EFFECTS OF NITRAGINE AND MINERAL FERTILIZER RATES USED ON REPEATED LEGUME CROPS ON SEED GERMINABILITY
IMINOV ABDUVALI ABDUMANNOBOVICH
Tashkent State Agrarian University, Republic of Uzbekistan.
KHAYRULLAYEV SARDOR SHAMSIDDIN UGLI *
Tashkent State Agrarian University, Republic of Uzbekistan
KHOLDAROVA DILFUZA ERGASHBOYEVNA
Andijan Agriculture and Agrotechnologies Institute, Republic of Uzbekistan.
HATAMOV SALIMJON RAKHIMJON UGLI
Andijan Agriculture and Agrotechnologies Institute, Republic of Uzbekistan.
KUZIBOEV SHUKHRATJON TURSINALIEVICH
Andijan Agriculture and Agrotechnologies Institute, Republic of Uzbekistan.
*Author to whom correspondence should be addressed.
Abstract
Nitragine treatment of soybean and mung bean seeds before sowing as a secondary crop after winter wheat had a positive effect on seed germination in laboratory and field conditions, germination was found to be 0.2-0.8% higher in treated soybean and mung bean seeds with nitragine before sowing than untrated seeds. The use of phosphorus and potassium fertilizers in soybean and mung bean crops grown as a secondary crop showed that the germination of seeds in the field was 0.6-0.7% higher than in the control plots sown without the use of mineral fertilizers. The highest germination rates of seeds in the laboratory were observed with Nitragine before sowing of soybean and mung bean seeds, and mineral fertilizers N30P90K60 kg / ha was observed in cotton-growing variants next year, 98.7-99.3%. It was found that the germination rate of seeds in laboratory conditions in the next year's cotton cultivation in the variants of mineral fertilizers N30R90K60 kg / ha in the background, in which not used nitragine variants before sowing the seeds of soybean and mung bean crops were 97.3-98.0%.
Keywords: Repeated crop, soybean, mung bean, nitragine, nitrogen, phosphorus, potassium, cotton, cotton seeds, germinability