Influence of sowing dates on forage and grain productivity of barley under conditions of the Sakhalin Island. V.A. CHUVILINA, O.S. PARKHATOVA

Abstract

Influence of sowing dates on forage and grain productivity of barley under conditions of the Sakhalin Island. V.A. CHUVILINA, O.S. PARKHATOVA (Sakhalin Research Institute of Agriculture, Yuzhno-Sakhalinsk).

The optimal terms of sowing spring barley in the monsoon climate of the Sakhalin Island have been determined. The highest yield per hectare of green mass (41.7–47.7 t), dry matter (8.3–8.8 t), feed units (6.9–7.2 t), crude protein (0.69–0.74 t), grain (53.9–64.3 h) and exchange energy (68.2–71.9 GJ) provided the May sowing dates – II and III decades. The best indicators of plant development during grain formation (height, daily growth, number of productive stems, weight of 1000 grains) were also formed during sowing at an early date.