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为了摸索杂交水稻育秧工厂化、栽培机械化的途径和方法,我们于1978年在吴县越溪公社一大队,与有关单位协作,进行了杂交水稻温室有土育秧和小苗高产栽培试验,对杂交水稻室育小苗生育特点和高产技术进行了探讨。现将主要结果整理如下供参考。一、室育小苗的生育特点我们用汕优2号室育小苗,栽插了40亩大田,平均单产1,265.2斤,高产田块亩产达1,381.8斤。其产量结构的特点是:穗型大,空秕率低,千粒重高,典型田块每穗164.5粒,空秕率9.1％,千粒重28.13克。与露地大苗相比,每穗实粒增加20.7—23.1粒,空秕率降低7.4—8.3％,千粒重增加0.5—1克。室育小苗之所以显示出产量优势,是由其本身的生育特点所决定的。 (一)室育小苗根系发育好。在人为条件下,用这种类似旱育秧方法育出的小苗,育秧期间最显著的
In order to explore hybrid rice seedling cultivation, cultivation mechanization ways and methods, we in 1978 in Wu County Yuexi commune brigade, in collaboration with the relevant units, hybrid rice greenhouse soil and seedlings have high-yielding cultivation experiments on hybrid rice room The characteristics of breeding seedlings and high yielding techniques were discussed. The main results are summarized below for reference. First, the reproductive characteristics of nursery nursery We use the No. 2 Shanyou nursery nursery, planting 40 acres of field, with an average yield of 1,265.2 pounds, high-yield plots yield 1,381.8 kg. Its yield structure is characterized by: large panicle, low rate of empty plover, 1000-grain weight, typical field 164.5 per spike, empty rate of 9.1%, grain weight 28.13 grams. Compared with the open-field seedlings, grain per panicle increased by 20.7-23.1 tablets, emptying rate decreased 7.4-8.3%, 1000-grain weight increased 0.5-1 grams. Room breeding seedlings show the yield advantage, is determined by its own reproductive characteristics. (A) room nursery root development. Under artificial conditions, the seedlings raised by this similar method of dry nursery, the most significant