单季晚稻太湖粳3号高产栽培途径的研究

STUDIES ON CULTUKAL APPROACHES TO HIGH-YIELDING OF TAIHUJING NO.3

对单季晚稻太湖粳３号高产栽培途径进行了分析与研究。结果表明：（１）足够的颖花量是取得高产的基础，单产超过１１２５０ｋｇ／ｈｍ￣２的总颖花量在３１００万以上；（２）获取适宜穗数３６０万／ｈｍ￣２左右，主攻大穗至１３０粒以上是太湖粳３号高产栽培的重要途径；（３）减少１次枝梗退化数而增加其现存数是该品种大穗形成的有效途径；（４）扩大行距和减少基本苗、促保两次穗肥。

In 1995,the high-yielding cultural approaches of Taihujing No.3 was generalized and studied by high-yield-ing cultural demonstration with additional experiments. The results indicated that:(1) Getting enough the number ofspikelets was the basis of high-yielding, the number of spikelets for 11 250kg grains per hm￣2 shoued be 465 million.(2) Itwas the important way for high-yielding of Taihujing No. 3 to maintaining appropriate panicles of 3. 6 million per hm￣2 andobtaining large ear of 130 per panicle.(3)Decreasing the retrograded first branch was the effective approach to obtain largepanticle,(4) It was the effective measures to increase yield to enlarging row spacing and decreasing the basic seedlings,double-using ear-fertilizer, drying paddy field early appropriately.