黑穗醋栗果实干物质和营养元素吸收积累及分配规律的研究（第一报）

本文报道了早熟黑穗醋栗果实干物质和主要营养元素吸收、积累及分配的规律。结果表明，干物质和主要营养元素吸收、积累及分配分为三个阶段．１．果实生长初期阶段，干物质为总量的２８．８８％～２９．１９％，吸收氮量为总氮量的５８．２１％～５８．９８％，吸收磷量是总量的３７．０１％～４２．１３％，吸收钾量是总钾量的３７．７１％～４１．７７％．２．果实迅速生长阶段，干物质积累为总量的６０．９０％～６２．３８％，吸收氮量为总氮量的４１．７５％～４５．５８％，吸收磷量为总磷量的４２．３８％～４５．５５％，吸收钾量为总钾量的４８．４８％～５３．９３％．３．果实成熟阶段果实干物质积累为总量的８．５２％～１０．２０％，吸收氮量为总氮量的０．０２３％～５．３８％，吸收磷量为总磷量的１２．３０％～２０．１３％，吸收钾量为总钾量的４．３５％～１１．５３％。

STUDY ON THE DRY MATTER AND NUTRIENT ABSORPTION,ACCUMULATION AND DISTRIBUTION IN FRUIT OF BLACK CURRANT

Dry matter and nutrient absorption, accumulation and distribution in fruit of black currant were studied. The results indicated that dry matter and nutrient absorption,accumulation and distribution in black currant fruit were divided in to 3 periods.1)The early period of fruit growth, dry matter content was 28. 84 to 29. 18 percent of annual total dry matter, N content was 58.21 to 58. 98 percent of annual total N,P content was 37. 01 to 42. 13 percent of annual total P, and K content was 37. 71 to 41. 7 percent in this period.2) The rapid fruit growth period, dry matter, N, P, and K contents were 60. 90 to 62. 38,41. 75 to 45. 58, 42. 38 to 45. 55 and 48. 48 to 53.93 percent of annual total respectively in this period. 3) The fruit matured period,dry matter, N, P and K content were 8. 52 to 10. 20, 0. 23 to 5. 38, 12. 30 to 20. 13 and 4. 35 to 11. 53 percent of annual total respectively in this period.