Effect of planting dates, planting patterns and nitrogen fertilization on earliness and some yield characteristics of cotton | ||
| Archives of Agriculture Sciences Journal | ||
| Volume 5, Issue 2, August 2022, Pages 293-311 PDF (850.86 K) | ||
| Document Type: Research article | ||
| DOI: 10.21608/aasj.2022.403814 | ||
| Authors | ||
| B. R. Bakheit1; A. Awadalla2; Azza O. M. Omar* 3; S. A. F. Hamoda3 | ||
| 1Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt | ||
| 2Agronomy Department, Faculty of Agriculture, Aswan University, Aswan, Egypt | ||
| 3Agronomy Research Section, Cotton Research Institute, Agricultural Research Center, Giza, Egypt | ||
| Abstract | ||
| The two succeded experiments were carried out conducted in El-Mattana Agricultural Research Station, Luxor governorate, Upper Egypt during two growing seasons (2019 and 2020) to measure the response of variety Giza 98 cotton as a new variety towards planting date (15th March and 15th April), planting pattern (30 cm distance between 2 hills and 70 cm ridge width (P1), 35 cm distance between 2 hills and 70 cm ridge width (P2),30 cm distance between 2 hills and 140 cm raised bed width (P3), and 35 cm distance between 2 hills and 140 cm raised bed width (P4)) and nitrogen fertilizer levels (45, 60 and 75 Kg N /feddan) (feddan = 4200 m² = 0.420 hectares = 1.037 acres) under Upper Egypt condition. Under 30 cm distance between 2 hills and 70 cm ridge width (P1) and using 75 Kg N/feddan treatments, the cotton planted on March 15th (D1) showed the highest values of the number of days from planting up to the first flower and the number of days from planting up to the first open boll, On the contrast, the cotton planted on April 15th (D2), showed the highest values of plant height (cm) at harvest time and first fruiting node. While, the cotton planted on March 15th (D1), under 35 cm distance between 2 hills and 140 cm raised bed width (P4) and using 75 Kg N/feddan treatments, showed the highest values of the number of fruiting (sympodial) branches/plant. In other hand, the planting on March 15th (D1), under 35 cm distance between 2 hills and 140 cm raised bed width (P4) and using 75 Kg N/feddan treatments, showed the highest values of number of open bolls/plant, boll weight average (g). While planting on April 15th (D2), under 30 cm between hills on ridge (P1) and the application of 45 Kg nitrogen/feddan produced the lowest values of these properties. | ||
| Keywords | ||
| cotton; new variety; planting pattern; boll weight | ||
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