Intercropping of Azolla biofertilizer with rice at different crop geometry.
Year: 1990
Type: article
Abstract: lntercropping of Azolla with rice transplanted in rectangular (10 × 40 cm) spacing produced greater biomass and accumulated more nitrogen in the Azolla than its intercropping in square (20 × 20 cm) spacing. The differences in biomass and N accumulations were greater in the second crop of Azolla at 50 days after transplanting (DAT) of the rice crop than in the first crop of Azolla at 30 DAT. The E-W direction of rice rows in the rectangular spacing produced greater biomass and fixed more nitrogen in the Azolla than with rice rows in the N-S direction. Growing and incorporating Azolla once before transplanting and twice after transplanting produced the highest grain and straw yields, greatest number and weight of panicles, and N uptake by rice. The application of Azolla also significantly improved the soil fertility by increasing total N, organic C and available P of the soil.
Source: Tropical Agriculture
Authors: A. L. Singh, P. K. Singh
Institution: Central Rice Research Institute
Language: English
Subfield: Agronomy and Crop Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W1583058969