伊川县地处豫西浅山丘陵区,常年水稻种植面积5万亩左右。其中麦茬稻面积占85%左右,而单产一直徘徊在300公斤左右。自1988年引进豫粳四号以来,经大面积试验示范,平均亩产比68—11亩增产130—150公斤,出现了大量麦茬稻亩产超500公斤地块,最高亩产达602公斤,使我县水稻平均亩产从300公斤提高到502公斤。在栽培技术上, Yichuan County is located in shallow hills in western Henan Province, perennial rice planting area of ​​about 50000 acres. Among them, the area of ​​wheat stubble accounted for about 85%, while the yield has been hovering around 300 kg. Since the introduction of Yujing No.4 in 1988, after a large area experiment and demonstration, the average output per mu is 130-150 kg more than that of 68-11 mu. There is a large amount of over 500 kg land per mu for wheat stubble and a maximum yield of 602 kg per mu. So that my county average yield per mu from 300 kg to 502 kg. In cultivation technology,