EFFECT OF SOWING DATES, PLANT SPACING AND NITROGEN LEVELS ON GROWTH AND YIELD OF RICE UNDER SALINE SOIL
Abstract: Two field experiments were conducted at the Experimental Farm of Agriculture Research Station, El-Sirw, Dammittia Province, Egypt during 2003 and 2004 seasons. The present attempt aimed to study the effect of four sowing dates i.e. April, 25th; May, 10th; May, 25th and June, 10th at different palnt spacing i.e. 15 x 10, 15 x 15 and 15 x 20 cm distance between hills and rows and diversity nitrogen levels i.e. 0, 55, 110 and 165 kg N/ha on growth and grain yield of Sakha 104 rice cultivar grown under soil salinity level of 8.0 and 7.5 mmhos/cm in 2003 and 2004 seasons, respectively. The collected data were LAI, dry matter production, flag leaf area, heading date, grain yield and its attributing characters.
The most promise results were summarized as follows: The sowing dates had significant effect on growth, grain yield and its components in both seasons. Early sowing of April, 25th performed better than other dates with respect of growth, grain yield and its attributes followed by date of May, 10th. Increasing nitrogen level up to 165 kg N/ha significantly increased growth, grain yield and its components. Regarding plating spacing, the narrowest spacing of 15 x1 0 cm was benefit for rice growth, grain yield and its components particularly, panicles number and tillers number/m2. Both wider spacing of 15 x 15 and 15 x 20 cm gave reasonable filled grains/panicle and panicle weight but the panicle number/m2 was less as compared to 15 x 10 cm.
The interaction results confirmed that superiority of early sowing date with 15 x 10 cm spacing under high nitrogen level of 165 kg N/ha.
Publication year 2005
Pages 265-283
Availability location معهد بحوث المحاصيل الحقلية - 9 شارع الجامعة- الجيزة
Availability number
Organization Name
serial title المؤتمر الدولى الحادى عشر لعلوم المحاصيل ـ قسم المحاصيل ـ كلية الزراعة ـ جامعة اسيوط ـ 15-16 نوفمبر ـ
Author(s) from ARC
Agris Categories Agriculture - General aspects
AGROVOC
TERMS		 Nitrogen. Rice. Saline soils.
Publication Type Conference/Workshop
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