Effect of intercropping of Maize and Bean on growth weeds control and yield plant in Gotvand area

Subject Areas : agronomy

Received: 2014-11-09 Accepted : 2015-02-03 Published : 2017-09-06

Keywords: mixed cropping, : Incremental method, weed weights,

Abstract :

In order to determine the intercropping of corn and beans control weed growth and yield, this study is a randomized complete block design with factorial experiment 3 Repeat in crop year1391was in the region Gotvand. In this experiment, two-factor, density and mixing ratio were considered for review. Experiment with replacement methods of intercropping of 1:1 (50% + 50% corn, beans), 1:2 (67% + 33% maize, beans), 2:1 (33% + 67% corn and beans) and incremental (100% + 20% maize, beans), (100% + 10% corn, beans), (beans, 100%) (100% maize) and the desired density and optimal hybrid maize than 640 NS (75 and 90 thousand plants per hectare) and local varieties of cowpea (150 and 200 thousand plants per hectare) was considered. Effect of intercropping and plant density on weed number was not significant but was reduced weed dry matter. The highest weed dry matter, 742 g per square meter of cultivated beans, the smallest with 253 grams of pure 100% corn + 20% bean belongs to treatment indicative intercropping system is superior to the system in control of the weed's monoculture. Evaluate the relative density of weed species showed that red root pigweed (Amaranthusretroflexus) with 44% density, the dominant weed species and weed Purple nutsedge  (Cyperusrotundus) Pigweed (Echinochloa crus galli), Alkekengi (physalisalkekengi) , common purslane (portulaceoleracea), white root pigweed (Amaranthusalbus) and cleome(Cleome viscose) in the category were the Also, the results showed that the highest grain yield of maize at a rate of 14,230 kg/ ha monoculture corn and bean density and optimal yield level of 3014 kg, the treatment of corn, 33% - 67% the beans densities the came desirable.

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