Abstract
In Tamilnadu, Ariyalur district contributes a major share of cluster onion production. An ideotype popular among the growers of this locality is preferred by consumers of entire state for its size, storability and taste. Hence the present investigation was carried out the in a farmer’s field at Vennallur located in Ariyalur District during 2017. The experiment was laid out with seven treatments in randomized block design. Each treatment was replicated thrice. The treatments included three kinds of practices adopted by the farmers of the tract and four others where bulky organic manures (Vermicompost, Poultry manure) and concentrated organic manures (Neem cake and Groundnut cake) were substituted on ‘N’ equivalent basis, along with biofertilizers (Azospirillum and Phosphobacteria) and foliar spray of Panchakavya (3%). All the four treatments with organic inputs (T4 to T7) gave better results, when compared to farmer’s practice (T1 and T2). Though T3 was the best, incorporation of Poultry manure+Neem cake (T6) and Poultry manure+Groundnut cake (T7) along with Biofertilizer+Panchakavya 3 % improved the yield significantly in order.
Highlights
INTRODUCTIONVar. aggregatum, 2n = 2x =16, family: Alliaceae) is one among the important vegetable crops cultivated in India
The organic manures–Vermicompost, Neem cake and Groundnut cake were applied in quantities calculated on ‘N’ equivalent basis
Organic manure in the improvement of soil fertility and productivity, acknowledged for generations would have helped in the plant metabolic activity through the supply of important nutrients besides micronutrients in promoting the vigorous growth
Summary
Var. aggregatum, 2n = 2x =16, family: Alliaceae) is one among the important vegetable crops cultivated in India. India ranks second in the world after China by contributing 12.30 per cent to the world production. It is semi–perishable in nature and can be transported to a long distance without much injury. India exports onion to countries like Malaysia, Russia, Kuwait, SriLanka, Singapore, Germany, Japan, Iran, Myanmar and U. There are many issues related to the cultivation and production of onion in India, like nutritional disorders. Produced crops possess better biochemical and physical quality in onion without much compromise on yield statistics [4]. The present study was designed to investigate the effect of organic manures on the growth and yield of aggregate onion
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