Abstract
Laboratory experiment was conducted to evaluate the effect of in corporation of rice straw on the germination of different rice cultivars viz: ADT 36,ADT 38,ADT49,CO43.Further the allelopathic impact of crop residues on weed count and weed biomass was also registered. Different rates of incorporation was tried and higher the rate of incorporation, higher the inhibitions on rice and weed observations. Reduction in the performance of rice seed germination and growth parameters was observed with increased rice straw incorporation in all the four rice cultivars tried. Perhaps the rice straw incorporation had an influence on the biomass of rice cultivars too. Supporting research evidences also reveals that allelopathic effect of rice straw on rice and weed performance can stand as a remarkable achievement for recycling rice straw in rice producing countries.
Highlights
Achieving food security has become a tremendous task to mankind in order to satisfy the dietary requirements of the exploding population
The present system of rice production requires the use of agrochemicals such as fertilizers, pesticides, herbicides often in heavy doses that are harmful to the environment as they spill into the water bodies and worse get deposited in bodies of the human beings and animals in toxic proportions
The effect of rice straw extracts on rice seed germination is shown in Table: 1. The germination percentage, seedling root and shoot growth was more affected by the extracts of incorporation
Summary
Achieving food security has become a tremendous task to mankind in order to satisfy the dietary requirements of the exploding population. The present work is aimed to find out the impact of rice straw incorporation on the crop and weed seeds germination and plant growth biometrics in order to reduce the use of herbicides.
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