an evaluation of nitrogen and phosphorous efficiency in sugar beet seed bearing plants

نویسندگان

سعید صادق زاده حمایتی

ذبیح اله رنجی

چکیده

to assess the effects of different levels of nitrogen and phosphorous on yield and nutrient use efficiency of sugar beet (polygerm seed (cv. 7233)), this study was carried out in 1999-2001 in ardabil agricultural research station (alarough). the experiment contained two factors of: nitrogen in 4 levels (control, 100, 200 and 300 kg n/ha) and phosphorous in 3 levels (control, 100 and 200 kg p2o5/ha) in four replications based on a randomized complete block design. each plot consisted of 8 rows each with a length of 10 meters and interspacing of 65 cm. during the study, agronomic or economic (ae), physiological efficiency (pe), apparent recovery efficiency (are), and mineral nutrient efficiency (mne) were assessed. results indicated no significant effects of nitrogen and phosphorous application on crude and saleable seed yield. but application of nitrogen significantly (

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عنوان ژورنال:
علوم گیاهان زراعی ایران

جلد ۴۰، شماره ۳، صفحات ۰-۰

کلمات کلیدی
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