Agriculture biologization levels in cultivation of spring barley in forest steppe of middle Volga

Open Access

Table 1.

Yield values of the spring barley var. Povolzhsky 65 depending on soil treatment methods, fallow type and fertilizers through the research period

Variants			Yield, t/ha
Fallow type (factor A)	Soil treatment (factor B)	Fertilizer (factor C)	2005	2006	2007	2008	Average
Complete fallow	Plowing	No fertilizer	1.37	2.4	2.04	2.58	2.18
	Plowing	Fertilized background	1.49	3.00	2.25	‐	2.25
	Loosening	No fertilizer	1.26	2.52	1.50	2.48	1.94
	Loosening	Fertilized background	1.36	2.86	1.92	‐	2.05
	No autumn mechanical treatment	No fertilizer	1.24	2.50	1.47	2.39	1.90
	No autumn mechanical treatment	Fertilized background	1.32	2.80	1.87	‐	2.00
Average for complete fallow		No fertilizer	1.29	2.59	1.67	2.48	2.01
Average for complete fallow		Fertilized background	1.39	2.89	2.01	‐	2.10
Green‐manured fallow	Plowing	No fertilizer	1.59	2.99	2.30	2.79	2.42
	Plowing	Fertilized background	1.69	3.23	2.46	‐	2.46
	Loosening	No fertilizer	1.45	2.83	2.15	2.64	2.27
	Loosening	Fertilized background	1.60	2.98	2.32	‐	2.30
	No autumn mechanical treatment	No fertilizer	1.44	2.82	2.02	2.33	2.15
	No autumn mechanical treatment	Fertilized background	1.55	2.93	2.18	‐	2.22
Average for green‐manured fallow		No fertilizer	1.49	2.88	2.16	2.59	2.28
Average for green‐manured fallow		Fertilized background	1.61	3.05	2.32	‐	2.33
LSD 05 total LSD 05 of factorA LSD 05 of factor B LSD 05 of factorC			0.07 0.04 0.05 0.05	0.13 0.08 0.10 0.09	0.36 0.21 0.25 0.18	0.36 0.21 0.25 0.27
Average for soil treatments
Average for plowing		No fertilizer	1.48	2.87	2.17	2.67	2.30
Average for plowing		Fertilized background	1.59	3.12	2.36	‐	2.36
Average for loosening		No fertilizer	1.36	2.68	1.83	2.56	2.11
Average for loosening		Fertilized background	1.48	2.92	2.12	‐	2.18
Average for No autumn mechanical treatment		No fertilizer	1.34	2.66	1.75	2.36	2.03
Average for No autumn mechanical treatment		Fertilized background	1.44	2.87	2.03	‐	2.11

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