唐山市新区张家洼村技术员张文举,在多年生产实践中,总结出花生“三改”高产栽培措施。他种的1.6亩露地花生,在选用大果型鲁花9号和 P12 等优良品种的基础上,又采取了“三改”措施,因而连续两年平均亩产突破400公斤,创造了唐山地区花生高产记录。一、改一埯多粒为一埯双粒。过去种花生,一般总是每亩8000—10000埯,每埯点4—5粒种子,每亩种植密度4—5万株。由于密度过大,又都集中在一起生长,单 Zhang Wenju, a technician at Zhangjiawa Village, Tangshan New District, came out with many years of production practice to sum up the high-yielding cultivation measures for “three changes” of peanuts. He planted 1.6 acres of ground peanuts, the selection of large fruit Luhua No. 9 and P12 and other fine varieties, based on the “three changes” measures taken, so the average yield per mu for two consecutive years exceeded 400 kg, creating the Tangshan area Peanut high yield records. First, change one 埯 more than one grain of grain as a double grain. In the past, peanuts were generally 8000-10000 每 per mu, with 4-5 seeds per 埯, with a planting density of 4-5 000 plants per mu. Due to the density is too large, are concentrated together to grow, single