Dyke cropping: the successful case of Md. Zillur Rahman


August 28th, 2014

Cultivation of crops is almost absent in the South Western coastal region of Bangladesh, where shrimp farming has been dominant since the mid-eighties. Salinity intrusion into agricultural land is increasing because of sea level rise due to climate change. Thus the practice of agriculture has been almost stopped in the coastal areas except for shrimp farming.

The introduction of cropping on the dyke of shrimp gher has been an important innovation by Practical Action, although it was practiced a while back. However, dyke cropping was neither very common, nor systematic. Practical Action, Bangladesh, under its Climate Change Programme in the South Western Coastal District Satkhira demonstrated some livelihoods technologies including Dyke Cropping following an improved method.

Mr. Zillur Rahman (35) of Kalikapur village, a small holder demonstrated vegetable cultivation on the dyke of his shrimp farm. He had prior experiences of dyke cropping. In October-December 2011, he did ‘dyke cropping’ with Practical Action’s technical support on 4 dykes of different lengths (25-30 to 130 feet). The dyke’s width was 3 feet and height above the flood water level.

dyke cultivationRahman cultivated vegetables on the dykes in winter (October-December 2011) and during the monsoon (May-September 2012). The vegetables he grew included pumpkin, water gourd, chalkumra, cumcumber and carrala in the winter season and pumpkin, water gourd, chalkumra, cumcumber, carrala along with jhinge, chichinga, dhundal, papaw, ladies fingers, brinjal and puishak in the monsoon. Monsoon cropping required no irrigation as there was sufficient rain, while, drip irrigation technology was used for winter cropping in the pits made on dykes. The size of pit differed for each vegetable (50x50x50 to 80x80x80 centimeter). Both organic and inorganic fertilizer in appropriate doses was used in the pits for vegetable cultivation. The dyke cropping helps to maximise land use, promoting food security and reducing dependency on shrimp farming.

Technological differences were significant between the earlier and later project. Better dyke design was introduced with adequate height and width than earlier. In the improved system, organic fertilizer use was predominant, however, in-organic fertilizer use was also used  in appropriate doses; machan on dyke prepared with branches of trees earlier, but, bamboo/wooden pole and net were used in the improved system. The cost of machan more than doubled and survived 4 years instead of 1 year for the conventional one.  

Rahman harvested a total of 182kgs of vegetables in winter and sold at an average market price Tk.15/kg. He harvested a good amount of vegetables (181 Kgs.) by mid-September 2012 and sold at a market price of Tk.16/kg in the monsoon. He expected further 111kgs (approx) up to December 2012 and could sell thse at Tk.15/kg.

In the improved system, he harvested 2.5 times more compared to earlier practice. The dyke cropping could suitably be expanded and replicated, where vegetable production is almost absent or very poor due to salinity increase, which, could benefit the shrimp farmers by bringing extra income along with household consumption.

One response to “Dyke cropping: the successful case of Md. Zillur Rahman”

  1. Saiduzzaman Says:

    Sir, can i get more information about it?

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