نتایج جستجو برای: 50 n50 and 75 n75 kg ha
تعداد نتایج: 16926236 فیلتر نتایج به سال:
Present production of rice is far below its reported potential yield because of being Ndeficiency, the major constraint. Because of poverty, small farmers have to rely on native soil N-supply. Between wheat harvest and rice transplanting, a dry-to-wet season transition (DWT) period exist with changing soil moisture from aerobic to anaerobic and a large amount of native soil N loss is hypothesiz...
The duration of the efficacy of 4% methoprene pellets against emergence of chironomid midges, Chironomus stigmaterus Say, Goeldichironomus amazonicus (Fittkau) and Tanypus imperialis Sublette, in man-made lakes supplied with tertiary effluent water in Palm Desert, California, was dose dependent. For C. stigmaterus and T. imperialis, the rate of 4.5 kg/ha of the controlled release pellet formula...
An experiment was conducted to study the effect of sulphur application on growth, yield and quality of onion at Horticulture Farm of Institute of Agriculture, Visva-Bharati, Sriniketan. The treatments consisted of six incremental doses of sulphur application (10, 20, 30, 40, 50 and 60 kg ha-1) and no sulphur application (control, 0 kg S ha-1). Treatments were arranged in Randomized Block Design...
A two-year study (2007-2008) was carried out to explore the effect of split application of nitrogen fertilizer on yield, dry matter and harvest index of Marfona potato cultivar in Isfahan Agricultural Research Center, Iran. A randomized complete block design with a split plot arrangement with three replications was used. The main plots were three levels of nitrogen (100, 200 and 300 kg ha-1) an...
The estimation accuracy of plant dry matter by spectra- or remote sensing-based methods tends to decline when canopy coverage approaches closure; this is known as the saturation problem. This study aimed enhance and subsequently use critical nitrogen dilution curve (CNDC) diagnose N in Choy Sum analyzing combined information imaging height. A three-year experiment with different levels (0, 25, ...
abstract conservation tillage practices integrated with appropriate residue management is an efficient approach in sustainable agriculture to prevent the removal or burning of crop residues. two years field experiments were conducted to evaluate the effect of wheat residue management on yield, yield component and morphophysiological characteristics of corn. experimental design was split plot us...
این آزمایش جهت بررسی اثرات کودهای تلفیقی (کود گاوی و کود نیتروژنه) و کود آهن بر روی عملکرد کمی و کیفی آفتابگردان آذرگل در مزرعه تحقیقاتی دانشگاه شهید باهنر کرمان در یک خاک آهکی به اجرا در آمد. این بررسی بصورت اسپلیت پلات در قالب طرح بلوک های کامل تصادفی و در 3 تکرار پیاده گردید. تیمارهای آزمایشی شامل کرت اصلی ( t/ha 14 کود گاوی + kg/ha 217 کود اوره) = t1 ، ( t/ha 12 کود گاوی + kg/ha 261 کود اور...
abstract fertilizer use efficiency (fue) is one way of improving the fertilizer management in agriculture. in this study, spinach (spinacea oleracea) was used as a case study vegetable to determine its nitrogen use efficiency in varamin, iran. an experiment was conducted using split plot design with three replications. treatments included of five levels of n as 0, 150, 200, 250 and 300 kg ha-1 ...
The field experiment was conducted at Agricultural Research station, Mandor, Agriculture University, Jodhpur during kharif, 2019 to evaluate nitrogen uptake and quality parameters as influenced by different weed management practices in kharif groundnut. laid out randomized block design (RBD) with thirteen treatments of replicated thrice. Results revealed that weed-free treatment found significa...
The field experiment was conducted at Central Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj, (U.P.) during Zaid-2020. soil experimental site sandy loam in texture, nearly neutral reaction (pH 7.3), EC (dS m-1), available N (kg ha-1), P ha-1) and K ha-1). laid out Randomized Block Design having ten treatment consisted Different sources Nitrogen levels 100% through urea (N1), 75% ...
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