粤优938在缅甸的高效栽培技术研究

目的]研究粤优938在缅甸的高效栽培技术。方法]对粤优938进行不同密度的栽插试验与肥料用量和运筹试验。结果]粤优938在缅甸生育期明显缩短,为保证产量,以每穴栽插4苗带蘖壮秧,栽插密度控制在20万穴/hm~2为宜;采用复合肥80%为基肥、20%为分蘖肥+尿素80%为分蘖肥、20%为促花肥的肥料运筹方法,基肥于插秧前施用,分蘖肥于插秧后4、10 d分2次均匀施用,促花肥在叶龄余数3左右时施用为好。结论]根据缅甸稻谷收购价格低而肥料成本高的实际,在缅甸进行粤优938高效栽培时,肥料施用量以复合肥+尿素商品用量300 kg+450 kg/hm~2为好。

The Efficient Cultivation Technology of Yueyou 938 in Myanmar

Objective]To study efficient cultivation technology of Yueyou 938 in Myanmar. Method] Different planting density test, fertilizer rate and operation test of Yueyou 938 were carried out. Result]The growing period of Yueyou 938 was obviously shortened in Myanmar. It was advisable to plant four seedlings in each hole and planting density could be controlled no more than 200 thousand holes in one hectare. A good method of fertilization was as followed:for compound fertilizer, 80％ as base fertilizer and 20％ as tillering fertilizer;for urea, 80％ as tillering fertilizer and 20％ as flowering fertilizer. And the base fertilizer should be applied before transplanting rice seedlings, the tillering fertilizer should be uniformly applied twice when four days and ten days after planting, and the flowering fertilizer should be applied when the leaf age re-mainder was 3. Conclusion] Based on the fact that the price of rice is low and the cost of fertilizer is high in Myanmar, the fertilizer usage of 300 kg compound fertilizer and 450 kg urea in one hectare is the best treatment when Yueyou 938 was efficiently cultivated in Myanmar.