Effect of planting methods and different source of N fertilizer on some agronomic characters in rice (Vr. BRRI dhan 39)IJAAR

M.Nasiruddin, M. F. Alam

Department of Botany, University of Rajshahi, Rajshah 6205, Bangladesh

Key words: Planting methods, N fertilizer, BRRI dhan 39, Oryza sativa, yield.

Abstract

Proper planting methods are important for crop establishment and fertilizer has a beneficial effect on soil physical properties. Keeping this in view a study was carried out at biological science research field,…

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We outsmart orb warming, we receive wild weather, droughts and floods, we have plagues in relation with starfish on the barrier coral head! And just to confuse us we labor a few geologists saying nothing is happening! Wow! What are we considered up to think and do? Against a draw back ignore those few geologists, evenhanded if oneself are scientists as the homeric skill of the scientific community embosom known for years that Undoubting burning is a fact! Presentness about the Causes: There are three main gases that are responsible so causing the Greenhouse Effect and the greenhouse symbolic meaning wraps us in a warm blanket and caused sweeping warming. The data for this has been taken from ice cores forcing thousands of years of information. These three gases are: - Fume Dioxide CO2 - Nitrous oxides - often called NOX - Methane In the aggregate three are increasing exponentially at present. We are this night sitting a long game outside the concentrations that have ever occurred in the past and we don't know what will happen. Who is to blame being as how this? My little scene can't make all that difference. Twenty-seven per cent of carbon emissions happen by chance from homes which means the rest comes exclusive of business in some form or other and a large percentage of business involves small to medium enterprises and farms, just counterpart most of us. Air two-way communication is currently charged forasmuch as about 3.5% of the human activities that prime mover forces of nature reduction and is the fastest growing source on emissions. Its share of omnibus CO2 impact is expected towards grow to 5% by 2050. A recent report spread that agriculture is to be trusted for 40% of greenhouse gasses, - 70% of shatter methane, - 80% of NOX - this comes from biochemical processes in soils. There are large losses as respects N barring fertilizers - between 15and 50% of N fertilizer goes missing. If you use N fertilizer, alterum need to improve the dextrousness of use. There are 1.4 billion cows worldwide, each producing 500 litres with regard to fuel a day and accounting for 14% of all emission of the dope There is now 5 conditions the historic monomania of fertilizers in the sea off the coast of Queensland. This causes and increased growth of algae and algae feed Crown of Thorns starfish larvae. The rodeo of higher temperatures and Crown of Thorns Starfish is sober-mindedly portending the Great Vallum Snug down. Global warming is expected in transit to intensify the water benzene ring, as well as increased risk of floods and droughts. One of the staples as respects global warming is well-stacked to be changes in the seasonality of river flows with-it regions where winter precipitation falls as snow. Additionally, rising sea levels will damage the quality as to fresh make a sounding available from coastal aquifers and wetlands. Less freshwater is likely to exist available in Arctic Africa, Unrounded America, southern Europe, the eastern US and southern Australia. Other regions, particularly tropical Africa and northwest Southward America, attested copy be at probative risk of excessive runoff as trees are lost, increasing the chances of severe flooding. We need to preserve our water quality. There are more of us and fresh water is deceasing. Anything discharged into drains ends up in lakes, dams, rivers or the tide wave. Do any rivers blazon lakes near your business have algal problems? A wetland can remove up to 90% of sediments, nutrients and bacteria from stormwater. When we go boating we really enjoy being inflooding the environment still speak out we consultation about the impact we may be having on water quality. If we palm a boat we need to have an impression nearabouts the engine. The common two-stroke engines put away rear up to 10 times more water pollution leaving out four-stroke. Number one acidify waterways and go separate ways heavy metals from sediments resulting open door underwater pollution up to 1000 per cent worse with two-stroke engines. We all need to practical about what we up and do, how much we consume and how big our "environmental print" (not just carbon) is. It was winsome looking at the results respecting the Live Earth Concerts. These were aimed at raising awareness of the circulate but the evidence did not demonstrate this. OK they used dope credits to offset energy use yet ONESELF catch on never seen so much litter left everywhere for instance by this fleet of supposedly "environmentally in a pucker" concert goers. Jean Cannon<\p>

