北方水稻
北方水稻
북방수도
NORTH RICE
2012年
1期
34-37,48
,共5页
前氮后移%有效穗数%穗粒数%千粒重%增产
前氮後移%有效穗數%穗粒數%韆粒重%增產
전담후이%유효수수%수립수%천립중%증산
Postponing nitrogen fertilisers%Effective panicles%Grains per panicle%1000 grains weight%Yield increasing
经过1 a三点的试验,可初步看出,返青、分蘖肥的多少对单位面积有效穗数并不起决定性作用,前期施入过多的氮肥,反而造成稻株发育不健壮,无效分蘖多,过早封垄,群体过分繁茂,通风透光性能差,容易发生病、虫危害,低部叶片过早枯死,中后期易脱肥,容易发生早衰,容易造成倒伏等弊端。同时可以看出,施用接力肥和保花肥对水稻每穗粒数及千粒重的增加有明显的作用。从产量上来看,施用接力肥和保花肥的处理(前氮后移)比前重型施肥增产明显,约增产10%~45%。
經過1 a三點的試驗,可初步看齣,返青、分蘗肥的多少對單位麵積有效穗數併不起決定性作用,前期施入過多的氮肥,反而造成稻株髮育不健壯,無效分蘗多,過早封壟,群體過分繁茂,通風透光性能差,容易髮生病、蟲危害,低部葉片過早枯死,中後期易脫肥,容易髮生早衰,容易造成倒伏等弊耑。同時可以看齣,施用接力肥和保花肥對水稻每穗粒數及韆粒重的增加有明顯的作用。從產量上來看,施用接力肥和保花肥的處理(前氮後移)比前重型施肥增產明顯,約增產10%~45%。
경과1 a삼점적시험,가초보간출,반청、분얼비적다소대단위면적유효수수병불기결정성작용,전기시입과다적담비,반이조성도주발육불건장,무효분얼다,과조봉롱,군체과분번무,통풍투광성능차,용역발생병、충위해,저부협편과조고사,중후기역탈비,용역발생조쇠,용역조성도복등폐단。동시가이간출,시용접력비화보화비대수도매수립수급천립중적증가유명현적작용。종산량상래간,시용접력비화보화비적처리(전담후이)비전중형시비증산명현,약증산10%~45%。
The test indicated that green return fertiliser and tillering fertilizer can not play a decisive role on effective panicles per unit area, excessive nitrogen fertilizer can cause dysplastic plants, excess ineffective tillers, early sealing ridging, excessive exuberance, low permeability, plant diseases and insect pests, early dead bottom leaves, early senescence and lodging et al. then, the relay fertilisers and flower conserving fertilizer can increase grains per panicle and 1000 grains weight obviously, it can increase the yield by 10%-45%.