论文部分内容阅读
新疆和田河、叶尔羌河流域光热资源丰富，适宜两熟栽培。１９９１～１９９２年两河流域建成小麦玉米套种吨粮田３６．２万亩。最佳种植方式为７０～７５ｃｍ带种６行小麦，预留５０～４５ｃｍ空行套种２行玉米；最佳配套品种：小麦为冀麦５４１８和冀麦７６，玉米为Ｓｃ７０４和掖单１２；最佳施肥量为小麦有机肥３ｔ＋Ｎ＿１５Ｐ＿１２，玉未有机肥２ｔ＋Ｎ＿１５；投产比为１：２．３；光能利用率提高１４．３％，热能利用率提高１４．８％，净同化率提高１２．８％。
Xinjiang Hotan River, Yarkant River Basin light and heat resources, suitable for two cultivation. From 1991 to 1992, a total of 362,000 hectares of wheat grain were planted in the two rivers. The best planting methods were 6 rows of wheat with 70 ~ 75 cm, and 2 rows of maize with 50 ~ 45 cm blank rows. The best varieties were: Ji Jimi 5418 and Ji Ma 76, corn was Sc704 and Yedan 12; The optimum amount of fertilizers was 3t + N_15P_12 for wheat and 2t + N_15 for jade without organic fertilizer; the ratio of production to use was 1: 2.3; the utilization of light energy increased by 14.3%, the utilization of heat energy increased by 14.8% and the net assimilation rate increased by 12.8 %.