No abstract

Intercropping provides enough scope to include two or more crops simultaneously in same piece of land targeting higher productivity from unit area. Maize, a cereal crop of versatile use, as planted in wide rows offers the opportunity for adoption of intercropping. The intercropping system with maize and legume is beneficial in multifaceted aspects. The success of maize-legume intercropping system largely depends on choice of crops and their maturity, density, and time of planting. Advantage of maize-legume combination of intercropping system is pronounced in the form of higher yield and greater utilization of available resources, benefits in weeds, pests and disease management, fixation of biological nitrogen by legumes and transfer of N to associated maize, insurance against crop failure to small holders, and control of erosion by covering a large extent of ground area. Though maize-legume intercropping system exhibits limitations like less scope of farm mechanization, dependence on more human workforce, and chance of achieving less productivity from maize, the system implies more advantages for small holders in developing countries where human workforce is not a constraint. The chapter has focused on beneficial impacts of maize-legume intercropping system.

Increasing productivity of maize while decreasing production costs and maintaining soil health are emerging challenges for the rice–maize system in South Asia. A range of integrated nutrient and weed management practices were tested in winter maize for their effects on yield, profitability, and soil health. The nutrient management treatments were a partial substitution of nitrogen with bulky (Farmyard manure; vermicompost) and concentrated organic manures (Brassicaceous seed meal, BSM; neem cake), whereas weed management practices compared chemical controls only versus an integrated approach. The N supplementation through BSM diminished the weed growth by reducing weed N uptake, and enhanced the maize crop uptake of nutrients. As compared to the sole chemical approach, atrazine-applied pre-emergence followed by hoeing reduced weed density by 58 and 67% in years 1 and 2, respectively. The N supplementation through BSM resulted in the maximum yield of maize grain (6.13 and 6.50 t ha−1 in year 1 and year 2, respectively) and this treatment increased yield in year 2 compared to N application through synthetic fertilizer. Hoeing in conjugation with herbicide enhanced the maize grain yield by 9% over herbicide alone. The maximum net return and economic efficiency were achieved with the application of BSM for N supplementation, together with the integrated weed management practice.

No abstract

No abstract

No abstract

No abstract

The red and lateritic zone (RLZ) of Eastern India comprises of south-west part of West Bengal, a part of Odisha and Jahrkhand grimly a low position in respect of yield levels compared to many other parts of India. Soil of this area is poor in inherent fertility status with low to medium available nutrients of phosphorus, potassium and calcium. Most of the lands are located on higher elevation and erosion hazards and gully formation are very common. Monsoon rainfall is erratic or unevenly distributed in this region and, thus partial or even total failure of rainfed crops is very common. The major parts of this zone are rainfed, rice-fallow based mono-cropped and cropping intensity of the region is between 125-130%. This region of India is home of millions of resource-challenged small and marginal farmers having poor food and nutritional vis-à-vis economic security. To alleviate this grim situation of drought prone RLZ of Eastern India, intensification of Rice-fallow by inclusion of suitable crops was one the major challenges due to several bio-physical constraints. In this context, being the climate resilient and drought tolerant crops, millets may be the best choice for the rice-based crop sequence, any fallow and marginal land, agro-forestry system or even for popularizing any millet-based crop sequence for escalating the level of livelihood of the small and marginal farmers of the dry tract of RLZ. The objective is to develop a model using implementing millet-based cropping system to address food and nutritional security for the regions like RLZ of eastern India. Available research data on millet production feasibility in the region was used. A multidisciplinary approach was used for value-addition and small-scale agri-industry. In this present paper, we conceptualized the current status, prospects and research strategies for augmenting the millet production system to improve the food and nutritional security across drought prone and red laterite region of Eastern India. We believe that same model can be applied elsewhere in the world with agro-climatic conditions like RLZ.