西瓜－膜多用－地三收效益高孟凡静（长春市郊区农业技术推广中心）长春市郊区合心镇哈达村的夏清江，１９９４年春在区农业技术推广中心科技人员悉心指导下，将西瓜、花生、白菜在同一地膜上按季节混种，变西瓜的单季作为酉瓜、花生、白菜三季作，实现了一年三茬、一地三... Watermelon - Membrane with a variety of - to benefit the three high Mengfan (suburban agricultural technology promotion center in Changchun City) Suburbs in the town of Hatha Village Hathaway, the spring of 1994, the district agricultural technology promotion center under the guidance of scientific and technological personnel, the watermelon, peanuts , Cabbage in the same film according to the season of mixed, a single watermelon as a unitary melon, peanut, cabbage for three seasons, to achieve a year three crop, one to three ...