ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Studies on the uptake of nitrogen and phosphorus were carried out in an early paddy variety N22 on a medium loam soil at Govt. Research Farm, Kanpur. Plant samples above soil surface were collected and analysed for the above mentioned nutrients. The salient results emerging out of these investigations are as under: 1. Only one period of nitrogen and phosphorus efficiency at tillering stage was observed. 2. Maximum uptake of nitrogen and phosphorus was noted in the treatment where nitrogen at 66 kg combined with phosphates at 44 kg per hectare was applied. 3. The rate of uptake of nitrogen from seedling to tillering was about 45 per cent, from jointing to ear initiation stage 35 and 20 per cent upto maturity, whereas in case of phosphorus about 70 per cent was taken upto panicle emergence. 4. Highest recovery of nitrogen (64.8 per cent) was noted where nitrogen at 66 kg with 44 kg P2O5; per ha was applied while best recovery of phosphorus was observed in treatment where 22 kg P2O5 combined with 66 kg N per ha was applied. 5. Best rentability of nitrogen was noticed in the treatment N44 P22 whereas N66 P22 treatment showed best rentability of phosphorus.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01373590
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