustard-Boro-T. Aus-T. Aman Cropping Pattern

“…The native nutrient treatment produced the lowest mustard seed yield (0.91 and 0.96)t ha -1 in Jashore during the year of 2017-18 and 2018-19. Alike trend of increased yield in mustard due to added fertilizers in 3 or 4 cropping patterns was also reported by Barman et al (2019) and Saha et al (2016). Dobermann et al (2013) opined that site-specific plant nutrient management (STB in our study) can increase yield as well as nutrient use efficiency of crop rotation.…”

“…From the results of two years research on four crop based cropping pattern, it was observed that the highest REY (3.34 t ha -1 ) was recorded from T 6 (25% extra NPK over 100% STB dose) and lowest from T 8 . REY of mustard was 46% higher than 100% STB dose when 25% more NPK was added to it Barman et al (2020). also documented higher rice equivalent yield of mustard from 25% NPK+ 100% STB dose Mondal et al (2015).…”

“…During the experimental years of 2018 and 2019, adding 25% NPK over 100% STB provided 44% and 50% higher yield, respectively than 75% of STB dose which was about 68% and 77% higher, respectively compared to native fertility. Barman et al (2020) also reported 64% higher yield from 25% NPK+100% STB dose than no fertilizer. An increase of N, P and K fertilizer doses from STB recommended doses significantly increased yield and yield contributing parameters of rice (Hasan et al, 2017).…”

Cropping system-based fertilizer strategies for crop productivity and soil health under minimum tillage in grey terrace soil

“…However, there is a lack of research on the effects of these management practices in the context of four crop based cropping systems. While there have been studies on chemical fertilizer management for four crop-based systems [ 25 , 26 ], as well as comparisons study of system productivity between four crop and three crop cropping systems [ 20 , 27 ]. Therefore, the present study aims to examine the influence of tillage and organic-based nutrient management on cropping system productivity, as well as the effects of these treatments on soil health improvement.…”

Modification of Nutrient Requirements for a Four Crop-Based Cropping System to Increase System Productivity, Maintain Soil Fertility, and Achieve Sustainable Intensification

“…This newly adopted cropping system may increase farm income while creating job opportunities, alleviating poverty, and ultimately creating positive changes in the farmers' livelihoods. Reports have shown that the four crop-based cropping systems increased the rice equivalent yield up to 20-46% and the gross margin up to 30-41% over the existing lentil-jute-aman rice and boro-fallow-aman rice systems [4,5]. However, to acquire optimal performances in terms of yield, economic return, and soil health under the four crop-based cropping systems, the optimal fertilizer rate should be determined [6].…”