نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش آموخته دکتری گروه زراعت دانشکده کشاورزی دانشگاه زابل، زابل، ایران
2 گروه زراعت دانشکده کشاورزی، دانشگاه زابل، زابل، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In order to investigate the effect of manure and chemical fertilizers on soil properties and sunflower seed yield, the present study was conducted in the form of split plots in a randomized complete block design with three replications in the crop year 2019-2020 at the Research Farm of University of Zabol. The main factor of tillage methods included moldboard plow + disc, chisel plow + disc, and disc. Sub-factor of fertilizer levels included non-fertilizer, 100 kg/ha diamonium phosphate, 25 tons/ha manure + 100 kg/ha diamonium phosphate, 50 tons/ha manure + 100 kg/ha diamonium phosphate, 25 tons/ha manure, 50 tons/ha manure. The results showed that highest amount was obtained with the application of 100 kg/ha diamonium phosphate in tillage conditions with chisel plow + disc for soil porosity at a depth of 20 cm (82%), with the application of 50 tons/ha manure in tillage conditions with chisel plow + disc for soil porosity at a depth of 40 cm (86.8%), and with the application of 25 tons/ha manure in tillage conditions with moldboard plow + disc for 1000-seed weight (14.2%) and seed yield (84.8%). Disc tillage with 100 kg/ha diamonium phosphate fertilizer was suitable to maintain soil moisture, and in this regard, if a decrease in the consumption of chemical inputs is considered, the use of 25 tons/ha manure with disc tillage is recommended to maintain soil moisture. Also, in order to increase seed yield and 1000-seed weight, the use of 25 tons/ha manure in conventional tillage can be recommended.
کلیدواژهها [English]
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