水稻混合稀植栽培技术的研究Ⅱ.水稻混合稀植高产栽培技术

Study on Mix-space-transplanting Cultivation of Rice Ⅱ The High Yield Technology of Mix_space_transplanting Cultivation of Rice

:通过多年的试验研究 ,总结了水稻混合稀植的高产栽培技术 ,提出了抛秧育秧或稀播旱育秧 (播种量 150g/m2 ) ;5月 2 5日插秧 ,每穴 2～ 3苗。采用 3行组 ( 50 0 +30 0 +30 0 )cm×( 2 0 0 ,13 3,2 0 0 )cm和 ( 4 0 0 +30 +30 )cm× 2 0 0cm错位插秧 ( 15 0～ 15 8穴 /m2 ) ;4行组栽培方式选用 ( 50 0 +30 0 +30 0 +30 0 )cm× ( 2 6 7,13 3,13 3,2 6 7)cm和 ( 50 0 +30 0 +30 0 +30 0 )cm×2 0 0cm错位插秧 ( 14 3～ 15 5穴 /m2 )的插秧方式。分期施用氮肥 ,氮、磷、钾 ( 2∶1∶1)配方施肥 。

This article sumarized the high yield cultivated tech nology of mix_space_transplanting of rice by several years experiment.And it gave the method of space dry nursery seedling,seed quantity 150 g/m 2,and abandon disc raise seedling,transplanting on 25,May,2～3 seedlings of each plant spacing.Transplanting model:if it used the three rows group,may select (50.0+30.0+30.0)cm×(20.0,13.3,20.0)cm or (40.0+30.0+30.0)cm×20.0 cm intersect transplanting(15.0～15.8 hole/m 2),if selected four rows group,may use (50.0+30.0+30.0+30.0)cm×(26.7,13.3,13.3,26.7)cm and (50.0+30.0+30.0+30.0)cm×20.0 cm intersect transplanting(14.3～15.5 hole/m 2).Split application used nitrogen and formulation used nitrogen,phosphorus and potassium with the proportion of 2∶1∶1.Shallow_moist wetting-dry irrigated style was used and integrated and prophylactic control pest,disease and weeds.