Study on Corn yield and yield component at different levels of Nitrogen intercropping Corn – Soybean

ABSTRACT: To evaluate yield and yield components of corn nitrogen levels and the ratio of cultivated land in equal mixture of corn and soybeans, field experiments in 2009 at the Research Farm Faculty of Agricultural Sciences, Sari as split plot in randomized complete block design with three replications and with two different treatments of nitrogen and operating ships was carried out. Cody factors include: control, 50, 100, 200 kg ha and operating culture treatments include: pure cultures of maize, mixed cultures (75% corn, soybeans +25, +50% corn 50% soybeans, corn 25% soybeans +75) determine and apply were. In this experiment, such as corn traits: ear weight, grain yield, biological yield, harvest index and LER was calculated. Analysis of variance of different cultivation treatments tested showed a significant component of the LER for different treatments were not significantly grown. Most ear weight for treatments 50, 100 and 200 kg ha of nitrogen in pure cultures of maize and 100 kg of nitrogen in mixed cultures of maize 25%, the highest seed yield for the treatments 50 and 100 kg of nitrogen in pure cultures of maize, the highest yield biological corn for control treatment without the use of nitrogen in pure cultures treated maize and 50 kg of pure nitrogen in cultivated maize, the highest harvest index for the treatment 100 kg of nitrogen in mixed cultivation of maize and 75 percent for most treatments LER 100 kg of nitrogen in mixed cultivation of maize and 25 percent of soybeans were 75