nyihia
- to reduce, decrease. To reduce, to decrease. To make something smaller in quantity, degree, or intensity, particularly used in agricultural contexts for reducing pest incidence, temperature, or application rates.
Example: Mũceng'i ĩrehaga baita nene, kwa mũhiano, gũteithĩrĩria kũiga maaĩ tĩĩri-inĩ rĩrĩa gwĩ kũũmũ, kũgiria ria rĩkũre, gũtuĩka thumu rĩrĩa mahuti macio mabutha , gũthondeka mũmbĩre wa tĩĩri ona kũgiria ... (Mulching has several benefits to coffee e.g. conservation of moisture during dry spells, suppression of weed growth, nutrient supply, improvement of soil structure and water infiltration, checking ...); Mbũmbũĩ ĩno ĩtũmaga mathangũ matuĩke ma rangi wa ngoikoni na magĩe na mũhianĩre ũngĩ, ũguo kũnyihia ũhoti wa mũtĩ gwĩthondekera irio. (The mite can cause the leaves to become yellow and deformed, reducing the tree’s ability to photosynthesize.); Njĩra cia kĩĩmerera: Gũceha wega, kũnyihia ũhũthĩri wa mũtũkanio wa N foliar feed, niwega kũgayania N foliar feed, Gũthambia indo cia Guceeha na Kerol 1%, kana Lysol 3% kana Methylated spirit . (Cultural control - proper pruning, minimising use of high N foliar feed formulations, splitting ground N application, sterilizing pruning tools (e.g. with Kerol 1% or Lysol 3% or methylated spirit),); Mĩrimũ ĩmwe mĩũrũ ya gũtambanio ĩrĩa ĩnyihagia hinya wa kũrũa na mĩrimũ nĩĩhotomagia hinya wa njanjo kũruta wĩra wega. (Certain infectious diseases that lower immunity may result in vaccine failure); ĩnyihagia magetha na gĩkĩro kĩnene (• It can seriously reduce crop yield); ĩnyihagia mahuti, matunda makeruha matakinyanĩĩre na maciaro kũnyiha na gĩcunjĩ kĩa 50 harĩ igana kana makĩrĩa (• It causes significant reduction in leaf area, premature ripening and yield loss of up to 50 % or more); Gatambi ka mealybugs gatũmaga mũtĩ wage hinya na ũnyihie magetha. (The mealybug can cause the tree to become weakened and less productive.); iii. Kiugũ gĩbatiĩ gwakwo hakũhĩ na mũciĩ mwena ũrĩa rũhuho rũtahurutanaga mũno. Mwena ũyũ ũnyihie mũhera wa kuuma kiungu-inĩ ũrĩa ũngĩkorwo ũgicoka na mũciĩ. (iii. The unit should be closer to the house and on the opposite side of the wind. The location of the unit in relation to the house should ensure minimal smell from manure pit.); ũgunyu mũingĩ nĩ utũmaga tĩri ũnyihie Magnesium na phosphorus. (Excessive watering increases water logging hence deficiencies of Magnesium and Phosphorus.)