ENVIRONMENTAL ASSESSMENT OF UTILIZATION OF SOME ORGANIC AND BIOLOGICAL FERTILIZERS FOR QUINOA CROP PRODUCTION

Abstract

ABSTRACT A field experiment was carried out in sandy soil of Agriculture Station at Ismailia governorate, ARC, Egypt, during two successive winter seasons 2019/ 2020 and 2020/2021.The aim of this study was to investigate the effect of organic and bio fertilizers as a partial replacement of mineral fertilizer on soil fertility and productivity of quinoa (Chenopodium quinoa). Four mineral NPK rates (0+0+0,50+100+25,75+150+50 and 100+200+75N, P2O5,K2O kg/ fed.) alone or with organic and bio fertilizers i.e. (algea (Cyanobacteria), bio-fertilizer, compost+ bio-fertilizer and compost) . Results revealed the following findings: The application of organic and bio fertilizers i.e. (algea (Cyanobacteria), bio-fertilizer, compost+ bio-fertilizer and compost) alone or with levels of mineral treatment gave a significant increase for nutrient concentration and uptake of (nitrogen, phosphorous, potassium, iron, manganese and zinc) in soil and quinoa plant at 30,40 and 70 days after sowing (vegetative stage) as average of two seasons. Also, a marked increase was observed for plant growth parameters, i.e. plant length, No. of branches and weight of 1000 seeds of quinoa when compared with non-treatment. Moreover, yield of seed (ton /fed.),seed content of oil ,protein and carbohydrates as well as macro and micronutrient uptake were also increased as affected with the above mentioned treatments as compared to untreated ones. The interaction effect between organic and bio fertilizers with levels of mineral treatments gave a significant increase in growth parameters , seed quality and seed composition .