نتایج جستجو برای: direct planting

تعداد نتایج: 438130  

ژورنال: علوم زراعی ایران 2021

To study the effects of tillage system, planting method and of nitrogen fertilizer rate on the agronomic characteristics and seed yield of rapeseed (Brassica napus L.) Dalgan oilseed rape cultivar, as the second crop after rice, a split factorial experiment in complete randomized block design with three replications was carried out in two cropping seasons (2016-2018) at paddy fields of Rice Res...

2014
Z. B. Feng X. Y. Wang X. B. Zhou Y. H. Chen J. J. Bi

The effects of irrigation and planting pattern on wheat in field conducted at Taian, northern China during 2011-12. The experiments consisted of two planting patterns (single and double rows) and two irrigation levels (0 and 180 mm) resulting in the same plant density (200 × 10 plant/ha). Each experiment plot was 3 m × 3 m in size and replicated thrice in split-plot design. During course of stu...

Journal: :پژوهش آب در کشاورزی 0
مهدی طاهری استادیار مرکز تحقیقات کشاورزی و منابع طبیعی استان زنجان. محمد عباسی محقق مرکز تحقیقات کشاورزی و منابع طبیعی استان زنجان . نایب دانشی محقق مرکز تحقیقات کشاورزی و منابع طبیعی استان زنجان. نیاز علی ابراهیمی پاک دانشیار و عضو هیئت علمی موسسه تحقیقات خاک و آب.

this study was carried out to investigate the effects of different irrigation regimes and planting methods on yield, yield components, morphological traits, and storage characteristics of a local onion cultivar, namely, goli ghesse. the experiment was conducted as a factorial split plot design with rcbd arrangement in four replications and for three years at kheirabad research station. irrigati...

Journal: :حفاظت گیاهان 0
نصرت اله کریمی آرپناهی سید وحید اسلامی سهراب محمودی محمد حسن سیاری

introduction: increasing crop competitive ability is an important part of integrated weed management (iwm). in this regard, identifying weeds reaction to soil fertility status for developing fertilizing methods, as components of iwm programs, is a necessity. materials and methods: in order to evaluate the growth characteristics of purple nutsedge under the conditions of interference with onion,...

سیادت, عطاءاله, لیموچی, کاوه , گیلانی, عبدالعلی ,

This study aimed at evaluating the effect of different planting dates (different ambient temperature conditions) on the characteristics of rice panicle and yield of its cultivars in Khuzestan climate in 2010. The experimental design was a split plot in a Randomized Block Design with four replications. The main factor was the planting date with three dates (May 25th , June 9th , and June 25th ) ...

2011
Nacer Bellaloui Krishna N. Reddy Anne M. Gillen Daniel K. Fisher Alemu Mengistu

Information on the effect of planting date and irrigation on soybean [Glycine max (L.) Merr.] seed composition in the Early Soybean Production System (ESPS) is deficient, and what is available is inconclusive. The objective of this research was to investigate the effects of planting date on seed protein, oil, fatty acids, sugars, and minerals in soybean grown under irrigated (I) and non-irrigat...

Journal: :Journal of nematology 1996
E E Perez J D Mueller S A Lewis

During the 1991 and 1992 soybean growing seasons, field plots were established in South Carolina to study the effect of planting date on at-planting nematode densities and subsequent yield losses caused by Hoplolaimus columbus. The susceptible and intolerant soybean cv. Braxton was planted on five dates from to May to 28 June in 1991 and from 12 May to 28 June in 1992. Nematodes were recovered ...

2017
Nguyen V. Long Yared Assefa Rai Schwalbert Ignacio A. Ciampitti

For maize (Zea mays L.), early planting date could be of advantage to high yields but a review of planting date effect on high-yielding data is not yet available. Following this rationale, a synthesis-analysis was conducted from the farmer annual maize contest-winner data (n = 16171 data points; 2011-2016 period); cordially provided by the National Corn Growers Association and a scientific lite...

2015
Zhan Fengmei Yao Hui Li Jiahua Zhang

The Northeast China (NEC) was the most important agriculture areas and known as the Golden-Maize-Belt. Based on observed crop data and crop model, we design four simulating experiments and separate relative impacts and contribution under climate change, planting date shift, and varieties change as well change of varieties and planting date. Without planting date and varieties change, maize yiel...

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