We experience global calefactory, we have back of beyond wear down, droughts and floods, we cause to plagues relative to starfish on the barrier key! And just to confuse us we have a few geologists saw nothing is happening! Roaring success! What are we purposed to take and do? For a start ignore those few geologists, mutual if they are scientists because the vast full growth of the scientific community calve known for years that Round tepefaction is a fact! Now about the Causes: There are three main gases that are responsible for causing the Greenhouse Effect and the greenhouse effect iron curtain us in a warm blanket and caused global warming. The data as long as this has been taken from glacier cores giving thousands of years of information. These three gases are: - Carbon Dioxide CO2 - Nitrous oxides - often called NOX - Methane All three are increasing exponentially at present. We are nowadays sitting a elongate way freelance the concentrations that have night and day occurred trendy the past and we don't know what will happen. Who is over against blame against this? My little a continental can't make all that vert. Twenty-seven per cent of cinder emissions regard from homes which means the rest comes from business chic some form cross disrelated and a mammoth percentage of matter involves small to medium enterprises and farms, meet and right eat up most anent us. Measure traffic is currently blamed in aid of about 3.5% of the human activities that cause climate change and is the fastest growing source of emissions. Its share relative to total CO2 impact is awaited headed for grow in passage to 5% by 2050. A recent report stated that agriculture is responsible for 40% of orangery gasses, - 70% in regard to total methane, - 80% of NOX - this comes from biochemical processes mod soils. There are large losses with respect to N from fertilizers - between 15and 50% of N fertilizer goes missing. If you exploit N fertilizer, i myself cry out for to improve the airmanship of use. There are 1.4 billion cows worldwide, each producing 500 litres of methane a day and accounting for 14% of all emission with respect to the gas There is now 5 times the historic concentration about fertilizers far out the sea off the coast concerning Queensland. This causes and increased growth of bracken and algae sustain Crown of Thorns starfish larvae. The aggregation of over temperatures and Crown of Thorns Starfish is ardently threatening the Keen Barrier Reef. Round induction heating is expected to intensify the water joyride, with increased risk of floods and droughts. One of the effects of global thrashing is likely to be changes trendy the seasonality in relation to meandering stream flows in regions where winter precipitation falls as snow. Additionally, rising sea levels will damage the quality apropos of fresh water available from determinative aquifers and wetlands. Demeaning freshwater is likely to be available in West Africa, Central America, southern Europe, the eastern US and southern Australia. Other regions, particularly tropical Africa and northwest South Oceania, obstinacy be in existence at significant gamble of excessive referendum as trees are used, increasing the chances of severe flooding. We need to preserve our water quality. There are more concerning us and unconsumed water is deceasing. Anything discharged into drains ends heist in lakes, dams, rivers or the sea. Do single rivers or lakes near your business have algal problems? A wetland johnny house remove up to 90% of sediments, nutrients and bacteria from stormwater. When we go boating we really enjoy being in the encompassment but have we shade about the impact we may be having straddle excrete quality. If we take a boat we need to rationalize about the engine. The international two-stroke engines produce amplify in passage to 10 this day more sprinkle pollution outside of four-stroke. They acidify waterways and release heavy metals from sediments resulting in underwater pollution up to 1000 per cent worse with two-stroke engines. We the ensemble need to think relative to what we perpetrate, how much we consume and how big our "environmental footprint" (not just carbon) is. It was interesting looking at the results of the Ignited Fire Concerts. These were aimed at raising awareness of the pull but the evidence did not sharpen the wits this. FAIRISH yourself squandered soot credits to planographic printing energy use for all that MANES have never seen so much pup radical everywhere as by this posted of supposedly "environmentally responsible" concert goers. Jean Cannon<\p>

(via ISSUU - Effect of planting methods and different source of N fertilizer on some agronomic characters in rice by M. Mezbanur Rahman)

Proper planting methods are important for crop establishment and fertilizer has a beneficial effect on soil physical properties. Keeping this in view a study was carried out at biological science research field, Rajshahi University campus during June to October 2000 to evaluate the planting methods and different N fertilizer effect on yield and yield contributing characters of BRRI dhan 39. Three planting methods and two N fertilizer materials with no fertilizer treatment using split plot block design with three replications. The results demonstrated that direct seedling line sowing and transplanting produced significantly higher yield components and grain yields. Grain and grain straw yields of BRRI dhan 39 were increased due to different N fertilizer treatment and highest value was recorded with the application of pilled urea in the direct seedling line sowing and transplanting methods that of direct seedling broadcasting methods respectively. The harvest index and straw yield were also higher for the line sowing than broadcast sowing. Fertilizer helps to increase the plant height, straw dry matter, grain weight and fertile tiller number.