THE EFFICIENCY OF BARE AND GREEN-MANURED FALLOWS UNDER SPRING WHEAT IN FOREST-STEPPE OF PRE-BAIKAL AREA
The article presents the material of field and laboratory investigations on the effect of bare and green-manured fallows on yield structure elements and yielding capacity of wheat. Positive influence of clover and melilot green-manured fallows, as well as bare fallow fertilized with organic manure, has been stated and connected with longer plants up to 107.5 - 109.9 сm, greater amount of spikelets in a spike up to 16.9 - 17.1 un., larger weight of 1000 kernels up to 40.9 - 41.1 g. The highest wheat yield was obtained on bare fallow fertilized with organic manure - 3.86 t/hа, on clover fallow - 3.74 t/hа and on melilot fallow - 3.51 t/hа. Crucial elements of yield structure having mostly affected wheat yields on different fallows were the amount of spikelets in a spike ( r =0.925) and the number of plants till the moment of harvesting ( r =0.885).