Abstract
Acid soil is a hindrance to agricultural productivity and a threat to food and environmental security. Research was carried out to assess the impact of lime and organic manure (OM) amendments on yield and nutrient uptake by using the T. Aman-Maize-Fallow cropping pattern in acid soils. The experiment was set up in an RCBD design and used nine treatments and three replications. The treatments, comprising of various doses of lime, OM (cow dung and poultry manure), and a lime-OM combination, were applied to the first crop, T. Aman (Binadhan 7), and in the next crop, maize (BARI Hybrid Maize-9), the residual impacts of the treatments were assessed. Results demonstrate that the highest grain yield, 4.84 t ha−1 (13.61% increase over control) was recorded for T. Aman and 8.38 t ha−1 (58.71% increase over control) for maize, was achieved when dololime was applied in combination with poultry manure. The total rice equivalent yield increase over the control ranged from 20.5% to 66.1%. The application of lime with cow dung or poultry manure considerably enhanced N, P, K, and S content and uptake in both crops, compared to the control. Thus, it may be inferred that using dololime in association with poultry manure can increase crop productivity in acid soils.
Highlights
IntroductionRice (Oryza sativa) is the world’s second most frequently cultivated cereal grain, feeding 164 million Bangladeshis and 60 per cent of the world’s population [1,2,3]
Our results demonstrated that the application of lime and organic manure significantly improved soil properties and nutrient availability which was consistent with Islam et al [38]
The results of the present study revealed that the application of lime and organic manure alone or in combination to acidic piedmont soils significantly boosted the system productivity, nutrient content and uptake of the T
Summary
Rice (Oryza sativa) is the world’s second most frequently cultivated cereal grain, feeding 164 million Bangladeshis and 60 per cent of the world’s population [1,2,3]. Bangladesh’s population is anticipated to reach 186 million by 2030, indicating that the world’s population is growing at a promising rate. For ensuring food security and food safety, food demand for the increasing population must be met up. Maize (Zea mays) is another cereal crop that is grown in a range of agroecological environments all over the world. By 2020, maize production is expected to outnumber wheat and rice in developing countries [4].
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