No abstract

Rice is the most important staple food crop of our country. Due to climatic condition and geographical situation our country is the most important rice growing country of the whole world. It is mostly grown during kharif season, but interestingly around 11.7 M ha of land remains fallow after kharif rice were harvested due to several limitations. Efficient utilization of these fallow land may increase the productivity and make the whole system sustainable. Soil condition and climatic situation clearly suggest that short duration crop can easily be fit in that situation. Pulse takes an important position in human’s daily life. It not only providing high quality protein but also benefit the cropping system in several ways. The resources present in the rice fallows clearly giving an opportunity to introduce different pulse crop there. It will surely be an excellent inclusion. If the location specific constraints are been managed efficiently then those unutilized lands can be efficiently converted into productive one. It will not only increase the production of the system but also strengthen the economic condition of the farmers, improve the soil condition and more over it will ensure nutritional security of the people of our country.

No abstract

A field experiment was undertaken at Research Farm, Department of Agronomy, OUAT Bhubaneswar to study the response of rice (Oryza sativa L.) varieties to LCC based nitrogen application under Real Time Nitrogen Management (RTNM) during summer 2015 in split plot design with three replications. Four varieties (V1- Lalat, V2- Naveen, V3- Hiranmayee and V4- Gobinda) were in main plot and sub plots were assigned with six N- management practices (N1- Control, N2- RDN@ 80 kg N ha-1 while in treatment N3 to N6, 20 kg N was applied in each split at LCC level 3 ( N3), LCC level 4( N4), LCC level 5(N5) and LCC level 6 (N6). A uniform dose of phosphorous and potassium @ 40 kg ha-1 each along with well decomposed FYM @ 5t ha-1 were applied to all the plots as basal. Nitrogen uptake was maximum (88.59 kg ha-1) in variety Naveen, whereas, the variety Gobinda had maximum agronomic efficiency (24.12 kg kg-1), recovery efficiency (37.23 kg kg-1), physiological efficiency (53.33 kg kg-1) and partial factor productivity (44.58 kg kg-1).Application of RDF resulted in maximum uptake of nitrogen (94.20 kg ha-1) and registered the highest agronomic efficiency (32.86 kg kg-1), recovery efficiency (55.40 kg ka-1)and partial factor productivity (65.61 kg ka-1). The highest physiological efficiency of 63.93 kg ha-1 and minimum N loss of 29.35 kg ha-1 was recorded forLCC 4 (N4) threshold value.

No abstract