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Patel, Himanshu
- Phosphorus Acqisition by Rice
Authors
1 Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), IN
2 Indian Institute of Rice Research, Hyderabad (Telangana), IN
Source
Asian Journal of Bio Science, Vol 11, No 1 (2016), Pagination: 206-211Abstract
Phosphorus (P) deficiency is one of the of the most important nutritional constraints to rice growth across the globe. The desire to improve the P acquisition efficiency of rice arises because of very low use efficiency of fertilizers and also are not always adequate to overcome the crop production constraints. Fertilizers are a costly input, such that their use limits the profitability of rice farming for high-input or low-input systems and the use of fertilizers for these two rice nutrients is inefficient. Rice-growing environments can be categorized into two very broad categories: ‘upland’ and ‘lowland’. For the purposes of this review, we have explored whether there are other ways by which P acquisition by rice can be emphasized. Also, recent interests in foliar nutrition in rice, we must explore some of the other no traditional ways by which external application of P have been utilized. In this brief review paper, we have also tried to review some of the genotypes which are very efficient in low P tolerance.
Keywords
Phosphorus Acqisition, Rice.- Varietal Performance of Rice for their Yield and its Attributes in Farmers Field of Durg
Authors
1 Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.), IN
Source
Asian Journal of Bio Science, Vol 11, No 1 (2016), Pagination: 241-243Abstract
Exploratory studies were undertaken from the farmers field of village Hanoda, Durg district, Chattisgarh to evaluate the performance of different prevailing varieties of rice and to find out suitable variety of rice for lowland rice cultivation under agro climatic conditions. The growth and yield attributes of rice varieties varied significantly. The plant height decreased gradually in the following manner, Mahamaya>MTU 1010>Mahsuri >HMT>Danteshwari variety of rice grown. The maximum plant height (87.00 cm) was recorded with Mahamaya variety which was at par with MTU 1010 and Mahsuri varieteis (86.87 cm and 84.25 cm) and was significantly higher than the HMT (82.37 cm) and Danteshwari (79.75 cm) varieties of rice grown. The number of tillers per plant increased gradually from 249.63 tillers per sq.m in Mahamaya to 284.13 tillers per sq.m in HMT and then decreased in case of Danteshwari. The data on grain yield revealed that significantly higher grain yield (48.00 q/ha) was recorded with HMT variety of rice grown. The grain yields increased gradually from 41.77q/ha in Mahamaya to 48.00 q/ha in HMT and then decreased to 44.12 q/ha in Danteshwari variety of rice crop.