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UO'K: 621.1 631.8 653.6
Effect of herbicides on corn yield
Sayfullaeva Nazokat Kobiljonovna is an independent researcher
Annotation. Increasing the production of grain in Uzbekistan should obespechivatsya prezhde vsego by increasing urojaynosti. Dlya etogo neobxodimo ispolzovat vse imeyushchiesya rezervy. In usloviyax sovremennogo intensivnogo zemledeliya borba s sornyakami yavlyaetsya odnim iz vajneyshix elementov sistemy zemledeliya, ot kotorogo zavisit uvelichenie urojaynosti selkhoz kultur . In usloviyax sovremennogo intensivnogo zemledeliya borba s sornyakami yavlyaetsya odnim iz vajneyshix elementov sistemy zemledeliya, ot kotorogo zavisit uvelichenie urojaynosti selkhoz kultur.
Abstract. Increase production grain in Uzbekistan must be provided first of all by increasing to productivities. For this necessary to use all available reserves. In the condition of the modern intensive husbandry fight with weed is one of the most important system element of the husbandry, from which depends to increase the productivity of selxoz cultures. In the condition of the modern intensive husbandry fight with weed is one of the most important system element of the husbandry, from which depends to increase to agricultural productivities.
Klyuchevыe slova: herbicide, preparation, zlakovыe rastenie, sornыe rastenie, ozimoy pshenitsy, biologicheskaya effektyvnost.
In the irrigated lands of Uzbekistan, there is an opportunity to grow high yields of corn as a grain crop for grain, silage and beet mass. Another advantage of planting corn is that it is more resistant to replanting in May. Corn is grown on irrigated lands of the republic. Good results are obtained when alfalfa, cotton, potatoes, melons, and autumn cereals are planted as past crops.
Corn can not be placed after the beets, because the absorption of phosphates disrupts the feeding process. The best result is the placement after legume crops , which increases the yield and at the same time leads to an improvement in grain quality.
S ilos for m corn when planted doni dumbul pi shiqlik period collected . This The moisture content of the green mass at the time will be around 65-70% so that the silo is suppressed creates convenience . Ya shil mass and s ilos yield on KSK-100, Maral-2.6, SK-2.6A machines is harvested . B ahorda planted corn 70-75% of the grain is sorghum full ethyl ganda leaves , leaves and of the stems humidity is 63-65 % .
M corn varieties a ng'izga when planted hostage and cold tushgunga until pick up should be taken . Agar s ovuq ur sa poya va leaves ining nutritional value it is observed that the cut is cut .
Experimental results show that when using soil herbicide of FAO 190 early ripening variety (Super stomp) in the control herbicide- free variant silage yield 200 ts / ha, grain yield 35 ts / ha, Stomp 4 l / ha as a standard silage yield 620 ts / ha, additional yield 420 ts / ha, grain yield 95 ts / ha, additional yield 60 ts / ha, Super stomp, 33% em.k. 3 l / ha when used silage yield 630 ts / ha, additional yield 420 ts / ha, grain yield 98 ts / ha, additional yield 63 ts / ha, Super stomp, 33% em.k. 6 l / ha when used silage yield 625 ts / ha, additional yield 425 ts / ha, grain yield 96 ts / ha, additional yield 61 ts / ha. formed.
Kubanskaya konservnaya - 148 fast-cooking varieties (Super stomp) when applying soil herbicide When using silo yield 198 ts / ha, grain yield 30 ts / ha, Stomp 4 l / ha as a standard in the control herbicide -free variant silage yield 618 ts / ha, additional yield 420 ts / ha, grain yield 92 ts / ha, additional yield 62 ts / ha, Super stomp, 33% em.k. 3 l / ha when used silage yield 625 ts / ha, additional yield 427 ts / ha, grain yield 94 ts / ha, additional yield 64 ts / ha, Super stomp, 33% em.k. 6 l / ha when used silage yield was 616 ts / ha, additional yield 418 ts / ha, grain yield 93 ts / ha, additional yield 63 ts / ha.
When using the herbicide FAO 190 early maturing variety (Elyumis105) during the growing season , the silage yield is 190 ts / ha in the herbicide-free variant, the grain yield is 34 ts / ha, the silage yield is 629 ts / ha in the Christmas duo k.s.- 1.2 l / ha (standard) . ha, additional yield 436 ts / ha, grain yield 98 ts / ha, additional yield 64 ts / ha, silage yield 630 ts / ha when applied Elyumis105 1 l / ha, additional yield 440 ts / ha, grain yield 101 ts / ha, additional yield 67 ts / ha, when using Elyumis105 2 l / ha silage yield 625 ts / ha, additional yield 435 ts / ha, grain yield 100 ts / ha, additional yield 66 ts / ha. showed. Kubanskaya konservnaya - 148 fast-cooking varieties (Elyumis105) herbicide during growth silage yield 188 ts / ha, grain yield 33 ts / ha, Miladar duo k.s.- 1.2 l / ha (standard), silage yield 620 ts / ha, additional yield 432 ts / ha, grain yield 96 ts / ha, additional yield 63 ts / ha, when using Elyumis105 1 l / ha silage yield 625 ts / ha, additional yield 437 ts / ha, grain yield 99 ts / ha, additional yield 66 ts / ha, Elyumis105 2 l silage yield when applied to / 623
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